WO2022141244A1

WO2022141244A1 - Audio file processing method and apparatus, and bone conduction device

Info

Publication number: WO2022141244A1
Application number: PCT/CN2020/141606
Authority: WO
Inventors: 马雷; 李琨; 张米乐; 赵佑铭
Original assignee: 雷铭科技有限公司
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-07-07
Also published as: CN116472722A

Abstract

Disclosed are an audio file processing method and apparatus, and a bone conduction device. The method comprises: acquiring a first audio file to be processed; filtering an invalid component of a first audio signal in the first audio file to generate a second audio signal, wherein the invalid component is a component in the first audio signal that cannot drive a sound producing element to vibrate; and generating a second audio file according to the second audio signal. By means of the method, an invalid component in a first audio file to be processed can be removed, thereby avoiding power loss of the invalid component, and reducing the power consumption of a bone conduction device.

Description

Audio file processing method, device and bone conduction device

technical field

The present application relates to the technical field of audio playback, and in particular, to a method, device and bone conduction device for processing audio files.

Background technique

With the improvement of material and living water quality and the development of science and technology, audio playback equipment has developed from traditional air conduction playback equipment to the latest bone conduction equipment. Both air conduction devices and bone conduction devices rely on vibration for sound transmission. The air conduction playback device converts the vibration of the horn vibrator into the vibration of the air, and then vibrates the eardrum of the ear to make people think that the sound is heard. Bone conduction devices use bone as a medium to transmit vibrations to the auditory nerve through the cheekbones or jawbone, making people think that sound is heard.

In the related art, during the recording or production process of most audio files, invalid components will be added to the waveform of normal audio signals. loss, resulting in a large power consumption of the bone conduction device.

SUMMARY OF THE INVENTION

Embodiments of the present application provide an audio file processing method, device, and bone conduction device, so as to solve the problem of high power consumption of the bone conduction device in the prior art.

In a first aspect, an embodiment of the present application provides a method for processing an audio file, the method comprising:

Obtain the first audio file to be processed;

Filtering invalid components of the first audio signal in the first audio file to generate a second audio signal, where the invalid components are components in the first audio signal that cannot drive the sound-emitting element to vibrate;

According to the second audio signal, a second audio file to be played is generated.

In an optional implementation manner, described filtering the invalid components of the first audio signal in the first audio file to generate the second audio signal, including:

performing spectrum calculation on the first audio signal to determine an invalid component of the first audio signal;

Invalid components of the first audio signal are removed from the first audio signal to generate the second audio signal.

In an optional implementation manner, the invalid component includes a DC component.

In an optional implementation manner, after generating the second audio file according to the second audio signal, the method further includes:

The second audio file is sent to a bone conduction component for playing the second audio file using bone as a medium.

In a second aspect, an embodiment of the present application provides a method for processing an audio file, the method comprising:

Obtain the first audio file to be processed;

Audio playback is performed under the driving of the second audio signal.

In an optional implementation manner, the filtering of invalid components of the first audio signal in the first audio file to generate the second audio signal includes:

In a third aspect, an embodiment of the present application provides an apparatus for processing audio files, including:

an acquisition module for acquiring the first audio file to be processed;

A filtering module, configured to filter invalid components of the first audio signal in the first audio file, and generate a second audio signal to be played, where the invalid components are components in the first audio signal that cannot drive the vibration of the sound-emitting element ;

A generating module, configured to generate a second audio file according to the second audio signal.

In an optional implementation manner, the filtering module is specifically configured to perform spectrum calculation on the first audio signal to determine invalid components of the first audio signal; The invalid component of the first audio signal generates the second audio signal.

In an optional embodiment, the device further includes:

A sending module, configured to send the second audio file to a bone conduction component, where the bone conduction component is used to play the second audio file using bone as a medium.

In a fourth aspect, an embodiment of the present application provides an apparatus for processing audio files, including:

an acquisition module for acquiring the first audio file to be processed;

A filtering module, configured to filter the invalid component of the first audio signal in the first audio file, and generate a second audio signal, where the invalid component is a component in the first audio signal that cannot drive the sound-emitting element to vibrate;

A playing module is used to play audio under the driving of the second audio signal.

In a fifth aspect, an embodiment of the present application provides a bone conduction device, including: an audio playback circuit, an audio processing circuit, and a bone conduction component;

The audio processing circuit is respectively connected with the audio playback circuit and the bone conduction component;

The audio playback circuit is used to convert the target audio file to be processed into a first audio signal;

The audio processing circuit is used to filter invalid components in the first audio signal to generate a second audio signal to be played, and the invalid components are components in the first audio signal that cannot drive the sound-emitting element to vibrate;

The bone conduction component is used for audio playback using bone as a medium under the driving of the second audio signal.

