CN115240719A - Cache capacity determination method, device, Bluetooth playback device and storage medium - Google Patents

Abstract

The application belongs to the technical field of computers, and particularly relates to a cache capacity determination method and device, a Bluetooth playing device and a storage medium. The cache capacity determining method is applied to Bluetooth playing equipment and comprises the following steps: acquiring sampling parameters of audio data transmission within historical sampling duration; if the number of the sampling parameters is larger than or equal to a number threshold, acquiring stability parameters of audio data transmission in the historical sampling duration based on the sampling parameters; and acquiring a target cache capacity according to the stability parameter, wherein the target cache capacity is the cache capacity of audio data when the Bluetooth playing device is connected with the terminal device next time. By adopting the method and the device, the accuracy and the efficiency of determining the cache capacity can be improved while the consumption of test resources is reduced.

Description

Cache capacity determination method, device, Bluetooth playback device and storage medium

technical field

The present application belongs to the field of computer technology, and in particular, relates to a cache capacity determination method, device, Bluetooth playback device and storage medium.

Background technique

With the development of science and technology, communication technology has also developed rapidly, making the popularity of Bluetooth playback devices higher and higher. The terminal device can connect with the Bluetooth playback device when receiving the connection instruction from the Bluetooth playback device. When the Bluetooth playback device and the terminal device are connected, the Bluetooth playback device can receive the audio data transmitted by the terminal device, and play the audio data, so as to facilitate the use of the user.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a method, device, Bluetooth playback device, and storage medium for determining a cache capacity, which can improve the accuracy and efficiency of determining the cache capacity while reducing the consumption of test resources. The technical solutions of the embodiments of the present application are as follows:

In a first aspect, an embodiment of the present application provides a method for determining a cache capacity, which is applied to a Bluetooth playback device, and the method includes:

Obtain the sampling parameters of audio data transmission within the historical sampling duration;

If the quantity of the sampling parameters is greater than or equal to the quantity threshold, obtain the stability parameter of the audio data transmission within the historical sampling duration based on the sampling parameters;

A target buffer capacity is obtained according to the stability parameter, where the target buffer capacity is the buffer capacity of audio data when the Bluetooth playback device and the terminal device are next connected.

In a second aspect, an embodiment of the present application provides an apparatus for determining a cache capacity, and the apparatus includes:

a sampling parameter obtaining unit, used for obtaining sampling parameters of audio data transmission within the historical sampling duration;

a stability parameter obtaining unit, configured to obtain the stability parameter of audio data transmission within the historical sampling duration based on the sampling parameter if the quantity of the sampling parameter is greater than or equal to a quantity threshold;

A buffer capacity acquisition unit, configured to acquire a target buffer capacity according to the stability parameter, where the target buffer capacity is the buffer capacity of audio data when the Bluetooth playback device and the terminal device are next connected.

In a third aspect, a Bluetooth playback device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the first aspect when executing the computer program The method of any one.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements any of the methods described above.

In a fifth aspect, an embodiment of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the program as described in the first embodiment of the present application. Some or all of the steps described in an aspect. The computer program product may be a software installation package.

The beneficial effects brought by the technical solutions provided by some embodiments of the present application include at least:

In one or more embodiments of the present application, by acquiring the sampling parameters of audio data transmission within the historical sampling duration, if the number of sampling parameters is greater than or equal to the number threshold, the sampling parameters of the audio data transmission in the historical sampling duration are acquired based on the sampling parameters The stability parameter is to obtain the target cache capacity according to the stability parameter, and the target cache capacity is the cache capacity of the audio data when the Bluetooth playback device and the terminal device are next connected. Therefore, only when the number of sampling parameters is greater than or equal to the number threshold, the target cache capacity can be dynamically determined based on the stability parameters. There is no need to perform a large number of tests to determine the fixed cache capacity, which can reduce the high consumption of test resources and reduce test resources. At the same time, there is no need to identify the transmission situation after each audio data playback, which can reduce the lag in the adjustment of the buffer capacity, and can take into account the delay and anti-interference in the audio data transmission process, which can reduce the amount of test resources. At the same time, the accuracy and efficiency of cache capacity determination are improved.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

1 shows a schematic background diagram of a method for determining a cache capacity applied to an embodiment of the present application;

FIG. 2 shows a schematic background diagram of a method for determining a code rate applied to an embodiment of the present application;

3 shows a system architecture diagram of a method for determining a cache capacity applied to an embodiment of the present application;

4 shows a schematic flowchart of a method for determining a cache capacity according to an embodiment of the present application;

5 shows a schematic flowchart of a method for determining a cache capacity according to an embodiment of the present application;

6 shows an example schematic diagram of a Bluetooth playback device storing sampling parameters according to an embodiment of the present application;

FIG. 7 shows a schematic flowchart of a parameter level adjustment method according to an embodiment of the present application;

8 shows a schematic diagram of an example of an interface of a Bluetooth playback device according to an embodiment of the present application;

FIG. 9 shows a schematic structural diagram of an apparatus for determining a cache capacity according to an embodiment of the present application;

FIG. 10 shows a schematic structural diagram of an apparatus for determining a cache capacity according to an embodiment of the present application;

11 shows a schematic structural diagram of an apparatus for determining a cache capacity according to an embodiment of the present application;

FIG. 12 shows a schematic structural diagram of a Bluetooth playback device according to an embodiment of the present application.

Detailed ways

In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

In the description of the present application, it should be understood that the terms "first", "second" and the like are used for descriptive purposes only, and should not be construed as indicating or implying relative importance. In the description of the present application, it should be noted that, unless otherwise expressly specified and defined, "including" and "having" and any modifications thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood in specific situations. Also, in the description of the present application, unless otherwise specified, "a plurality" means two or more. "And/or", which describes the association relationship of the associated objects, means that there can be three kinds of relationships, for example, A and/or B, which can mean that A exists alone, A and B exist at the same time, and B exists alone. The character "/" generally indicates that the associated objects are an "or" relationship.

With the development of science and technology, there are more and more types of terminal devices, and more and more application functions that terminal devices can support. FIG. 1 shows a schematic background diagram of a method for determining a cache capacity applied to an embodiment of the present application. The terminal device may support the Bluetooth function. For example, the terminal device can use the Bluetooth function to send audio data to the Bluetooth playback device, so that the Bluetooth playback device can play the audio data, which improves the convenience of audio data playback and improves the user experience. As shown in Figure 1, a fixed buffer capacity is set in the Bluetooth playback device. The Bluetooth playback device can be, for example, a Bluetooth watch. After the Bluetooth playback device establishes a connection with the terminal device, the Bluetooth playback device may buffer the received audio data in a buffer area corresponding to the fixed buffer capacity when receiving the audio data sent by the terminal. When the Bluetooth playback device detects that the buffering of the audio data buffered in the buffer area is completed, the Bluetooth playback device can output the audio data.

It is easy to understand that when the Bluetooth playback device sets a fixed buffer capacity, when the fixed buffer capacity is large, the playback delay of the audio data is relatively high. When the fixed buffer capacity is small, the transmission stability of the audio data is poor. Therefore, users need to perform a large number of tests to determine the fixed buffer capacity, so that the fixed buffer capacity can take into account the audio data playback delay and transmission stability, resulting in high test resource consumption.

