CN105469806B - Sound processing method, device and system - Google Patents
Sound processing method, device and system Download PDFInfo
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Abstract
The application discloses a sound processing method, a device and a system, wherein first frequency information corresponding to a sound signal is obtained by analyzing the sound signal; acquiring second frequency information of sound acquired simultaneously with the sound signal; establishing a corresponding relation between the second frequency information and the sound signal according to the first frequency information and the second frequency information; and when the second frequency information meets a preset condition, processing the sound signal corresponding to the second frequency information. Therefore, when the sound signal is processed, only the sound signal corresponding to the second frequency information is processed, and the collection of the second frequency information can be limited in a certain frequency range, so that the sound in the required frequency range can be directly processed without processing all the sound signals, the calculation intensity is small, the pertinence of sound processing is stronger, and the noise contained in the sound can be more accurately processed.
Description
Technical Field
The present application relates to the field of sound processing, and in particular, to a sound processing method, device and system.
Background
With the development of science and technology, the functions of electronic devices are improved, and the requirements of people for processing sound by using electronic devices are higher and higher, and when the collected sound is processed, the collected sound may include a plurality of different sounds due to the complex sound components in the environment.
The inventor finds that when a user uses a mobile terminal to make a call, the user wants to obtain clearer human voice, but wants to reduce noise interference in the environment and improve the call quality of the mobile terminal.
Disclosure of Invention
In view of this, embodiments of the present application provide a method, an apparatus, and a system for processing a sound signal in a required frequency range, so as to better eliminate noise interference.
In order to achieve the above purpose, the technical solution provided by the present application is as follows:
a sound processing method is applied to a terminal capable of collecting sound, and comprises the following steps:
acquiring a collected sound signal, and analyzing the sound signal to obtain first frequency information corresponding to the sound signal;
acquiring second frequency information of sound acquired simultaneously with the sound signal;
establishing a corresponding relation between the second frequency information and the sound signal according to the first frequency information and the second frequency information;
and when the second frequency information meets a preset condition, processing the sound signal corresponding to the second frequency information.
Preferably, establishing the corresponding relationship between the second frequency information and the sound signal according to the first frequency information and the second frequency information specifically includes:
extracting the same frequency in the first frequency information in the same time as the second frequency information, and establishing the corresponding relation between the sound signal corresponding to the same frequency and the second frequency information.
Preferably, when the second frequency information satisfies a preset condition, the step of processing the sound signal corresponding to the second frequency information includes:
when the second frequency information at least comprises a preset first frequency range, a preset condition is met;
and filtering out the sound signal corresponding to the first frequency range.
Preferably, when the frequency information satisfies a preset condition, processing the sound signal includes:
when the second frequency information at least comprises a preset second frequency range, a preset condition is met;
extracting a sound signal corresponding to the second frequency range in the sound signal, and amplifying the second sound signal;
the first frequency range is different from the second frequency range.
Preferably, the second frequency range is a second frequency range in which frequency information of the second sound is collected in advance.
The present application also provides a sound processing apparatus, including:
the frequency analysis module is used for acquiring the collected sound signals and analyzing the sound signals to acquire first frequency information corresponding to the sound signals;
the frequency acquisition module is used for acquiring second frequency information of sound acquired simultaneously with the sound signal;
the corresponding relation establishing module is used for establishing the corresponding relation between the second frequency information and the sound signal according to the first frequency information and the second frequency information;
and the processing module is used for processing the sound signal corresponding to the second frequency information when the second frequency information meets the preset condition.
Preferably, the correspondence establishing module is specifically configured to extract a frequency in the first frequency information that is the same as a frequency in the second frequency information within the same time, and establish a correspondence between the sound signal corresponding to the same frequency and the second frequency information.
Preferably, the processing module comprises:
and the first processing unit is used for filtering the sound signal corresponding to the first frequency range when the second frequency information at least comprises a preset first frequency range.
Preferably, the processing module further comprises:
the second processing unit is used for extracting a sound signal corresponding to a preset second frequency range in the sound signals and amplifying the second sound signal when the second frequency information at least comprises the preset second frequency range;
the first frequency range is different from the second frequency range.
Preferably, the second frequency range is a second frequency range in which frequency information of the second sound is collected in advance.