In an optional implementation manner, the audio processing circuit includes a filter element, and the filter element is used to remove invalid components in the first audio signal;

And/or, the audio processing circuit includes a chip, and the chip is configured to:

Filter invalid components of the first audio signal in the target audio file to generate a second audio signal, where the invalid components are components in the first audio signal that cannot drive the sound-emitting element to vibrate.

In an optional implementation manner, the filter element includes at least one of the following: a filter, a filter inductor, and a filter capacitor.

In an optional implementation manner, the target audio file includes a first audio file or a second audio file, and the second audio file is a terminal device that removes invalid components of the first audio signal in the first audio file. generated audio files. In an optional embodiment, the bone conduction assembly includes a voice coil magnet and a piezoelectric ceramic vibrating piece;

The voice coil magnet is used for generating electromagnetic force under the driving of the second audio signal to vibrate the piezoelectric ceramic vibrating piece, so as to use bone as a medium for audio playback.

In a sixth aspect, a computer program product includes computer instructions that, when executed by a processor, implement the method of any one of the first aspects.

In a seventh aspect, an embodiment of the present application provides a computer storage medium, where the computer storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing the above method steps.

In an eighth aspect, an embodiment of the present application provides an electronic device, which may include: a processor and a memory; wherein, the memory stores a computer program, and the computer program is adapted to be loaded by the processor and execute the above method steps .

In the audio file processing method, device, and bone conduction device provided by the embodiments of the present application, a first audio file to be processed is obtained first, and then invalid components of the first audio signal in the first audio file are filtered to generate a second audio signal, The invalid component is the component in the first audio signal that cannot drive the sound-generating element to vibrate. Finally, according to the second audio signal, a second audio file is generated. In this way, invalid components in the to-be-processed first audio file can be removed, thereby avoiding the power consumption of invalid components and reducing the power consumption of the bone conduction device.

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 is a schematic diagram of a vibration element of a bone conduction device provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of a vibrating element of another bone conduction device according to an embodiment of the present application;

3 is a schematic diagram of an audio file processing method provided by an embodiment of the present application;

4 is a schematic flowchart of a method for processing an audio file provided by an embodiment of the present application;

5 is a schematic diagram of a first audio signal provided by an embodiment of the present application;

6 is a schematic diagram of a second audio signal provided by an embodiment of the present application;

7 is a schematic flowchart of another audio file processing method provided by an embodiment of the present application;

8 is a schematic structural diagram of an apparatus for processing an audio file according to an embodiment of the present application;

9 is a schematic structural diagram of another audio file processing apparatus provided by an embodiment of the present application;

10 is a schematic structural diagram of a bone conduction device according to an embodiment of the application;

11 is a schematic diagram of an audio processing circuit provided by an embodiment of the application;

FIG. 12 is a schematic diagram of a comparison between a first audio signal and a second audio signal according to an embodiment of the present application.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments 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 work fall within the protection scope of the present application.

The terms "first", "second" and the like in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein.

It should be understood that, in various embodiments of the present invention, the size of the sequence numbers of each process does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present invention. Implementation constitutes any limitation.

It should be understood that in the present invention, "comprising" and "having" and any variations 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 necessarily limited to Those steps or elements that are expressly listed may instead include other steps or elements that are not expressly listed or are inherent to the process, method, product or apparatus.

It should be understood that in the present invention, "B corresponding to A", "A corresponds to B" or "B corresponds to A" means that B is associated with A, and B can be determined according to A. Determining B based on A does not mean determining B based only on A, but also determining B based on A and/or other information.

Depending on the context, "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining."

Further, FIG. 1 is a schematic diagram of a vibration element of a bone conduction device according to an embodiment of the present application. As shown in Figure 1, if there is no invalid component in the audio signal, when there is no audio signal, the vibrating element does not have the driving force generated by the current passing through the driving element. At this time, the vibrating element will be in a structurally balanced position. The vibration stroke can be guaranteed to be the maximum vibration stroke S1 as shown in Figure 1. FIG. 2 is a schematic diagram of a vibrating element of another bone conduction device according to an embodiment of the present application. As shown in Figure 2, if there is an invalid component in the audio signal, the invalid component will generate electromagnetic force through driving elements such as coils, and the driving vibration element will be in a deviated position for a long time, but cannot be in a balanced position, thus causing the vibration of the vibrator such as the magnet. The vibration stroke becomes smaller, so that the vibration stroke S2 in FIG. 2 is significantly smaller than the vibration stroke S1 in FIG. 1 , causing the vibration element of the bone conduction device to easily collide with other elements when the volume increases.