According to some embodiments, FIG. 2 shows a schematic background diagram of a method for determining a cache capacity applied to an embodiment of the present application. As shown in FIG. 2 , the Bluetooth playback device can adjust the buffer capacity range based on the transmission environment after the audio data is played. When the Bluetooth playback device determines that the current transmission environment of the audio data does not meet the preset environmental requirements, the Bluetooth playback device can increase the buffering amount of the audio data, and buffer more audio data to improve the stability of the audio data transmission. For example, when the transmission of audio data from a Bluetooth playback device is unstable, buffer data can be added to improve the stability of audio data transmission. When the Bluetooth playback device determines that the current transmission environment of the audio data meets the preset environment requirements, the terminal device can reduce the buffering amount of the audio data, reduce the playback delay of the audio data, and improve the user's sound quality experience. When the transmission of audio data from the Bluetooth playback device is relatively stable, the buffered data can be reduced, which can provide a better delay experience. At that time, when the Bluetooth playback device adjusted the buffer capacity based on the current transmission environment, the specific capacity value of the buffer capacity could not be determined, and the transmission status was only identified after each audio data was played, and a large amount of data could not be analyzed, resulting in the adjustment and comparison of the buffer capacity. Lag, making cache capacity determination less accurate and efficient.

According to some embodiments, FIG. 3 shows a system architecture diagram of a cache capacity determination method applied to an embodiment of the present application. As shown in FIG. 3 , the execution subject of the embodiment of the present application is a Bluetooth playback device. The Bluetooth playback device includes, but is not limited to, a Bluetooth module, a Bluetooth headset, a Bluetooth vehicle, a Bluetooth MP3 player (Moving Picture Experts Group Audio Layer-3), and the like. The Bluetooth playback device includes a speaker. A terminal device refers to a device that performs audio data transmission with a Bluetooth playback device. The terminal device can be a terminal device with Bluetooth function. The terminal device includes but is not limited to: wearable devices, handheld devices, personal computers, tablet computers, and vehicle-mounted devices. , smartphone, computing device, or other processing device connected to a wireless modem, etc. The cache capacity determination device may be called by different names in different networks, for example: user equipment, access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, Buffer size determination in wireless communication devices, user agents or user equipment, cellular telephones, cordless telephones, personal digital assistants (PDAs), 5th generation mobile networks (5G) networks or future evolved networks device etc.

According to some embodiments, the Bluetooth playback device can be connected to the terminal device through a network. The network is used to provide a communication link between the Bluetooth playback device and the terminal device. A network may include various connection types, such as wireless communication links, and the like. It should be understood that the numbers of Bluetooth playback devices, networks and terminal devices in FIG. 3 are only illustrative. According to actual needs, there can be any number of Bluetooth playback devices, networks and terminal devices. For example, the terminal device may be multiple terminal devices, and the Bluetooth playback device may select one of the terminal devices for connection, so as to receive the audio data sent by the terminal device and play the audio data.

The present application will be described in detail below with reference to specific embodiments.

In one embodiment, as shown in FIG. 4 , a buffer capacity determination method is proposed, which can be implemented by relying on a computer program, and can be run on a Bluetooth playback device with an audio playback function. The computer program can be integrated into an application or run as a stand-alone utility application.

Specifically, the cache capacity determination method includes:

S101, obtaining sampling parameters for audio data transmission within the historical sampling duration;

According to some embodiments, the sampling duration refers to the duration during which the Bluetooth playback device obtains the sampling parameters for audio data transmission, and the sampling duration does not specifically refer to a certain fixed sampling duration. For example, when the Bluetooth playback device receives a modification instruction for the sampling duration, the Bluetooth playback device may modify the sampling duration based on the duration modification instruction. The duration modification instruction includes, but is not limited to, a voice duration modification instruction, a click duration modification instruction, a text duration modification instruction, and the like. The duration modification instruction may also be a modification instruction input by the user at the terminal device and sent by the terminal device to the Bluetooth playback device.

It is easy to understand that the historical sampling duration refers to the sampling duration before the current connection ends. The historical sampling duration may be determined based on a user's duration setting instruction.

According to some embodiments, the audio data refers to audio data transmitted from the terminal to the Bluetooth playback device when the Bluetooth playback device is connected to the terminal. When the Bluetooth playback device receives the audio data, the Bluetooth playback device can play the audio data. The audio data does not specifically refer to a certain fixed audio data. For example, every time the terminal is connected to the Bluetooth playback device, the terminal may send audio data corresponding to the audio playback instruction to the Bluetooth playback device based on the acquired audio playback instruction of the user. The audio playback instructions include but are not limited to voice audio playback instructions, click audio playback instructions, and timing audio playback instructions.

It is easy to understand that audio data transmission refers to a process in which the Bluetooth playback device receives audio data transmitted by the terminal and plays the audio data when the terminal is connected to the Bluetooth playback device. The audio data transmission does not specifically refer to a certain transmission process, that is, the audio data transmission can be, for example, a process in which a terminal device and a Bluetooth playback device are connected multiple times for audio data transmission within a historical sampling period, or a terminal device and a Bluetooth playback device. The process of connecting a device once for audio data transmission within the historical sampling period.

Optionally, the sampling parameters refer to parameters obtained by sampling in all audio data transmissions within the historical sampling duration. The sampling parameter does not specifically refer to a fixed sampling parameter. When the historical sampling duration changes, the sampling parameters will also change accordingly. When the audio data transmission changes, the sampling parameter also changes accordingly.

According to some embodiments, when the Bluetooth playback device determines the buffer capacity of the audio data when connecting with the terminal device next time, the Bluetooth playback device can obtain the sampling parameters of audio data transmission within the historical sampling duration.

S102, if the number of sampling parameters is greater than or equal to the number threshold, obtain stability parameters of audio data transmission within the historical sampling duration based on the sampling parameters;

According to some embodiments, the number of sampling parameters refers to the number of sampling parameters of audio data transmission acquired by the Bluetooth playback device within the historical sampling duration. The number of sampling parameters does not specifically refer to a fixed number. For example, when the historical sampling duration changes, the number of the sampling parameters also changes accordingly. When the audio data transmission changes, the number of this sampling parameter changes accordingly.

Optionally, the quantity threshold refers to a critical value corresponding to the quantity of sampling parameters. The quantity threshold does not specifically refer to a fixed value. The quantity threshold may be modified, for example, based on a user's threshold modification instruction. For example, the quantity threshold may also be positively correlated with the historical sampling duration, that is, the longer the historical sampling duration, the larger the numerical value of the quantity threshold.

It is easy to understand that the stability parameter is used to represent the stability in the transmission of audio data. Among them, the stability parameter is in one-to-one correspondence with audio data transmission. The stability parameter does not specifically refer to a fixed parameter. When the audio data transmission changes, the stability parameter of the audio data transmission also changes accordingly.

According to some embodiments, when the Bluetooth playback device determines the buffer capacity of the audio data when connecting with the terminal device next time, the Bluetooth playback device can obtain the sampling parameters of audio data transmission within the historical sampling duration. When the Bluetooth playback device acquires the sampling parameters for audio data transmission, the Bluetooth playback device can acquire the number of sampling parameters. When the Bluetooth playback device obtains the number of sampling parameters, the Bluetooth playback device can detect whether the number of sampling parameters is greater than the number threshold. If the Bluetooth playback device determines that the number of sampling parameters is greater than the number threshold, the Bluetooth playback device may obtain the stability parameter of audio data transmission based on the sampling parameters.

S103: Obtain a target buffer capacity according to the stability parameter, where the target buffer capacity is the buffer capacity of audio data when the Bluetooth playback device and the terminal device are next connected.

According to some embodiments, according to some embodiments, the buffer capacity is used to represent the buffer capacity of audio data when the Bluetooth playback device is connected with the terminal device. The buffer area corresponding to the buffer capacity is used to buffer the audio data received by the Bluetooth playback device. The size of the buffer capacity affects the amount of data buffered for audio data. The larger the buffer capacity is, the more the audio data can be buffered by the Bluetooth playback device.