The present application also provides a sound processing system, the system comprising:
the sound acquisition module is used for acquiring sound to generate a sound signal;
the frequency acquisition module is used for acquiring frequency information of sound;
the processing module is used for analyzing the sound signal to obtain first frequency information of the sound signal and obtaining second frequency information of sound collected simultaneously with the sound signal, the first frequency information is the same as or different from the second frequency information, a corresponding relation between the second frequency information and the sound signal is established according to the first frequency information and the second frequency information, and when the second frequency information meets a preset condition, the sound signal corresponding to the second frequency information is processed.
The method comprises the steps of analyzing the sound signal to obtain first frequency information corresponding to the sound signal; acquiring second frequency information of sound acquired simultaneously with the sound signal; establishing a corresponding relation between the second frequency information and the sound signal according to the first frequency information and the second frequency information; and when the second frequency information meets a preset condition, processing the sound signal corresponding to the second frequency information. Therefore, when the sound signal is processed, only the sound signal corresponding to the second frequency information is processed, and the collection of the second frequency information can be limited in a certain frequency range, so that the sound in the required frequency range can be directly processed without processing all the sound signals, the calculation intensity is small, the pertinence of sound processing is stronger, and the noise contained in the sound can be more accurately processed.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic flowchart of a sound processing method according to an embodiment of the present application;
fig. 2 is a schematic flowchart of another sound processing method according to an embodiment of the present application;
fig. 3 is a schematic flow chart structure diagram of another sound processing method according to an embodiment of the present application;
fig. 4 is a schematic flow chart structure diagram of another sound processing method according to an embodiment of the present application;
fig. 5 is a schematic diagram of a sound processing apparatus according to an embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
An embodiment of the present application provides a sound processing method, as shown in fig. 1, applied to a terminal capable of collecting sound, where the method includes:
the terminal in the embodiment of the application may be a mobile terminal, such as a smart phone, a tablet computer, or other electronic devices, the terminal may collect sound through a microphone, such as a smart phone, a tablet computer, and the like, and may collect the voice of a user speaking or other sounds through the microphone, and after collecting a sound signal, the terminal may analyze the sound signal to obtain first frequency information of the sound signal, that is, frequency information of the sound signal. The first frequency information in the application is acquired by the microphone and then analyzed, the frequency information of a certain section of sound can be correspondingly known through analysis, and a corresponding specific sound signal can be found through the first frequency information,
102, acquiring second frequency information of sound acquired simultaneously with the sound signal;
the second frequency information in the embodiment of the application may be second frequency information of sound directly obtained by the terminal through the sensor, that is, the first frequency information is obtained by analyzing the sound collected by the microphone, and the second frequency information is obtained directly through the sensor. In the smart mobile terminal, a sensor may be integrated in the terminal, and the sensor may directly detect the frequency of the external sound and record the frequency information.
In the present application, the second frequency information is frequency information of the directly collected sound, and since the second frequency information records only frequency, for example, the terminal collects a section of sound through a microphone in a certain time period, and obtains corresponding first frequency information through analysis, the specific frequency of which specific sound can be known through the first frequency information. However, the second frequency information is frequency information directly collected by the sensor, and in the same time period, only one piece of information about the frequency is known by the second frequency information, and if only the second frequency information is used to know which specific sounds the frequency corresponds to, we cannot know.
103, establishing a corresponding relation between the second frequency information and the sound signal according to the first frequency information and the second frequency information;
since the second frequency information is directly collected, for example, in a certain time period, the terminal collects both the speaking voice of a person and the noise in the environment, the first frequency information includes both the frequency information of the person and the frequency information of the environment noise, if the voice in the time period is used, only the person is needed, and the interference of the environment noise needs to be eliminated, but the person and the environment noise cannot be easily distinguished in the face of a period of voice, and in the same time, the directly collected second frequency information only includes the frequency information of the voice, but cannot determine which voices are not needed through the second frequency information.
Therefore, in the embodiment of the present application, the corresponding relationship between the second frequency information and the sound signal is established according to the specific situation of the first frequency information and the second frequency information.
And 104, processing the sound signal corresponding to the second frequency information when the second frequency information meets a preset condition.