In order to solve the above technical problems, the embodiments of the present application provide an audio file processing method, device, and bone conduction device. By filtering the invalid components of the first audio signal in the first audio file, the power consumption caused by the loss of the invalid components is avoided. , reducing the power consumption of the bone conduction device. At the same time, since the invalid component of the first audio signal is removed, the collision probability between the vibration element of the bone conduction device and other elements is also reduced, and the vibration performance of the bone conduction device is improved.

FIG. 3 is a schematic diagram of an audio file processing method provided by an embodiment of the present application. As shown in FIG. 3 , the terminal device 101 interacts with the bone conduction device 102 . After acquiring the first audio file to be processed, the terminal device 101 may first process the first audio file to filter invalid components of the first audio signal in the first audio file. Subsequently, the terminal device 101 may send the processed first audio file to the bone conduction device 102, and the bone conduction device 102 will play it.

Optionally, before playing the processed first audio file, the bone conduction device 102 may also filter invalid components of the first audio signal in the processed first audio file again.

The terminal device 101 may be a mobile phone (mobile phone), a tablet computer (pad), a computer with a wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, an industrial control Wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, smart home in the wireless terminal, etc. In this embodiment of the present application, a device for implementing a function of a terminal may be a terminal, or a device capable of supporting the terminal to implement the function, such as a chip system, and the device may be installed in the terminal. In this embodiment of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.

This embodiment of the present application does not limit the type of the bone conduction device 102 , which may include, for example, a bone conduction lollipop, a bone conduction hearing aid, and the like.

It can be understood that the above-mentioned processing method for audio files can be implemented by the processing apparatus for audio files provided in the embodiments of the present application, and the processing apparatus for audio files can be part or all of a certain device, such as bone conduction equipment, bone conduction equipment. Chips, terminal equipment, processors of terminal equipment, etc.

The technical solutions of the embodiments of the present application will be described in detail below with specific embodiments by taking an audio file processing device integrated or installed with relevant execution codes as an example. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

FIG. 4 is a schematic flowchart of an audio file processing method provided by an embodiment of the present application. Referring to FIG. 4 , the execution subject of the audio file processing method is a terminal device, and the embodiment of the present application relates to how the terminal device processes the first audio file before sending the to-be-processed first audio file to the bone conduction device for playback the process of. The processing method of the audio file mainly includes steps S201 to S204, and the details are as follows:

S201. The terminal device acquires the first audio file to be processed.

In the embodiment of the present application, before playing the first audio file, the bone conduction device may use the terminal device to obtain the first audio file to be processed, and the terminal device may process the first audio file.

Wherein, the embodiment of the present application does not limit the format of the first audio file, which may include the Moving Picture Experts Group Audio Layer III (MP3) format, the Moving Picture Experts Group (MPEG) ) format, Microsoft audio format (Windows Media Audio, WMA), etc.

S202. The terminal device filters invalid components of the first audio signal in the first audio file to generate a second audio signal, where the invalid components are components of the first audio signal that cannot drive the sound-emitting element to vibrate.

In this step, after acquiring the to-be-processed first audio file, the terminal device may use audio editing software to filter invalid components of the first audio signal in the first audio file to generate the second audio signal.

This embodiment of the present application does not limit how to filter invalid components of the first audio signal in the first audio file. In some embodiments, the terminal device may first perform spectrum calculation on the first audio signal to determine invalid components of the first audio signal. Subsequently, the terminal device removes invalid components of the first audio signal from the first audio signal to generate a second audio signal.

Wherein, the invalid components may include DC components.

It should be understood that the frequency of the first audio signal can be calculated by the spectral calculation. Since the frequency of the invalid components such as the DC component in the first audio signal is relatively low, the frequency of the effective component in the first audio signal is relatively high. Therefore, invalid components can be determined from the first signal by calculating the frequency of the first signal, and then the invalid components are removed from the first audio signal to generate a second spectral signal containing only valid components of the first audio signal . The effective component may be an AC component.