It is easy to understand that the target buffer capacity is the buffer capacity of the audio data when the Bluetooth playback device and the terminal device are next connected. The target cache size does not specifically refer to a fixed cache size. When the stability parameter obtained by the Bluetooth playback device changes, the target cache capacity also changes accordingly.

According to some embodiments, if the Bluetooth playback device determines that the number of sampling parameters is greater than the number threshold, the Bluetooth playback device may acquire a stability parameter of audio data transmission based on the sampling parameters. When the Bluetooth playback device obtains the stability parameter of audio data transmission, the Bluetooth playback device can obtain the target capacity according to the stability parameter of audio data transmission, that is, the Bluetooth playback device can determine the Bluetooth playback device and the terminal according to the stability parameter of audio data transmission. The buffer capacity of audio data when the device is next connected.

In one or more embodiments of the present application, by acquiring the sampling parameters of audio data transmission within the historical sampling duration, if the number of sampling parameters is greater than or equal to the number threshold, the sampling parameters of the audio data transmission in the historical sampling duration are acquired based on the sampling parameters The stability parameter is to obtain the target cache capacity according to the stability parameter, and the target cache capacity is the cache capacity of the audio data when the Bluetooth playback device and the terminal device are next connected. Therefore, only when the number of sampling parameters is greater than or equal to the number threshold, the target cache capacity can be dynamically determined based on the stability parameters. There is no need to perform a large number of tests to determine the fixed cache capacity, which can reduce the high consumption of test resources and reduce test resources. At the same time, there is no need to identify the transmission situation after each audio data playback, which can reduce the lag in the adjustment of the buffer capacity, and can take into account the delay and anti-interference in the audio data transmission process, which can reduce the amount of test resources. At the same time, the accuracy and efficiency of cache capacity determination are improved. Secondly, when the terminal device changes, the Bluetooth playback device can re-determine the target cache capacity, and can take into account the stability of using different bit rates when connecting with different terminal devices.

Referring to FIG. 5 , a schematic flowchart of a method for determining a cache capacity is provided in an embodiment of the present application. As shown in FIG. 5 , an embodiment of the present invention describes a specific process of a method for determining a buffer capacity from the side of a Bluetooth playback device, and the method includes the following S201-S204.

S201, obtaining sampling parameters for audio data transmission within the historical sampling duration;

The specific process is as described above and will not be repeated here.

According to some embodiments, the audio data transfer may include at least one audio data transfer process. Wherein, an audio data transmission process may be an audio file transmission process, and may also be an entire process of audio data transmission performed by connecting a Bluetooth playback device and a terminal device once.

According to some embodiments, when the Bluetooth playback device acquires the sampling parameters of audio data transmission within the historical sampling duration, the Bluetooth playback device may acquire parameter information of the audio data transmission within several unit durations within the historical sampling duration. The parameter information includes at least one of the number of times of playback freezes, a signal strength value, a transmission interval length of an audio data packet, and a retransmission rate of the audio data packet. According to the parameter information in several unit durations and the weight coefficients corresponding to the parameter information, the Bluetooth playback device can acquire several sampling parameters corresponding to several unit durations.

It is easy to understand that the unit duration refers to a certain quantitative duration of parameter information acquisition, and the unit duration does not specifically refer to a certain fixed duration. The unit duration can be set according to the duration setting instruction. The duration setting instructions include, but are not limited to, voice duration setting instructions, click duration setting instructions, text duration setting instructions, and the like. The unit duration is the duration included in the audio data transmission duration. The number refers to the number of unit durations included in the current audio data transmission process.

Optionally, the number of times the playback freezes refers to the number of times the audio data freezes within a unit time when the Bluetooth playback device receives the audio data transmitted by the terminal device and plays the audio data during the last audio data transmission. The information strength value refers to the strength value when the Bluetooth playback device receives the audio data transmitted by the terminal device during the last audio data transmission process. The transmission interval duration of an audio data packet refers to the transmission interval duration of two adjacent audio data packets within a unit duration in the last audio data transmission process. For example, the interval duration of the audio data packets may be the duration between the transmission time point of the first audio data packet and the transmission time point of the second audio data packet. The transmission interval duration of the audio data packets may be an average value of the transmission interval durations of the audio data packets, or may be a median value of the transmission interval durations of the audio data packets, or the like. The retransmission rate of audio data packets refers to the probability that the retransmitted audio data packets account for all transmitted audio data packets during the last audio data transmission process.

According to some embodiments, the weight coefficient refers to a weight coefficient corresponding to parameter information, and different parameter information corresponds to different weight coefficients. The weight coefficient may be set according to the coefficient setting instruction, and may also be adjusted according to the coefficient adjustment instruction.

It is easy to understand that several sampling parameters refer to sampling parameters corresponding to several unit durations, that is, one sampling parameter corresponding to one unit duration. The sampling parameter does not specifically refer to a fixed sampling parameter. When the parameter information obtained by the Bluetooth playback device changes or the weight coefficient corresponding to the parameter information changes within a unit time, the sampling parameter will also change accordingly.

Optionally, the several unit durations may be, for example, Q1 unit duration, Q2 unit duration, Q3 unit duration, and Q4 unit duration. For example, when the parameter information obtained by the Bluetooth playback device in several unit durations includes the number of playback freezes, the signal strength value and the transmission interval duration of the audio data packets, the Bluetooth playback device can obtain several unit durations according to formula (1). sampling parameters.

S=K ₁ N+K ₂ (RR _I )+K ₃ (II _V ) ² (1)

Among them, S is the sampling parameter;

K ₁ is the weight coefficient corresponding to the number of times of playback freezes;

N is the number of freezes played within a unit time;

K ₂ is the weight coefficient corresponding to the signal strength value;

R is the signal strength value corresponding to the unit duration;

R _i is the standard value of the signal strength value;

K ₃ is the weight coefficient corresponding to the transmission interval duration of the audio data packet;

I is the transmission interval duration of the audio data packet corresponding to the unit duration;

I _v is the average value of the transmission interval duration of the audio data packets corresponding to the unit duration.

It is easy to understand that, for example, when the parameter information obtained by the Bluetooth playback device in several units of time includes the number of playback freezes, the signal strength value, the transmission interval of audio data packets, and the retransmission rate of audio data packets, Bluetooth playback The device can obtain sampling parameters corresponding to several unit durations according to formula (2).

S=K ₁ N+K ₂ (RR _I )+K ₃ (II _V ) ² +K ₄ A (2)

Among them, S is the sampling parameter;

K ₁ is the weight coefficient corresponding to the number of times of playback freezes;

N is the number of freezes played within a unit time;

K ₂ is the weight coefficient corresponding to the signal strength value;

R is the signal strength value corresponding to the unit duration;

R _i is the standard value of the signal strength value;

K ₃ is the weight coefficient corresponding to the transmission interval duration of the audio data packet;

I is the transmission interval duration of the audio data packet corresponding to the unit duration;

I _v is the average value of the transmission interval duration of the audio data packet corresponding to the unit duration;

K ₄ is the weight coefficient corresponding to the retransmission rate of the audio data packet;

A is the retransmission rate of the audio data packet corresponding to the unit duration.

S202, if the quantity of sampling parameters is greater than or equal to the quantity threshold, obtain stability parameters of audio data transmission within the historical sampling duration based on the sampling parameters;

The specific process is as described above and will not be repeated here.

According to some embodiments, if the number of sampling parameters is greater than or equal to the number threshold, the Bluetooth playback device acquires stability parameters of audio data transmission within the historical sampling duration based on the sampling parameters. Specifically, if the number of sampling parameters is greater than or equal to the number threshold, the Bluetooth playback device may filter several sampling parameters according to a preset method to obtain filtered sampling parameters. When the Bluetooth playback device obtains the filtered sampling parameters, the Bluetooth playback device can calculate the average sampling parameter of the filtered sampling parameters, and use the average sampling parameter as the stability parameter of audio data transmission within the historical sampling duration.

