CN113630707A - Sound system detection method, device, equipment, storage medium and sound system - Google Patents
Sound system detection method, device, equipment, storage medium and sound system Download PDFInfo
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Abstract
The invention discloses a sound system detection method, a device, equipment, a storage medium and a sound system, wherein the sound system detection method comprises a sound box equipment fault detection step, the sound box equipment fault detection step is used for respectively carrying out fault detection on a low-frequency unit, a medium-frequency unit and a high-frequency unit of sound box equipment, and the following steps are respectively carried out for each frequency band unit: s10, aiming at a frequency band unit, outputting a control signal to control an audio processor to input a test audio corresponding to the frequency band unit to the power amplifier equipment; s20, acquiring input current of the power amplifier equipment when test audio is input, and recording the input current as first input current; s30, calculating the difference value between the value of the first input current and a theoretical value; and S40, judging whether the difference value exceeds a preset error range, if so, judging that the frequency band unit has a fault, and if not, judging that the frequency band unit is normal. The method has simple and accurate detection process and does not require professional skills of operators.
Description
Technical Field
The invention relates to the technical field of sound equipment, in particular to a sound system detection method, a sound system detection device, sound system detection equipment, a storage medium and a sound system.
Background
In general, a sound system is composed of three modules, namely an audio processor, power amplifier equipment and sound box equipment. Wherein audio amplifier equipment contains three frequency channel units of high frequency, intermediate frequency, low frequency, when the audio amplifier broke down, need detect the frequency channel unit of specific trouble. However, in the current detection method, a sound tester can detect a specific failed frequency band unit only by means of professional hearing, and the detection method has high technical requirements on the detector and is easy to cause errors.
In addition, at present, methods for judging whether the power amplifier device is in the power-on state include a method of manual observation and a method of querying through a communication interface of the power amplifier device, the method of manual observation is low in efficiency, and the method of querying through the communication interface of the power amplifier device needs to configure the communication interface for the power amplifier device, so that the manufacturing cost of the power amplifier device is increased.
Disclosure of Invention
The invention aims to provide a sound system detection method, a device, equipment, a storage medium and a sound system, which are simple and accurate in detection.
In order to solve the technical problems, the invention adopts the following technical scheme:
a sound system detection method comprises a sound box equipment fault detection step, wherein the sound box equipment fault detection step is used for respectively carrying out fault detection on a low-frequency unit, a medium-frequency unit and a high-frequency unit of sound box equipment, and the following steps are respectively carried out for each frequency band unit: s10, aiming at a frequency band unit, outputting a control signal to control an audio processor to input a test audio corresponding to the frequency band unit to the power amplifier equipment; s20, acquiring input current of the power amplifier equipment when test audio is input, and recording the input current as first input current; s30, calculating the difference value between the value of the first input current and a theoretical value; and S40, judging whether the difference value exceeds a preset error range, if so, judging that the frequency band unit has a fault, and if not, judging that the frequency band unit is normal.
The utility model provides a sound system detection device, its is including audio amplifier equipment fault detection module, and this audio amplifier equipment fault detection module is used for carrying out fault detection to audio amplifier equipment's low frequency unit, intermediate frequency unit and high frequency unit respectively, and this audio amplifier equipment fault detection module further including: the signal output unit is used for outputting a control signal to the audio processor when detecting a frequency band unit so as to control the audio processor to input a test audio corresponding to the frequency band unit to the power amplifier equipment; the first current obtaining unit is used for obtaining the input current of the power amplifier equipment when the test audio is input and recording the input current as the first input current; the difference value calculating unit is used for calculating the difference value between the numerical value of the first input current output by the first current acquiring unit and a theoretical value; and the fault judging unit is used for judging whether the difference output by the difference calculating unit exceeds a preset error range, if so, judging that the frequency band unit has a fault, and if not, judging that the frequency band unit is normal.
A sound system detection device comprises at least one processor and at least one memory which is in communication connection with the processor, wherein the memory stores program instructions which are called and executed by the processor to realize the sound system detection method.
A storage medium containing program instructions which, when executed by a processor, implement the sound system detection method described above.
The utility model provides a sound system, including audio processor, power amplifier, audio amplifier equipment and a check out test set, audio amplifier equipment is including high frequency unit, intermediate frequency unit and low frequency unit, power amplifier equipment is connected with a current sensor who is used for detecting power amplifier's input current, check out test set adopts foretell sound system check out test set, check out test set is connected with current sensor, audio processor respectively.