After the correspondence relationship between the second frequency information and the sound signal is established, the sound signal corresponding to the second frequency information may be processed with respect to the second frequency information. In the embodiment of the present application, the sensors that acquire the second frequency information all have a certain acquisition precision, for example, the sensors can only respond to the frequency of the sound with a certain frequency, and if the frequency exceeds the frequency range, the sensors cannot acquire the frequency information, so the acquisition range of the sensors can be set in a certain range, the range is determined as the frequency to be processed, and after the corresponding relationship between the second frequency information and the sound signal is established, the sound signal corresponding to the second frequency information can be processed in a targeted manner.
If the microphone in actual use can collect sound in a certain frequency range, for example, sound containing human voice and environmental noise is collected, the frequencies of the human voice and the environmental noise are different, if the response range of the sensor is set to only respond to the environmental noise, that is, the second frequency range only contains the frequency of the environmental noise, after the corresponding relationship between the second frequency information and the sound signal is established, the environmental noise in the sound signal can be directly known, and further processing can be performed. Therefore, in the embodiment of the present application, the processing of the sound signal can be controlled by adjusting the sensor for collecting the second frequency information.
According to the embodiment of the application, first frequency information corresponding to the sound signal is obtained by analyzing the sound signal; acquiring second frequency information of sound acquired simultaneously with the sound signal; establishing a corresponding relation between the second frequency information and the sound signal according to the first frequency information and the second frequency information; and when the second frequency information meets a preset condition, processing the sound signal corresponding to the second frequency information. Therefore, when the sound signal is processed, only the sound signal corresponding to the second frequency information is processed, and the collection of the second frequency information can be limited in a certain frequency range, so that the sound in the required frequency range can be directly processed without processing all the sound signals, the calculation intensity is small, the pertinence of sound processing is stronger, and the noise contained in the sound can be more accurately processed.
The present application also provides a sound processing method, as shown in fig. 2, applied to a terminal capable of collecting sound, the method including:
step 201, acquiring a collected sound signal, and analyzing the sound signal to obtain first frequency information corresponding to the sound signal;
step 202, acquiring second frequency information of sound acquired simultaneously with the sound signal;
steps 201 and 202 are similar to steps 101 and 102, and are not described again here.
Step 203, extracting the same frequency in the first frequency information within the same time as the second frequency information, and establishing a corresponding relation between the sound signal corresponding to the same frequency and the second frequency information;
since the sensor for collecting the second frequency information can only respond to sounds in a certain frequency range, the range of the second frequency information is generally smaller than the first frequency range, since the first frequency information is the frequency range corresponding to all the sounds collected by the microphone, and the second frequency information is the frequency range corresponding to all the sounds collected by the microphone
The same frequency in the first frequency information as the second frequency information in the same time can be extracted, and the part of the sound signal with the same frequency as the second frequency information is corresponding to the second frequency information, so that the sound signal corresponding to the second frequency information can be determined and prepared for the subsequent processing of the sound corresponding to the second frequency information.
In the embodiment of the present application, since the second frequency information is data only including frequency information, and the sound data corresponding to the second frequency information is not known, the sound signal corresponding to the second frequency information collected by the sensor can be determined by establishing the corresponding relationship between the sound signal and the second frequency information.
Step 204, when the second frequency information meets a preset condition, processing a sound signal corresponding to the second frequency information.
Step 204 is similar to step 104 and will not be described herein.
According to the embodiment of the application, the first frequency information and the second frequency information with the same frequency in the same time are extracted, so that the corresponding relation between the second frequency information and the sound signal is accurately established, and the sound signal corresponding to the second frequency information can be processed.
The present application also provides a sound processing method, as shown in fig. 3, applied to a terminal capable of collecting sound, the method including:
In the above embodiment, the corresponding relationship between the second frequency information and the sound signal is established, and when the second frequency information includes the first frequency range, the sound signal corresponding to the first frequency range is filtered, where the first frequency range may be a preset frequency range, and as long as the second frequency information includes the first frequency range, the sound signal corresponding to the first frequency range is filtered.
In practical applications, the first frequency range may be set as a frequency range of noise, that is, as long as the second frequency information includes the first frequency range, it indicates that the sound signal corresponding to the second frequency information includes noise, and filtering the sound signal corresponding to the first frequency range, that is, filtering the noise.