According to some embodiments, FIG. 6 shows an example schematic diagram of a Bluetooth playback device storing sampling parameters according to an embodiment of the present application. As shown in Figure 6, when the Bluetooth playback device obtains the q1 sampling parameters corresponding to the Q1 unit duration, the q2 sampling parameters corresponding to the Q2 unit duration, the q3 sampling parameters corresponding to the Q3 unit duration, and the q4 sampling parameters corresponding to the Q4 unit duration, the Bluetooth The playback device can calculate the average sampling parameter of the q1 sampling parameter corresponding to the Q1 unit duration, the q2 sampling parameter corresponding to the Q2 unit duration, the q3 sampling parameter corresponding to the Q3 unit duration, and the q4 sampling parameter corresponding to the Q4 unit duration, for example, it can be the q5 sampling parameter. . The Bluetooth playback device can set the q5 sampling parameter as the stability parameter of audio data transmission within the historical sampling duration.

Optionally, when the Bluetooth playback device calculates the average sampling parameters of the filtered sampling parameters, the average sampling parameters include but are not limited to arithmetic mean sampling parameters, geometric mean sampling parameters, square mean sampling parameters, harmonic mean sampling parameters, weighted mean sampling parameters Average sampling parameters, etc.

It is easy to understand that when the average sampling parameter of the filtered sampling parameters calculated by the Bluetooth playback device is an arithmetic average sampling parameter, the Bluetooth playback device can calculate the sum of the filtered sampling parameters, and obtain the number of parameters of the filtered sampling parameters. The Bluetooth playback device may divide the sum of the filtered sampling parameters by the number of parameters of the filtered sampling parameters to obtain the arithmetic average sampling parameter.

It is easy to understand that when the Bluetooth playback device obtains the sampling parameters within 15 unit durations, the Bluetooth playback device can sort the sampling parameters within the 15 unit durations. For example, the Bluetooth playback device can sort the sampling parameters within 15 units of time in the order of parameter values from small to large, and filter out the preset number of five sampling parameters to obtain the filtered sampling parameters, that is, the terminal can get 10 sampling parameters. The Bluetooth playback device can calculate the average sampling parameter of the 10 filtered sampling parameters, and use the average sampling parameter as the stability parameter in the current audio data transmission process.

S203, obtain the current cache capacity;

According to some embodiments, the current buffer capacity is the buffer capacity of audio data when the Bluetooth playback device and the terminal device are currently connected. The current cache capacity may be set by the Bluetooth playback device based on a user's capacity setting instruction, or may be determined by the Bluetooth playback device before the historical sampling duration when the Bluetooth playback device is currently connected. The current cache capacity does not specifically refer to a fixed cache capacity. When the Bluetooth playback device receives the user's capacity modification instruction, the Bluetooth playback device can modify the current cache capacity. For example, when the Bluetooth playback device determines that the historical sampling duration of the current cache capacity changes, the current cache capacity also changes accordingly.

It is easy to understand that when the Bluetooth headset and the smartphone are currently connected, the current cache capacity obtained by the Bluetooth headset may be, for example, 5Mb.

S204: Adjust the current cache capacity according to the stability parameter to obtain the target cache capacity.

According to some embodiments, when the Bluetooth playback device obtains the current cache capacity, the Bluetooth playback device may adjust the current cache capacity according to the stability parameter to obtain the target cache capacity.

According to some embodiments, when the Bluetooth playback device adjusts the current cache capacity according to the stability parameter to obtain the target cache capacity, the Bluetooth playback device can obtain the current parameter level corresponding to the current cache capacity. When the Bluetooth playback device obtains the current parameter level, the Bluetooth playback device can obtain the stable parameter threshold. The Bluetooth playback device can adjust the current parameter level according to the stability parameter threshold and the stability parameter to obtain the target parameter level, and obtain the buffer capacity corresponding to the target parameter level in the capacity mapping information as the target buffer capacity.

It is easy to understand that the current parameter level refers to the parameter level corresponding to the current buffer capacity when the Bluetooth playback device and the terminal device are currently connected for audio data transmission. The current parameter level does not specifically refer to a fixed parameter level. When the current cache capacity changes, the current parameter level also changes accordingly.

Optionally, the stable parameter threshold refers to a parameter threshold corresponding to the parameter level. The stable parameter threshold may be, for example, a parameter threshold corresponding to each parameter level. The stable parameter threshold does not specifically refer to a fixed parameter threshold. The number of stabilization parameter thresholds is at least one. The stable parameter threshold may, for example, vary as the parameter level changes.

It is easy to understand that, for example, when the current parameter level is the C parameter level, the stable parameter threshold may be, for example, a C1 stable parameter threshold and a C2 stable parameter threshold, wherein the C1 stable parameter threshold is smaller than the C2 stable parameter threshold. For example, when the current parameter level is the D parameter level, the stable parameter threshold may be, for example, the D1 stable parameter threshold, the D2 stable parameter threshold, and the D3 stable parameter threshold, where the D1 stable parameter threshold is smaller than the D2 stable parameter threshold, and the D2 stable parameter threshold is smaller than the D3 stable parameter threshold. parameter threshold.

It is easy to understand that the target parameter level refers to the parameter level adjusted by the Bluetooth playback device to the current parameter level. The target parameter level does not specifically refer to a fixed parameter level. When the stability parameter and the stability parameter threshold change, the target parameter level also changes accordingly. The target parameter level may differ from the current parameter level by at least one parameter level. For example, the target parameter level may be one level higher than the current parameter level in the parameter level sorting, and the target parameter level may be three levels higher than the current parameter level in the parameter level sorting.

Optionally, the capacity mapping information refers to a set including a parameter level and a cache capacity corresponding to the parameter level. The capacity mapping information does not specifically refer to a certain fixed capacity mapping information. The capacity mapping information may, for example, change with the user's information setting instruction. The information setting instructions include, but are not limited to, voice information setting instructions, click information setting instructions, timing information setting instructions, and the like.

According to some embodiments, when the Bluetooth playback device determines that the audio data playback stability is poor, the Bluetooth playback device can increase the audio data buffer, that is, the Bluetooth playback device can increase the buffer capacity to improve the audio data playback stability. When the Bluetooth playback device determines that the playback stability of the audio data is good, the Bluetooth playback device can reduce the audio data buffering, that is, the Bluetooth playback device can reduce the buffer capacity so as to reduce the delay of the audio data playback. Therefore, the parameter level included in the capacity mapping information and the cache capacity corresponding to the parameter level may be negatively correlated, that is, the higher the parameter level, the smaller the cache capacity corresponding to the parameter level.

It is easy to understand that, when the Bluetooth playback device only adjusts the current parameter level by one level, the stability of the adjustment of the cache capacity can be improved by reducing the situation that the cache capacity is too large to make the cache capacity unstable. For example, when the Bluetooth headset and the smartphone are currently connected, the current buffer capacity obtained by the Bluetooth headset may be, for example, 5Mb and the stability parameter of audio data transmission may be, for example, 0.7. The current parameter level corresponding to the current cache capacity obtained by the Bluetooth headset may be, for example, the E3 parameter level. When the Bluetooth playback device obtains the current parameter level, the Bluetooth playback device can obtain the stable parameter threshold. The stability parameter threshold may be, for example, the stability parameter threshold corresponding to the E1 parameter level is 0.5, the stability parameter threshold corresponding to the E2 parameter level is 0.65, the stability parameter threshold corresponding to the E3 parameter level is 0.8, and the stability parameter corresponding to the E4 parameter level is 0.8. The parameter threshold is 0.9. The Bluetooth playback device can adjust the current parameter level E3 parameter level according to the stability parameter threshold and the stability parameter to obtain the target parameter level as the E2 parameter level.