The invention has the beneficial technical effects that: when the fault detection is carried out on a specific frequency band unit of the sound box equipment, the input current of the power amplifier equipment when the test audio frequency is input is firstly obtained, then the difference value of the input current and the theoretical value is calculated, whether the difference value exceeds the preset error range is judged, if yes, the frequency band unit is judged to have a fault, and if not, the frequency band unit is judged to be normal. The fault detection of the low-frequency unit, the medium-frequency unit and the high-frequency unit can be respectively completed by respectively executing the steps, the detection process is simple and accurate, an operator is not required to have professional technology, and the problem that a professional sound tuner is required to perform sound detection in the past is solved.
Drawings
FIG. 1 is a schematic flow chart of the failure detection step of the sound box apparatus according to the present invention;
fig. 2 is a schematic flow chart of the power amplifier device power-on detection step of the present invention;
FIG. 3 is a schematic structural diagram of a sound box device failure detection module according to the present invention;
fig. 4 is a schematic structural diagram of a power amplifier device power-on detection module according to the present invention;
FIG. 5 is a schematic diagram of the sound system detection apparatus of the present invention;
fig. 6 is a schematic structural diagram of an audio system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention is further described with reference to the accompanying drawings and examples.
The invention provides a sound system detection method, which comprises a sound box equipment fault detection step, wherein the sound box equipment fault detection step is used for respectively carrying out fault detection on a low-frequency unit, a medium-frequency unit and a high-frequency unit of sound box equipment.
As shown in fig. 1, in some embodiments of the present invention, the following steps are adopted to perform fault detection on a specific frequency band unit of a sound box device:
s10, aiming at a frequency band unit, outputting a control signal to control an audio processor to input a test audio corresponding to the frequency band unit to the power amplifier equipment;
s20, acquiring input current of the power amplifier equipment when test audio is input, and recording the input current as first input current;
s30, calculating the difference value between the value of the first input current and a theoretical value;
and S40, judging whether the difference value exceeds a preset error range, if so, judging that the frequency band unit has a fault, and if not, judging that the frequency band unit is normal.
Since the sound box device includes the low frequency unit, the intermediate frequency unit, and the high frequency unit, step S10 to step S40 need to be executed for each frequency band unit, so as to complete the fault detection of the low frequency unit, the intermediate frequency unit, and the high frequency unit, respectively.
When the fault detection is carried out on a specific frequency band unit of the sound box equipment, the input current of the power amplifier equipment when the test audio frequency is input is firstly obtained, then the difference value of the input current and the theoretical value is calculated, whether the difference value exceeds the preset error range is judged, if yes, the frequency band unit is judged to have a fault, and if not, the frequency band unit is judged to be normal. The fault detection of the low-frequency unit, the medium-frequency unit and the high-frequency unit can be respectively completed by respectively executing the steps, the detection process is simple and accurate, an operator is not required to have professional technology, and the problem that a professional sound tuner is required to perform sound detection in the past is solved.
The following describes the fault detection process of the low frequency unit, the intermediate frequency unit, and the high frequency unit:
(1) fault detection of low frequency units
1.1 outputting control signal to control audio processor to input a low-frequency test audio to power amplifier device, and recording sound pressure level as pL. Because different frequency band units of the sound box equipment respond to test audio signals with different frequencies differently, when fault detection of the low-frequency unit is carried out, low-frequency test audio is input into the power amplifier equipment.
1.2 obtaining the input current of the power amplifier equipment when inputting the low-frequency test audio frequency, and recording as IL. In specific implementation, the power amplifier device may be connected to a current sensor for detecting an input current of the power amplifier device, so as to obtain the input current of the power amplifier device when the low-frequency test audio is input.
1.3 calculating the input Current ILThe difference between the value of (a) and the theoretical value. The sound pressure level p of the input test audio signal and the input current I of the power amplifier device have a certain incidence relation, which is recorded as y ═ f (x), aiming at different power amplifier device and sound box device combinations, the sound pressure level p of the input test audio signal and the input current I of the power amplifier device have different incidence relations, and the incidence relations can be obtained through fitting of actually measured sound pressure level and current data. Therefore, the temperature of the molten metal is controlled,the theoretical value y of the input current of the power amplifier equipment when the low-frequency test audio is input can be calculated through the incidence relation y ═ f (x)L，yL＝f(pL). Input current ILAnd theoretical value yLDifference value Δ ofL＝|yL-IL|。
1.4 determination of the difference DeltaLAnd if the error range exceeds the preset error range, judging that the low-frequency unit has a fault, and if not, judging that the low-frequency unit is normal. The error range can be preset according to actual conditions, and the size of the error range setting is not limited in this embodiment as long as the preset error range is within the allowable error range.