According to the embodiment of the application, under the condition that the second frequency information meets the preset condition, the corresponding sound signals are filtered, and the specific numerical value of the first frequency range can be preset, so that the corresponding sound signals can be accurately processed, and the required sound signals are obtained.
The present application also provides a sound processing method, as shown in fig. 4, applied to a terminal capable of collecting sound, the method including:
step 401, acquiring a collected sound signal, and analyzing the sound signal to obtain first frequency information corresponding to the sound signal;
step 402, acquiring second frequency information of sound acquired simultaneously with the sound signal;
step 403, establishing a corresponding relationship between the second frequency information and the sound signal according to the first frequency information and the second frequency information;
steps 401, 402, 403 are similar to steps 101, 102, 103 and are not described here again.
Step 404, when the second frequency information at least includes a preset second frequency range, a preset condition is met; extracting a sound signal corresponding to the second frequency range in the sound signal, and amplifying the second sound signal; the first frequency range is different from the second frequency range.
Similar to the previous embodiment, in this embodiment, when the second frequency information includes the second frequency range, the sound signal corresponding to the second frequency range is amplified, the second frequency range may be a sound that needs to be left, and the second frequency range may be set in advance, for example, the frequency range of the daily speaking of the holder may be used as the second frequency range by acquiring the daily speaking of the terminal holder through the terminal, and since the sound of the holder that is acquired by the terminal needs to be left, the sound signal corresponding to the second frequency range may be amplified. The processed sound may be stored, transmitted or further analogue to digital converted.
The second frequency range may be a second frequency range in which frequency information of a second sound is collected in advance, and the second frequency range may be a second frequency range in which frequency information of a sound is collected in advance through the terminal. For example, the user can use the frequency of the speaking voice of the user as the second frequency range in advance, so that the speaking voice of the user can be amplified when the mobile terminal is used for communication, and a better communication effect is achieved.
According to the embodiment of the application, when the second frequency information contains the second frequency range and meets the preset condition, the corresponding sound signal is amplified, and the specific numerical value of the second frequency range can be preset, so that the corresponding sound signal can be accurately processed, and the required sound signal can be obtained.
The present application also provides a sound processing apparatus, as shown in fig. 5, including:
the frequency analysis module 100 is configured to acquire an acquired sound signal, and analyze the sound signal to acquire first frequency information corresponding to the sound signal;
a frequency obtaining module 200, configured to obtain second frequency information of a sound collected simultaneously with the sound signal;
a corresponding relationship establishing module 300, configured to establish a corresponding relationship between the second frequency information and the sound signal according to the first frequency information and the second frequency information;
the processing module 400 is configured to process the sound signal corresponding to the second frequency information when the second frequency information meets a preset condition.
The sound processing device in the embodiment of the application can only process the sound signal corresponding to the second frequency information when processing the sound signal, and can limit the collection of the second frequency information in a certain frequency range, so that the sound in the required frequency range can be directly processed without processing all the sound signals, the calculation intensity is small, the pertinence of sound processing is stronger, and the noise contained in the sound can be more accurately processed.
Preferably, the correspondence establishing module is specifically configured to extract a frequency in the first frequency information that is the same as a frequency in the second frequency information within the same time, and establish a correspondence between the sound signal corresponding to the same frequency and the second frequency information.
Preferably, the processing module comprises:
and the first processing unit is used for filtering the sound signal corresponding to the first frequency range when the second frequency information at least comprises a preset first frequency range.
Preferably, the processing module further comprises:
the second processing unit is used for extracting a sound signal corresponding to a preset second frequency range in the sound signals and amplifying the second sound signal when the second frequency information at least comprises the preset second frequency range;
the first frequency range is different from the second frequency range.
Preferably, the second frequency range is a second frequency range in which frequency information of the second sound is collected in advance.