It is easy to understand that the capacity mapping information of the Bluetooth headset can be, for example, the cache capacity corresponding to the E1 parameter level is 15Mb, the cache capacity corresponding to the E2 parameter level is 10Mb, the cache capacity corresponding to the E3 parameter level is 5Mb, and the cache capacity corresponding to the E4 parameter level is The capacity is 2Mb. Therefore, the Bluetooth headset obtains a cache capacity of 10Mb corresponding to the E2 parameter level in the capacity mapping information as the target cache capacity.

It is easy to understand that when the Bluetooth playback device can adjust the current parameter level according to the stability parameter threshold and stability parameter to obtain the target parameter level, the current parameter level can be adjusted in multiple levels, that is, the target parameter level and the current parameter level can be different by more than one level. parameter level. When the Bluetooth playback device obtains the target capacity level, the Bluetooth playback device can obtain the cache capacity corresponding to the target parameter level in the capacity mapping information as the target cache capacity, which can improve the accuracy of the determination of the cache capacity.

Optionally, for example, when the Bluetooth headset and the smartphone are currently connected, the current buffer capacity obtained by the Bluetooth headset may be, for example, 5Mb and the stability parameter of audio data transmission may be, for example, 0.4. The current parameter level corresponding to the current cache capacity obtained by the Bluetooth headset may be, for example, the E3 parameter level. When the Bluetooth playback device obtains the current parameter level, the Bluetooth playback device can obtain the stable parameter threshold. The stability parameter threshold may be, for example, the stability parameter threshold corresponding to the E1 parameter level is 0.5, the stability parameter threshold corresponding to the E2 parameter level is 0.65, the stability parameter threshold corresponding to the E3 parameter level is 0.8, and the stability parameter corresponding to the E4 parameter level is 0.8. The parameter threshold is 0.9. The Bluetooth playback device can adjust the current parameter level E3 parameter level according to the stability parameter threshold and the stability parameter to obtain the target parameter level as the E1 parameter level.

It is easy to understand that the capacity mapping information of the Bluetooth headset can be, for example, the cache capacity corresponding to the E1 parameter level is 15Mb, the cache capacity corresponding to the E2 parameter level is 10Mb, the cache capacity corresponding to the E3 parameter level is 5Mb, and the cache capacity corresponding to the E4 parameter level is The capacity is 2Mb. Therefore, the Bluetooth headset obtains the cache capacity of 15Mb corresponding to the E1 parameter level in the capacity mapping information as the target cache capacity.

According to some embodiments, when the Bluetooth playback device adjusts the current parameter level according to the stability parameter threshold and the stability parameter to obtain the target parameter level, the Bluetooth playback device may obtain the current parameter level, the first parameter level and the second parameter level in the parameter level sorting. parameter level. When the Bluetooth playback device acquires the first parameter level and the second parameter level, the Bluetooth playback device may acquire the first stable parameter threshold corresponding to the first parameter level, and acquire the second stable parameter threshold corresponding to the second parameter level. The first parameter level is one level higher than the current parameter level in the parameter level sorting, the second parameter level is one level lower than the current parameter level in the parameter level sorting, and the first stable parameter threshold is greater than the second stable parameter threshold. The first parameter level does not specifically refer to a fixed parameter level, and when the current parameter level changes, the first parameter level also changes accordingly. The second parameter level also does not specifically refer to a fixed parameter level. When the current parameter level changes, the second parameter level also changes accordingly.

According to some embodiments, the parameter level sorting refers to the parameter level sorting obtained by sorting the parameter levels in a preset order. The preset order may be, for example, a high-to-low order, or a low-to-high order. The preset order of this implementation may be, for example, a low-to-high order. For example, when the Bluetooth playback device receives a sorting instruction that carries preset sequence information, the Bluetooth playback device can sort the parameter levels based on the preset sequence information carried by the sorting instruction.

According to some embodiments, the ordering instruction obtained by the Bluetooth playback device may be, for example, sorting the E1 parameter level, the E4 parameter level, the E6 parameter level, the E5 parameter level, the E2 parameter level, the E3 parameter level, and the E7 parameter level in order from low to high. Sort by level. The parameter level order obtained by the Bluetooth playback device may be, for example, the E1 parameter level, the E2 parameter level, the E3 parameter level, the E4 parameter level, the E5 parameter level, the E6 parameter level, and the E7 parameter level.

Optionally, the Bluetooth headset may obtain the current parameter level in the parameter level sorting, for example, the E3 parameter level, the first parameter level may be, for example, the E4 parameter level, and the second parameter level may be, for example, the E2 parameter level. When the Bluetooth headset obtains the E4 parameter level and the E2 parameter level, the Bluetooth playback device can obtain the first stability parameter threshold corresponding to the first parameter level, and obtain the second stability parameter threshold corresponding to the second parameter level. The stability parameter threshold corresponding to the E4 parameter level obtained by the Bluetooth headset may be, for example, 0.9. The stability parameter threshold corresponding to the E2 parameter level obtained by the Bluetooth headset may be, for example, 0.65.

According to some embodiments, when the Bluetooth playback device adjusts the current parameter level according to the stability parameter threshold and the stability parameter to obtain the target parameter level, the Bluetooth playback device can adjust the current parameter level according to the stability parameter threshold and the stability parameter. The current parameter level is adjusted to obtain the target parameter level. When the stability parameter is greater than the first stability parameter threshold, the Bluetooth playback device may determine that the first parameter level is the target parameter level, and adjust the current parameter level to obtain the target parameter level. When the stability parameter is less than the second stability parameter threshold, the Bluetooth playback device may determine that the second parameter level is the target parameter level, and adjust the current parameter level to obtain the target parameter level. When the stability parameter is greater than or equal to the second stability parameter threshold and less than or equal to the first stability parameter threshold, the Bluetooth playback device may determine that the current parameter level is the target parameter level.

It is easy to understand that the Bluetooth playback device can first determine the relationship between the stability parameter and the threshold of the first stability parameter, and then determine the relationship between the stability parameter and the threshold of the second stability parameter. The Bluetooth playback device can also first determine the relationship between the stability parameter and the threshold of the second stability parameter. The size relationship of the second stability parameter threshold, and then to determine the size relationship between the stability parameter and the first stability parameter threshold, the Bluetooth playback device can simultaneously determine the size relationship between the stability parameter, the first stability parameter threshold, and the second stability parameter threshold. FIG. 7 shows a schematic flowchart of a parameter level adjustment method according to an embodiment of the present application. In this embodiment, the Bluetooth playback device may, for example, first determine the magnitude relationship between the stability parameter and the first stability parameter threshold, and then determine the magnitude relationship between the stability parameter and the second stability parameter threshold.

Optionally, the Bluetooth headset may obtain the current parameter level in the parameter level sorting, for example, the E3 parameter level, the first parameter level may be, for example, the E4 parameter level, and the second parameter level may be, for example, the E2 parameter level. When the Bluetooth headset obtains the E4 parameter level and the E2 parameter level, the Bluetooth playback device can obtain the first stability parameter threshold corresponding to the first parameter level, and obtain the second stability parameter threshold corresponding to the second parameter level. The stability parameter threshold corresponding to the E4 parameter level obtained by the Bluetooth headset may be, for example, 0.9. The stability parameter threshold corresponding to the E2 parameter level obtained by the Bluetooth headset may be, for example, 0.65.