(2) Fault detection of intermediate frequency units
2.1 outputting control signal to control audio processor to input an intermediate frequency test audio to power amplifier device, and recording sound pressure level as pM. Because different frequency band units of the sound box equipment respond to different test audio signals with different frequencies, when the fault of the intermediate frequency unit is detected, intermediate frequency test audio is input into the power amplifier equipment.
2.2 obtaining the input current of the power amplifier device when inputting the intermediate frequency test audio frequency, and recording as IM. In specific implementation, the power amplifier device may be connected to a current sensor for detecting an input current of the power amplifier device, so as to obtain the input current of the power amplifier device when the intermediate frequency test audio is input.
2.3 calculating the input Current IMThe difference between the value of (a) and the theoretical value. Calculating a theoretical value y of the input current of the power amplifier equipment when the intermediate frequency test audio is input through the incidence relation y ═ f (x)M，yM＝f(pM). Recalculating the input current IMAnd theoretical value yMDifference value Δ ofM，ΔM＝|yM-IM|。
2.4 determination of the difference DeltaMAnd if the error range exceeds the preset error range, judging that the intermediate frequency unit has a fault, and if the error range does not exceed the preset error range, judging that the intermediate frequency unit is normal. The error range can be preset according to actual conditions, and the size of the error range is not limited in the embodiment, as long as the preset error range is adoptedWithin the allowable error range.
(3) Fault detection of high frequency units
3.1 outputting control signal to control audio processor to input a high-frequency test audio to power amplifier, and recording sound pressure level as pH. Because different frequency band units of the sound box equipment respond to different test audio signals with different frequencies, when the fault detection of the high-frequency unit is carried out, high-frequency test audio is input into the power amplifier equipment.
3.2 obtaining the input current of the power amplifier equipment when inputting the high-frequency test audio, and recording as IH. In specific implementation, the power amplifier device may be connected to a current sensor for detecting an input current of the power amplifier device, so as to obtain the input current of the power amplifier device when the high-frequency test audio is input.
3.3 calculating the input Current IHThe difference between the value of (a) and the theoretical value. Calculating to obtain a theoretical value y of the input current of the power amplifier equipment when the high-frequency test audio is input through the incidence relation y ═ f (x)H，yH＝f(pH). Input current IHAnd theoretical value yHDifference value Δ ofH，ΔH＝|yH-IH|。
3.4 determination of the difference DeltaHAnd if the error range exceeds the preset error range, judging that the high-frequency unit has a fault, and if the error range does not exceed the preset error range, judging that the high-frequency unit is normal. The error range can be preset according to actual conditions, and the size of the error range setting is not limited in this embodiment as long as the preset error range is within the allowable error range.
In a preferred embodiment of the present invention, the sound system detection method further includes a power amplifier device power-on detection step, as shown in fig. 2, the power amplifier device power-on detection step further includes the following steps:
and S110, acquiring the current input current of the power amplifier equipment, and recording the current input current as a second input current. In specific implementation, the power amplifier device may be connected to a current sensor for detecting an input current of the power amplifier device, so as to obtain a current input current of the power amplifier device.
S120, judging whether the second input current is larger than a preset threshold value, if so, judging that the power amplifier equipment is started, and if not, judging that the power amplifier equipment is in a standby state or is powered off. Because the power amplifier equipment can generate a basic consumption current in the power amplifier equipment in the power-on state even if no audio is played, so that the normal operation of the power amplifier equipment is maintained, whether the power amplifier equipment is in the power-on state can be known by monitoring whether the current value of the power amplifier equipment is larger than the basic consumption current. Therefore, a preset threshold value can be set by referring to the basic consumption current, and when the second input current is larger than the preset threshold value, the power amplifier equipment is judged to be started; and when the second input current is less than or equal to the preset threshold value, judging that the power amplifier equipment is in standby or power-off. It should be noted that, the magnitude of the basic consumption current generated when the power amplifier device is turned on and does not play any audio is related to the model of the power amplifier device, and therefore, the magnitude of the preset threshold is also related to the model of the power amplifier device.