The present application also provides a sound processing system, the system comprising:
the sound acquisition module is used for acquiring sound to generate a sound signal;
the frequency acquisition module is used for acquiring frequency information of sound;
the processing module is used for analyzing the sound signal to obtain first frequency information of the sound signal and obtaining second frequency information of sound collected simultaneously with the sound signal, the first frequency information is the same as or different from the second frequency information, a corresponding relation between the second frequency information and the sound signal is established according to the first frequency information and the second frequency information, and when the second frequency information meets a preset condition, the sound signal corresponding to the second frequency information is processed.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It is to be understood that the foregoing is merely exemplary of some of the presently preferred embodiments of the invention, and that these embodiments are not to be considered in all respects as illustrative and not restrictive, and that the general principles defined herein may be applied to other embodiments without departing from the spirit or scope of the present application. Therefore, based on the above embodiments, it will be apparent to those skilled in the art that various modifications and decorations can be made without departing from the principle and inventive concept of the present application, and all other embodiments obtained by the modifications and decorations can be applied to the technical solution of the present application without affecting the implementation of the present application, and shall fall within the protection scope of the present application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing detailed description has provided for the present application and the principles and embodiments of the present application can be illustrated by specific examples, which are provided only for the purpose of facilitating understanding of the method and the core concept of the present application, and persons skilled in the art may change the embodiments and application scope according to the concept of the present application.
Claims (11)
1. A sound processing method is applied to a terminal capable of collecting sound, and the method comprises the following steps:
acquiring a collected sound signal, and analyzing the sound signal to obtain first frequency information corresponding to the sound signal;
acquiring second frequency information of sound acquired simultaneously with the sound signal;
establishing a corresponding relation between the second frequency information and the sound signal according to the first frequency information and the second frequency information;
and when the second frequency information meets a preset condition, processing the sound signal corresponding to the second frequency information.
2. The method according to claim 1, wherein the establishing the corresponding relationship between the second frequency information and the sound signal according to the first frequency information and the second frequency information specifically comprises:
extracting the same frequency in the first frequency information in the same time as the second frequency information, and establishing the corresponding relation between the sound signal corresponding to the same frequency and the second frequency information.
3. The method according to claim 1, wherein when the second frequency information satisfies a preset condition, the step of processing the sound signal corresponding to the second frequency information comprises:
when the second frequency information at least comprises a preset first frequency range, a preset condition is met;
and filtering out the sound signal corresponding to the first frequency range.
4. The method according to claim 3, wherein when the frequency information satisfies a preset condition, processing the sound signal corresponding to the second frequency information comprises:
when the second frequency information at least comprises a preset second frequency range, a preset condition is met;
extracting a sound signal corresponding to the second frequency range from the sound signals corresponding to the second frequency information, and amplifying the sound signal corresponding to the second frequency range;
the first frequency range is different from the second frequency range.
5. The method of claim 4, wherein the second frequency range is frequency information of a second sound acquired in advance.
6. A sound processing apparatus, comprising:
the frequency analysis module is used for acquiring the collected sound signals and analyzing the sound signals to acquire first frequency information corresponding to the sound signals;
the frequency acquisition module is used for acquiring second frequency information of sound acquired simultaneously with the sound signal;
the corresponding relation establishing module is used for establishing the corresponding relation between the second frequency information and the sound signal according to the first frequency information and the second frequency information;
and the processing module is used for processing the sound signal corresponding to the second frequency information when the second frequency information meets the preset condition.
7. The apparatus according to claim 6, wherein the correspondence establishing module is specifically configured to extract a same frequency in the first frequency information within a same time as that of second frequency information, and establish a correspondence between the sound signal corresponding to the same frequency and the second frequency information.
8. The apparatus of claim 6, wherein the processing module comprises:
and the first processing unit is used for filtering the sound signal corresponding to the first frequency range when the second frequency information at least comprises a preset first frequency range.
9. The apparatus of claim 8, wherein the processing module further comprises:
the second processing unit is used for extracting a sound signal corresponding to a second frequency range from the sound signals corresponding to the second frequency information and amplifying the sound signal corresponding to the second frequency range when the second frequency information at least comprises a preset second frequency range;
the first frequency range is different from the second frequency range.
10. The apparatus of claim 9, wherein the second frequency range is frequency information of a second sound acquired in advance.
11. A sound processing system, the system comprising:
the sound acquisition module is used for acquiring sound to generate a sound signal;
the frequency acquisition module is used for acquiring frequency information of sound;
the processing module is used for analyzing the sound signal to obtain first frequency information of the sound signal and obtaining second frequency information of sound collected simultaneously with the sound signal, the first frequency information is the same as or different from the second frequency information, a corresponding relation between the second frequency information and the sound signal is established according to the first frequency information and the second frequency information, and when the second frequency information meets a preset condition, the sound signal corresponding to the second frequency information is processed.
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