According to some embodiments, when the stability parameter of the audio data transmission obtained by the Bluetooth headset is 0.95, the Bluetooth headset can determine that the stability parameter 0.95 is greater than the first stability parameter threshold 0.9, and the Bluetooth playback device can determine the E4 parameter level as the target parameter level, and adjust the current parameter level E3 to obtain the target parameter level E4 parameter level.

It is easy to understand that when the stability parameter of the audio data transmission obtained by the Bluetooth headset is 0.55, the Bluetooth headset can determine that when the stability parameter 0.55 is less than the second stability parameter threshold 0.65, the Bluetooth playback device can determine the E2 parameter level as the target parameter. level, and adjust the current parameter level E3 to obtain the target parameter level E2 parameter level.

According to some embodiments, when the Bluetooth playback device is a device with a display screen, after the Bluetooth playback device adjusts the current cache capacity according to the stability parameter to obtain the target cache capacity, the Bluetooth playback device can send out prompt information, where the prompt information is used to prompt Target cache capacity. For example, when the Bluetooth playback device is a Bluetooth watch, and the Bluetooth watch adjusts the current cache capacity according to the stability parameter to obtain a target cache capacity of 10Mb, the Bluetooth watch can display a prompt message on the display. The prompt information may be, for example, that the target cache capacity is 10Mb. At this time, an example schematic diagram of the interface of the Bluetooth watch may be as shown in FIG. 8 .

It is easy to understand that when the Bluetooth playback device obtains the audio data sent by the terminal device and caches the audio data in the cache area corresponding to the target cache capacity, the Bluetooth playback device can detect whether the cache capacity corresponding to the audio data is sufficient for audio data playback. condition. If the buffer capacity corresponding to the audio data satisfies the audio data playback conditions, the Bluetooth playback device can play the audio data. When the cache capacity is too high, the delay will be high, and when the cache capacity is too low, the anti-interference ability will be poor. Therefore, the target cache capacity in this embodiment of the present application is determined by the Bluetooth playback device based on the target bit rate level, which can be When the Bluetooth playback device plays audio data, it is possible to take into account the delay and anti-interference in the process of audio data transmission, so as to improve the user experience.

In one or more embodiments of the present application, the sampling parameters of audio data transmission are acquired within the historical sampling duration, and if the number of sampling parameters is greater than or equal to the number threshold, the stability of audio data transmission in the historical sampling duration is acquired based on the sampling parameters Therefore, only when the number of sampling parameters is greater than or equal to the number threshold, the stability parameters will be obtained, and there is no need to conduct a large number of tests to determine the fixed cache capacity and reduce the high consumption of test resources. In addition, the Bluetooth playback device can obtain the current cache capacity, and adjust the current cache capacity according to the stability parameters to obtain the target cache capacity, which can optimize the impact of different interference conditions on the cache capacity, reduce the inaccuracy of directly adjusting the cache capacity, and improve the cache capacity. The accuracy of capacity determination.

The apparatus for determining the cache capacity provided by the embodiment of the present application will be described in detail below with reference to FIGS. 9-11 . It should be noted that the apparatuses for determining cache capacity shown in FIG. 9-11 are used to execute the methods of the embodiments shown in FIG. 4-FIG. 8 of the present application. For the convenience of description, only those related to the embodiments of the present application are shown. For some, specific technical details are not disclosed, please refer to the embodiments shown in FIG. 4 to FIG. 8 of the present application.

Please refer to FIG. 9 , which shows a schematic structural diagram of an apparatus for determining a cache capacity according to an embodiment of the present application. The buffer capacity determining apparatus 900 may be implemented by software, hardware or a combination of the two to become all or a part of the user terminal. According to some embodiments, the cache capacity determination device 900 includes a sampling parameter obtaining unit 901, a stability parameter obtaining unit 902 and a cache capacity obtaining unit 903, which are specifically used for:

Sampling parameter obtaining unit 901, used for obtaining the sampling parameter of audio data transmission within the historical sampling duration;

Stability parameter obtaining unit 902, for if the quantity of sampling parameter is greater than or equal to the quantity threshold, then obtain the stability parameter of audio data transmission within the historical sampling duration based on sampling parameter;

The buffer capacity obtaining unit 903 is configured to obtain the target buffer capacity according to the stability parameter, where the target buffer capacity is the buffer capacity of the audio data when the Bluetooth playback device and the terminal device are next connected.

According to some embodiments, FIG. 10 shows a schematic structural diagram of an apparatus for determining a cache capacity according to an embodiment of the present application. As shown in FIG. 10 , the cache capacity acquisition unit 903 includes a capacity acquisition subunit 913 and a capacity adjustment subunit 923. The cache capacity acquisition unit 903 is used to acquire the target cache capacity according to the stability parameter:

The capacity acquisition subunit 913 is used to obtain the current buffer capacity; the current buffer capacity is the buffer capacity of the audio data when the Bluetooth playback device and the terminal device are currently connected;

The capacity adjustment subunit 923 is configured to adjust the current cache capacity according to the stability parameter to obtain the target cache capacity.

According to some embodiments, the capacity adjustment subunit 923 is configured to adjust the current cache capacity according to the stability parameter to obtain the target cache capacity, and is specifically configured to:

Get the current parameter level corresponding to the current cache capacity;

Adjust the current parameter level according to the stability parameter threshold and stability parameter to obtain the target parameter level;

The cache capacity corresponding to the target parameter level is obtained from the capacity mapping information as the target cache capacity.

According to some embodiments, the capacity adjustment subunit 923 is configured to adjust the current parameter level according to the stability parameter threshold and the stability parameter to obtain the target parameter level, specifically:

Obtain the current parameter level, the first parameter level and the second parameter level in the parameter level sorting;

acquiring a first stable parameter threshold corresponding to the first parameter level, and acquiring a second stable parameter threshold corresponding to the second parameter level;

The first parameter level is one level higher than the current parameter level in the parameter level sorting, the second parameter level is one level lower than the current parameter level in the parameter level sorting, and the first stable parameter threshold is greater than the second stable parameter threshold.

According to some embodiments, the capacity adjustment subunit 923 is configured to adjust the current parameter level according to the stability parameter threshold and the stability parameter to obtain the target parameter level, specifically:

When the stability parameter is greater than the first stability parameter threshold, determining the first parameter level as the target parameter level, and adjusting the current parameter level to obtain the target parameter level;

When the stability parameter is less than the second stability parameter threshold, determining the second parameter level as the target parameter level, and adjusting the current parameter level to obtain the target parameter level;

When the stability parameter is greater than or equal to the second stability parameter threshold and less than or equal to the first stability parameter threshold, it is determined that the current parameter level is the target parameter level.

According to some embodiments, FIG. 11 shows a schematic structural diagram of an apparatus for determining a cache capacity according to an embodiment of the present application. As shown in FIG. 11 , the sampling parameter obtaining unit 901 includes an information obtaining subunit 911 and a parameter obtaining subunit 921. The sampling parameter obtaining unit 901 is used to obtain the sampling parameters of audio data transmission within the historical sampling duration:

The information acquisition subunit 911 is used to acquire the parameter information of the audio data transmission in several unit time lengths within the historical sampling time length; at least one of the retransmission rates of the packet;

The parameter acquisition subunit 921 is configured to acquire several sampling parameters corresponding to several unit durations according to the parameter information in several unit durations and the weight coefficients corresponding to the parameter information.

According to some embodiments, the parameter obtaining subunit 921 is used for obtaining stability parameters of audio data transmission within the historical sampling duration based on the sampling parameters if the number of sampling parameters is greater than or equal to the number threshold, and is specifically used for:

If the number of sampling parameters is greater than or equal to the number threshold, filter several sampling parameters according to a preset method to obtain the filtered sampling parameters;

Calculate the average sampling parameter of the filtered sampling parameters, and use the average sampling parameter as the stability parameter of audio data transmission within the historical sampling duration.