According to the embodiment of the invention, whether the power amplifier equipment is started or not is judged by detecting the input current of the power amplifier equipment, so that a manual observation method can be replaced, the simplicity and the high efficiency are realized, a communication interface does not need to be configured for the power amplifier equipment, and the manufacturing cost of the power amplifier equipment is reduced.
As shown in fig. 3, in some embodiments of the present invention, the sound system detection apparatus includes a sound box device fault detection module, where the sound box device fault detection module is configured to perform fault detection on a low frequency unit, a medium frequency unit, and a high frequency unit of a sound box device, and the sound box device fault detection module further includes:
the signal output unit 110 is configured to output a control signal to the audio processor when detecting a frequency band unit, so as to control the audio processor to input a test audio corresponding to the frequency band unit to the power amplifier device.
The first current obtaining unit 120 is configured to obtain an input current of the power amplifier device when the test audio is input, and record the input current as the first input current.
A difference calculating unit 130, configured to calculate a difference between the value of the first input current output by the first current obtaining unit and a theoretical value.
And a fault determining unit 140, configured to determine whether the difference output by the difference calculating unit exceeds a preset error range, if so, determine that the frequency band unit has a fault, and if not, determine that the frequency band unit is normal.
The concrete fault detection process of the sound box equipment fault detection module is described below for the low-frequency unit, the intermediate-frequency unit and the high-frequency unit respectively:
(a) fault detection of low frequency units
The signal output unit 110 outputs a control signal to the audio processor to control the audio processor to input a low frequency test audio to the power amplifier device. Because different frequency band units of the sound box equipment respond to different test audio signals with different frequencies differently, when the fault detection of the low-frequency unit is carried out, low-frequency test audio is input into the power amplifier equipment, and the sound pressure level is recorded as pL。
The first current obtaining unit 120 obtains an input current of the power amplifier device when the low frequency test audio is input, which is denoted as IL。
The difference calculation unit 130 calculates the input current ILThe difference between the value of (a) and the theoretical value. The sound pressure level p of the input test audio signal and the input current I of the power amplifier device have a certain incidence relation, which is recorded as y ═ f (x), aiming at different power amplifier device and sound box device combinations, the sound pressure level p of the input test audio signal and the input current I of the power amplifier device have different incidence relations, and the incidence relations can be obtained through fitting of actually measured sound pressure level and current data. Therefore, the theoretical value y of the input current of the power amplifier equipment when the low-frequency test audio is input can be calculated through the association relationship y ═ f (x)L，yL＝f(pL). Input current ILAnd theoretical value yLDifference value Δ ofL＝|yL-IL|。
The failure determination unit 140 determines the difference value ΔLAnd if the error range exceeds the preset error range, judging that the low-frequency unit has a fault, and if not, judging that the low-frequency unit is normal.
(b) Fault detection of intermediate frequency units
The signal output unit 110 outputs a control signal to the audio processor to control the audio processor to input an intermediate frequency test audio to the power amplifying device. Because different frequency band units of the sound box equipment respond to different frequency test audio signals differently, when the fault detection of the intermediate frequency unit is carried out, intermediate frequency test audio is input into the power amplifier equipment, and the sound pressure level is recorded as pM。
The first current obtaining unit 120 obtains an input current, denoted as I, of the power amplifier device when the intermediate frequency test audio is inputM。
The difference calculation unit 130 calculates the input current IMThe difference between the value of (a) and the theoretical value. Calculating a theoretical value y of the input current of the power amplifier equipment when the intermediate frequency test audio is input through the incidence relation y ═ f (x)M，yM＝f(pM). Recalculating the input current IMAnd theoretical value yMDifference value Δ ofM，ΔM＝|yM-IM|。
The failure determination unit 140 determines the difference value ΔMAnd if the error range exceeds the preset error range, judging that the intermediate frequency unit has a fault, and if the error range does not exceed the preset error range, judging that the intermediate frequency unit is normal.
(c) Fault detection of high frequency units
The signal output unit 110 outputs a control signal to the audio processor to control the audio processor to input a high frequency test audio to the power amplifier device. Because different frequency band units of the sound box equipment respond to different test audio signals with different frequencies differently, when the fault detection of the high-frequency unit is carried out, high-frequency test audio is input into the power amplifier equipment, and the sound pressure level is recorded as pH。
The first current obtaining unit 120 obtains an input current of the power amplifier device when the high frequency test audio is input, which is denoted as IH。
The difference calculation unit 130 calculates the input current IHThe difference between the value of (a) and the theoretical value. Calculating to obtain a theoretical value y of the input current of the power amplifier equipment when the high-frequency test audio is input through the incidence relation y ═ f (x)H，yH＝f(pH). Input current IHAnd theoretical value yHDifference value Δ ofH，ΔH＝|yH-IH|。
The failure determination unit 140 determines the difference value ΔHAnd if the error range exceeds the preset error range, judging that the high-frequency unit has a fault, and if the error range does not exceed the preset error range, judging that the high-frequency unit is normal.
In a preferred embodiment of the present invention, the sound system detection apparatus further includes a power amplifier device power-on detection module, as shown in fig. 4, the power amplifier device power-on detection module further includes:
a second current obtaining unit 210, configured to obtain a current input current of the power amplifier device, which is recorded as a second input current;
the power-on determining unit 220 is configured to determine whether the second input current is greater than a preset threshold, determine that the power amplifier device is in a power-on state if the second input current is greater than the preset threshold, and determine that the power amplifier device is in a standby state or a power-off state if the second input current is not greater than the preset threshold.
The present invention also provides a sound system detection device, as shown in fig. 5, in one embodiment of the present invention, the sound system detection device comprises a processor 310 and a memory 320 communicatively connected to the processor 310. The sound system detection device may also include an I/O interface 330 and a communication component 340.
The memory 320 is used to store various types of data to support operations on the sound system detection device, and the data may include instructions for any application program or method operating on the sound system detection device, and application program related data, such as program instructions for performing the sound system detection method described above, input current information of the power amplifier device, and so on. The Memory 320 may be implemented by one or more volatile or non-volatile Memory devices of any type or combination of volatile and non-volatile Memory devices, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk, or optical disk. One or more than one processor 310 may be employed, and the processor 310 is configured to control the overall operation of the sound system detection apparatus, and to perform the steps of the sound system detection method described above by invoking and executing program instructions stored in the memory 320. The I/O interface 330 provides an interface between the processor 310 and other interface modules, which may be audio processors, current sensors, etc. The communication component 340 is used for wireless communication between the sound system detection device and other devices (audio processor, current sensor, etc.). The wireless Communication includes Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, or 4G, or a combination of one or more of them, so the corresponding Communication component 340 may include: Wi-Fi module, bluetooth module, NFC module.
The invention also provides a storage medium containing program instructions which, when executed by a processor, implement the sound system detection method. The storage medium may be the memory 320 including program instructions executable by the processor 310 of the sound system detection apparatus to perform the sound system detection method.
As shown in fig. 6, in an embodiment of the present invention, the sound system includes an audio processor 10, a power amplifier device 20, a sound box device 30, and a detection device, where the sound box device 30 includes a high frequency unit, a medium frequency unit, and a low frequency unit, the power amplifier device 20 is connected to a current sensor 40 for detecting an input current of the power amplifier device 20, the detection device adopts the sound system detection device shown in fig. 5, and the detection device is connected to the current sensor 40 and the audio processor 10, respectively.
The foregoing is considered as illustrative of the preferred embodiments of the invention and is not to be construed as limiting the invention in any way. Various equivalent changes and modifications can be made by those skilled in the art based on the above embodiments, and all equivalent changes and modifications within the scope of the claims should fall within the protection scope of the present invention.
Claims (9)
1. A sound system detection method is characterized by comprising a sound box equipment fault detection step, wherein the sound box equipment fault detection step is used for respectively carrying out fault detection on a low-frequency unit, a medium-frequency unit and a high-frequency unit of sound box equipment, and the following steps are respectively carried out for each frequency band unit:
s10, aiming at a frequency band unit, outputting a control signal to control an audio processor to input a test audio corresponding to the frequency band unit to the power amplifier equipment;
s20, acquiring input current of the power amplifier equipment when test audio is input, and recording the input current as first input current;
s30, calculating the difference value between the value of the first input current and a theoretical value;
and S40, judging whether the difference value exceeds a preset error range, if so, judging that the frequency band unit has a fault, and if not, judging that the frequency band unit is normal.