In one or more embodiments of the present application, the sampling parameter acquisition unit acquires the sampling parameters of audio data transmission within the historical sampling duration. If the number of sampling parameters is greater than or equal to the number threshold, the stability parameter acquisition unit is based on the sampling parameters. The stability parameter of audio data transmission within the historical sampling duration is obtained, and the buffer capacity acquisition unit can obtain the target buffer capacity according to the stability parameter, and the target buffer capacity is the buffer capacity of the audio data when the Bluetooth playback device and the terminal device are next connected. Therefore, only when the number of sampling parameters is greater than or equal to the number threshold, the target cache capacity can be dynamically determined based on the stability parameters. There is no need to perform a large number of tests to determine the fixed cache capacity, which can reduce the high consumption of test resources and reduce test resources. At the same time, there is no need to identify the transmission situation after each audio data playback, which can reduce the lag in the adjustment of the buffer capacity, and can take into account the delay and anti-interference in the audio data transmission process, which can reduce the amount of test resources. At the same time, the accuracy and efficiency of cache capacity determination are improved.

An embodiment of the present application further provides a computer storage medium, where the computer storage medium can store a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing the above-described embodiments shown in FIG. 4 to FIG. 8 . For the specific execution process of the cache capacity determination method, reference may be made to the specific descriptions of the embodiments shown in FIG. 4 and FIG. 8 , which will not be repeated here.

The present application also provides a computer program product, the computer program product stores at least one instruction, the at least one instruction is loaded by the processor and executes the cache capacity of the embodiment shown in the above-mentioned FIG. 4-FIG. 8 For the determination method and the specific execution process, reference may be made to the specific descriptions of the embodiments shown in FIG. 4 to FIG. 8 , which will not be repeated here.

Please refer to FIG. 12 , which is a schematic structural diagram of a Bluetooth playback device according to an embodiment of the present application. As shown in FIG. 12 , the Bluetooth playback device 1200 may include: at least one processor 1201 , at least one network interface 1204 , user interface 1203 , memory 1205 , and at least one communication bus 1202 .

Among them, the communication bus 1202 is used to realize the connection communication between these components.

The user interface 1203 may include a speaker, and the optional user interface 1203 may also include a standard wired interface and a wireless interface.

Wherein, the network interface 1204 may optionally include a standard wired interface and a wireless interface (eg, a WI-FI interface).

The processor 1201 may include one or more processing cores. The processor 1201 uses various excuses and lines to connect various parts of the entire Bluetooth playback device 1200, and by running or executing the instructions, programs, code sets or instruction sets stored in the memory 1205, and calling the data stored in the memory 1205, Various functions of the Bluetooth playback device 1200 are executed and data is processed. Optionally, the processor 1201 may employ at least one of digital signal processing (Digital Signal Processing, DSP), field-programmable gate array (Field-Programmable Gate Array, FPGA), and programmable logic array (Programmable Logic Array, PLA). implemented in hardware. The processor 1201 may integrate one or a combination of a central processing unit (Central Processing Unit, CPU), a graphics processing unit (Graphics Processing Unit, GPU), a modem, and the like. Among them, the CPU mainly handles the operating system, user interface, and application programs; the GPU is used to render and draw the content that needs to be displayed on the display screen; the modem is used to handle wireless communication. It can be understood that, the above-mentioned modem may not be integrated into the processor 1201, but is implemented by a single chip.

The memory 1205 may include random access memory (Random Access Memory, RAM), or may include read-only memory (Read-Only Memory). Optionally, the memory 1205 includes a non-transitory computer-readable storage medium. Memory 1205 may be used to store instructions, programs, codes, sets of codes, or sets of instructions. The memory 1205 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), Instructions and the like used to implement the above method embodiments; the storage data area may store the data and the like involved in the above method embodiments. The memory 1205 can optionally also be at least one storage device located away from the aforementioned processor 1201 . As shown in FIG. 12, the memory 1205, which is a computer storage medium, may include an operating system, a network communication module, a user interface module, and an application program for determining the cache capacity.

In the Bluetooth playback device 1200 shown in FIG. 12 , the user interface 1203 is mainly used to provide an input interface for the user to obtain the data input by the user; and the processor 1201 can be used to call the application program stored in the memory 1205 whose cache capacity is determined , and specifically do the following:

Obtain the sampling parameters of audio data transmission within the historical sampling duration;

If the number of sampling parameters is greater than or equal to the number threshold, the stability parameters of audio data transmission within the historical sampling duration are obtained based on the sampling parameters;

The target buffer capacity is obtained according to the stability parameter, and the target buffer capacity is the buffer capacity of the audio data when the Bluetooth playback device and the terminal device are next connected.

According to some embodiments, when the processor 1201 is configured to obtain the target cache capacity according to the stability parameter, the following operations are specifically performed:

Get the current cache capacity; the current cache capacity is the cache capacity of the audio data when the Bluetooth playback device and the terminal device are currently connected;

Adjust the current cache capacity according to the stability parameter to obtain the target cache capacity.

According to some embodiments, when the processor 1201 is configured to adjust the current cache capacity according to the stability parameter to obtain the target cache capacity, the processor 1201 specifically performs the following operations:

Get the current parameter level corresponding to the current cache capacity;

Adjust the current parameter level according to the stability parameter threshold and stability parameter to obtain the target parameter level;

The cache capacity corresponding to the target parameter level is obtained from the capacity mapping information as the target cache capacity. According to some embodiments, the processor 1201 is configured to perform the following operations when the current parameter level is adjusted according to the stability parameter threshold and the stability parameter to obtain the target parameter level:

Obtain the current parameter level, the first parameter level and the second parameter level in the parameter level sorting;

acquiring a first stable parameter threshold corresponding to the first parameter level, and acquiring a second stable parameter threshold corresponding to the second parameter level;

The first parameter level is one level higher than the current parameter level in the parameter level sorting, the second parameter level is one level lower than the current parameter level in the parameter level sorting, and the first stable parameter threshold is greater than the second stable parameter threshold.

According to some embodiments, the processor 1201 is configured to perform the following operations when the current parameter level is adjusted according to the stability parameter threshold and the stability parameter to obtain the target parameter level:

When the stability parameter is greater than the first stability parameter threshold, determining the first parameter level as the target parameter level, and adjusting the current parameter level to obtain the target parameter level;

When the stability parameter is less than the second stability parameter threshold, determining the second parameter level as the target parameter level, and adjusting the current parameter level to obtain the target parameter level;

When the stability parameter is greater than or equal to the second stability parameter threshold and less than or equal to the first stability parameter threshold, it is determined that the current parameter level is the target parameter level.

According to some embodiments, the processor 1201 is configured to perform the following operations when acquiring sampling parameters for audio data transmission within the historical sampling duration:

In the historical sampling duration, the parameter information of the audio data transmission in several unit durations is obtained; the parameter information includes at least one of the number of playback freezes, the signal strength value, the transmission interval length of the audio data packet, and the retransmission rate of the audio data packet ;

According to the parameter information in several unit durations and the weight coefficients corresponding to the parameter information, several sampling parameters corresponding to several unit durations are obtained.

According to some embodiments, the processor 1201 is configured to perform the following operations when obtaining the stability parameter of audio data transmission within the historical sampling duration based on the sampling parameter if the number of sampling parameters is greater than or equal to the number threshold:

If the number of sampling parameters is greater than or equal to the number threshold, filter several sampling parameters according to a preset method to obtain the filtered sampling parameters;

Calculate the average sampling parameter of the filtered sampling parameters, and use the average sampling parameter as the stability parameter of audio data transmission within the historical sampling duration.

In one or more embodiments of the present application, by acquiring the sampling parameters of audio data transmission within the historical sampling duration, if the number of sampling parameters is greater than or equal to the number threshold, the sampling parameters of the audio data transmission in the historical sampling duration are acquired based on the sampling parameters The stability parameter is to obtain the target cache capacity according to the stability parameter, and the target cache capacity is the cache capacity of the audio data when the Bluetooth playback device and the terminal device are next connected. Therefore, only when the number of sampling parameters is greater than or equal to the number threshold, the target cache capacity can be dynamically determined based on the stability parameters. There is no need to perform a large number of tests to determine the fixed cache capacity, which can reduce the high consumption of test resources and reduce test resources. At the same time, there is no need to identify the transmission situation after each audio data playback, which can reduce the lag in the adjustment of the buffer capacity, and can take into account the delay and anti-interference in the audio data transmission process, which can reduce the amount of test resources. At the same time, the accuracy and efficiency of cache capacity determination are improved.

In addition, those skilled in the art can understand that the structure of the terminal shown in the above drawings does not constitute a limitation on the terminal, and the terminal may include more or less components than those shown in the drawings, or combine certain components, Or a different component arrangement. For example, the terminal further includes components such as a radio frequency circuit, an input unit, a sensor, an audio circuit, a wireless fidelity (WiFi) module, a power supply, and a Bluetooth module, which will not be repeated here.

In this embodiment of the present application, the execution body of each step may be the terminal described above. Optionally, the execution body of each step is the operating system of the terminal. The operating system may be an Android system, an IOS system, or other operating systems, which are not limited in this embodiment of the present application.

The terminal according to the embodiment of the present application may also have a display device installed thereon, and the display device may be various devices that can realize a display function, such as a cathode ray tube display (CR), a light-emitting diode display (light-emitting diode display). emitting diode display, referred to as LED), electronic ink screen, liquid crystal display (liquid crystal display, referred to as LCD), plasma display panel (plasma display panel, referred to as PDP) and so on. The user can use the display device on the terminal 100 to view the displayed text, image, video and other information. The terminal may be a smart phone, a tablet computer, a gaming device, an AR (Augmented Reality, augmented reality) device, a car, a data storage device, an audio playback device, a video playback device, a notebook, a desktop computing device, a wearable device such as an electronic watch , electronic glasses, electronic helmets, electronic bracelets, electronic necklaces, electronic clothing and other equipment.

Those skilled in the art can clearly understand that the technical solutions of the present application can be implemented by means of software and/or hardware. The "unit" and "module" in this specification refer to software and/or hardware that can complete a specific function independently or in cooperation with other components, wherein the hardware can be, for example, a Field-Programmable Gate Array (FPGA), Integrated Circuit (IC), etc.

It should be noted that, for the sake of simple description, the foregoing method embodiments are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the described action sequence. Because in accordance with the present application, certain steps may be performed in other orders or concurrently. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation, for example, multiple units or components may be combined or Integration into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some service interfaces, indirect coupling or communication connection of devices or units, and may be in electrical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art, or all or part of the technical solution, and the computer software product is stored in a memory, Several instructions are included to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned memory includes: U disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

Those skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable memory, and the memory can include: flash memory disk, read-only memory (Read-Only Memory, ROM), random access device (Random Access Memory, RAM), magnetic disk or optical disk, etc.

The above descriptions are merely exemplary embodiments of the present disclosure, which cannot limit the scope of the present disclosure. That is, all equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. Other embodiments of the present disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or conventional techniques in the art not described in this disclosure . The specification and examples are to be regarded as exemplary only, and the scope and spirit of the present disclosure are defined by the claims.

Claims (10)

1. A buffer capacity determining method is applied to Bluetooth playing equipment and is characterized by comprising the following steps:

acquiring sampling parameters of audio data transmission within historical sampling duration;

if the number of the sampling parameters is larger than or equal to a number threshold, acquiring stability parameters of audio data transmission in the historical sampling duration based on the sampling parameters;

and acquiring a target cache capacity according to the stability parameter, wherein the target cache capacity is the cache capacity of audio data when the Bluetooth playing device is connected with the terminal device next time.

2. The method of claim 1, wherein obtaining a target cache capacity according to the stability parameter comprises:

acquiring the current cache capacity; the current cache capacity is the cache capacity of audio data when the Bluetooth playing device is currently connected with the terminal device;

and adjusting the current cache capacity according to the stability parameter to obtain a target cache capacity.

3. The method of claim 2, wherein the adjusting the current buffer size according to the stability parameter to obtain a target buffer size comprises:

acquiring a current parameter level corresponding to the current cache capacity;

adjusting the current parameter level according to a stability parameter threshold and the stability parameter to obtain a target parameter level;

and acquiring the cache capacity corresponding to the target parameter level from the capacity mapping information as a target cache capacity.

4. The method of claim 3, wherein the adjusting the current parameter level according to a stability parameter threshold and the stability parameter to obtain a target parameter level comprises:

acquiring a current parameter level, a first parameter level and a second parameter level in the parameter level sequence;

acquiring a first stable parameter threshold corresponding to the first parameter level, and acquiring a second stable parameter threshold corresponding to the second parameter level;

wherein the first parameter level is one level above the current parameter level in the parameter level ordering, the second parameter level is one level below the current parameter level in the parameter level ordering, and the first stability parameter threshold is greater than the second stability parameter threshold.

5. The method of claim 4, wherein the adjusting the current parameter level according to a stability parameter threshold and the stability parameter to obtain a target parameter level comprises:

when the stability parameter is larger than the first stability parameter threshold, determining that the first parameter level is a target parameter level, and adjusting the current parameter level to obtain the target parameter level;

when the stability parameter is smaller than the second stability parameter threshold, determining the second parameter level as the target parameter level, and adjusting the current parameter level to obtain the target parameter level;

and when the stability parameter is greater than or equal to the second stability parameter threshold and less than or equal to the first stability parameter threshold, determining the current parameter level as the target parameter level.

6. The method of claim 1, wherein obtaining sampling parameters for audio data transmission over historical sampling durations comprises:

acquiring parameter information of audio data transmission in a plurality of unit time lengths in historical sampling time lengths; the parameter information comprises at least one of playing pause times, signal intensity values, transmission interval duration of audio data packets and retransmission rates of the audio data packets;

and acquiring a plurality of sampling parameters corresponding to the unit time lengths according to the parameter information in the unit time lengths and the weight coefficients corresponding to the parameter information.

7. The method of claim 6, wherein obtaining the stability parameter of audio data transmission in the historical sampling duration based on the sampling parameter if the number of the sampling parameters is greater than or equal to a number threshold comprises:

if the number of the sampling parameters is larger than or equal to the number threshold, screening the sampling parameters according to a preset mode to obtain the screened sampling parameters;

and calculating the average sampling parameter of the screened sampling parameters, and taking the average sampling parameter as the stability parameter of audio data transmission in the historical sampling duration.

8. An apparatus for determining a buffer capacity, the apparatus comprising:

the sampling parameter acquisition unit is used for acquiring sampling parameters of audio data transmission within historical sampling duration;

a stability parameter obtaining unit, configured to obtain, based on the sampling parameter, a stability parameter of audio data transmission within the historical sampling duration if the number of the sampling parameters is greater than or equal to a number threshold;

and the cache capacity acquisition unit is used for acquiring a target cache capacity according to the stability parameter, wherein the target cache capacity is the cache capacity of the audio data when the Bluetooth playing device is connected with the terminal device next time.

9. A bluetooth playback device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor carries out the method of any one of the preceding claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the method of any one of the preceding claims 1 to 7.

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