2. The sound system detection method of claim 1, wherein the sound system detection method further comprises a power amplifier device power-on detection step, and the power amplifier device power-on detection step further comprises the following steps:
acquiring the current input current of the power amplifier equipment, and recording the current input current as a second input current;
and judging whether the second input current is larger than a preset threshold value, if so, judging that the power amplifier equipment is started, and if not, judging that the power amplifier equipment is standby or powered off.
3. The sound system detection method of claim 1, wherein the test audio corresponding to the low frequency unit is a low frequency test audio, the test audio corresponding to the mid frequency unit is a mid frequency test audio, and the test audio corresponding to the high frequency unit is a high frequency test audio.
4. The sound system detecting method according to claim 3, wherein said step S30 further includes the steps of:
calculating a theoretical value of input current of the power amplifier equipment when the test audio is input according to the sound pressure level of the test audio;
and comparing the value of the first input current with the theoretical value obtained by calculation to obtain the difference value between the value of the first input current and the theoretical value.
5. The utility model provides a sound system detection device, its characterized in that, sound system detection device is including audio amplifier equipment fault detection module, and this audio amplifier equipment fault detection module is used for carrying out fault detection to audio amplifier equipment's low frequency unit, intermediate frequency unit and high frequency unit respectively, and this audio amplifier equipment fault detection module is further including:
the signal output unit is used for outputting a control signal to the audio processor when detecting a frequency band unit so as to control the audio processor to input a test audio corresponding to the frequency band unit to the power amplifier equipment;
the first current obtaining unit is used for obtaining the input current of the power amplifier equipment when the test audio is input and recording the input current as the first input current;
the difference value calculating unit is used for calculating the difference value between the numerical value of the first input current output by the first current acquiring unit and a theoretical value;
and the fault judging unit is used for judging whether the difference output by the difference calculating unit exceeds a preset error range, if so, judging that the frequency band unit has a fault, and if not, judging that the frequency band unit is normal.
6. The sound system detection device of claim 5, wherein the sound system detection device comprises a power amplifier device power-on detection module, and the power amplifier device power-on detection module further comprises:
the second current obtaining unit is used for obtaining the current input current of the power amplifier equipment and recording the current input current as a second input current;
and the power-on judging unit is used for judging whether the second input current is larger than a preset threshold value, judging that the power amplifier equipment is in a power-on state if the second input current is larger than the preset threshold value, and judging that the power amplifier equipment is in a standby state or a power-off state if the second input current is not larger than the preset threshold value.
7. A sound system detection device comprising at least one processor and at least one memory communicatively coupled to the processor, wherein the memory stores program instructions that, when invoked and executed by the processor, implement the sound system detection method of any of claims 1 to 4.
8. A storage medium characterized in that it stores program instructions which, when executed by a processor, implement the sound system detection method according to any one of claims 1 to 4.
9. A sound system comprises an audio processor, a power amplifier and a sound box device, wherein the sound box device comprises a high-frequency unit, a medium-frequency unit and a low-frequency unit, and is characterized in that the power amplifier is connected with a current sensor for detecting the input current of the power amplifier, the sound system further comprises a detection device, the detection device adopts the sound system detection device of claim 7, and the detection device is respectively connected with the current sensor and the audio processor.
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| CN115426607A (en) * | 2022-08-31 | 2022-12-02 | 重庆长安汽车股份有限公司 | Audio diagnosis method and device, electronic equipment and storage medium |
| CN117939383A (en) * | 2024-02-08 | 2024-04-26 | 上海傅里叶半导体有限公司 | Speaker fault detection circuit and method and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115426607A (en) * | 2022-08-31 | 2022-12-02 | 重庆长安汽车股份有限公司 | Audio diagnosis method and device, electronic equipment and storage medium |
| CN115426607B (en) * | 2022-08-31 | 2024-06-21 | 重庆长安汽车股份有限公司 | Audio diagnosis method, device, electronic equipment and storage medium |
| CN117939383A (en) * | 2024-02-08 | 2024-04-26 | 上海傅里叶半导体有限公司 | Speaker fault detection circuit and method and electronic equipment |
| CN117939383B (en) * | 2024-02-08 | 2024-08-20 | 上海傅里叶半导体有限公司 | Speaker fault detection circuit and method and electronic equipment |
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Application publication date: 20211109 |