Exemplarily, FIG. 5 is a schematic diagram of a first audio signal provided by an embodiment of the present application, and FIG. 6 is a schematic diagram of a second audio signal provided by an embodiment of the present application. In the present application, there is a DC component in the first audio signal shown in FIG. 5 , and the DC component will increase the power consumption of the bone conduction device and reduce the vibration performance of the bone conduction device. Subsequently, after removing the DC component in the first audio signal, a second audio signal as shown in FIG. 6 may be generated. Since the second audio signal shown in FIG. 6 is substantially the same in waveform as the first audio signal shown in FIG. 5 , it is ensured that the second audio signal and the first audio signal are audibly substantially the same when playing. Moreover, since the second audio signal shown in FIG. 6 does not have a DC component, the power consumption of the bone conduction device can be reduced and the vibration performance of the bone conduction device can be improved, thereby improving user experience.

S203. The terminal device generates a second audio file to be played according to the second audio signal.

In this step, after generating the second audio signal, the terminal device may generate the second audio file according to the second audio signal.

It should be noted that, the embodiment of the present application does not limit how to regenerate the second audio file from the second audio signal, which can be implemented by audio editing software, for example.

S204. The terminal device sends the second audio file to the bone conduction component, and the bone conduction component is used to play the second audio file using bone as a medium.

It should be noted that this embodiment of the present application does not limit how to send the second audio file to the bone conduction component.

In some embodiments, after generating the second audio file, the terminal device may send the second audio file to the memory of the bone conduction device. Subsequently, when playing is required, the bone conduction device can extract the second audio file from the memory for playing.

In other embodiments, the terminal device can also send the second audio file to the audio playback circuit of the bone conduction device without sending the second audio file to the memory of the bone conduction device through wireless or wired means, so that The bone conduction device directly plays the second audio file, so as to achieve the purpose of reducing the power consumption of the bone conduction sounding device and improving the vibration performance.

In the audio file processing method provided by the embodiment of the present application, the terminal device first obtains the first audio file to be processed, and then the terminal device filters the invalid component of the first audio signal in the first audio file to generate the second audio signal, the invalid component It is the component of the first audio signal that cannot drive the vibration of the sound-emitting element. Finally, the terminal device generates a second audio file according to the second audio signal. In this way, invalid components in the to-be-processed first audio file can be removed, thereby avoiding the power consumption of invalid components and reducing the power consumption of the bone conduction device.

On the basis of the above embodiments, another method for processing audio files is provided below, and the method for processing audio files can directly process the first audio signal to be processed by the chip in the bone conduction device. FIG. 7 is a schematic flowchart of another audio file processing method provided by an embodiment of the present application. Referring to FIG. 7 , the processing method of the audio file mainly includes steps S301 to S303, and the details are as follows:

S301. The bone conduction device acquires a first audio file to be processed.

S302. The bone conduction device filters invalid components of the first audio signal in the first audio file to generate a second audio signal, where the invalid components are components in the first audio signal that cannot drive the sound-emitting element to vibrate.

The technical effects, technical features, and optional implementations of S301-S302 can be understood with reference to S201-S202 shown in FIG. 5 , and repeated content will not be repeated here.

S303, the bone conduction device performs audio playback under the driving of the second audio signal.

In this application, the bone conduction device can use the chip analysis method, and the program in the chip of the bone conduction device can determine the DC component of the first audio signal through spectrum analysis, remove the DC component in the first audio signal, and re- A second audio signal is generated. Finally, audio playback is performed by the bone conduction device directly driven by the second audio signal, so as to reduce the power consumption of the bone conduction sound device and improve the vibration performance.

Those of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by hardware related to program information, and the aforementioned program can be stored in a computer-readable storage medium, and when the program is executed, execute It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

FIG. 8 is a schematic structural diagram of an apparatus for processing an audio file according to an embodiment of the present application. The audio file processing apparatus may be implemented by software, hardware, or a combination of the two, such as the above-mentioned terminal equipment, and the audio file processing apparatus is used to execute the audio file processing method in the foregoing embodiment. As shown in FIG. 8 , the audio file processing apparatus 400 includes: an acquiring module 401 , a filtering module 402 , a generating module 403 and a sending module 404 .

Obtaining module 401, for obtaining the first audio file to be processed;

The filtering module 402 is used to filter the invalid component of the first audio signal in the first audio file to generate the second audio signal, and the invalid component is the component that cannot drive the vibration of the sound-emitting element in the first audio signal;

The generating module 403 is configured to generate a second audio file to be played according to the second audio signal.

In an optional implementation manner, the filtering module 402 is specifically configured to perform spectrum calculation on the first audio signal to determine the invalid component of the first audio signal; remove the invalid component of the first audio signal from the first audio signal, and generate a the second audio signal.

In an optional embodiment, the invalid component includes a DC component.

In an optional embodiment, the device further includes:

The sending module 404 is used for sending the second audio file to the bone conduction component, and the bone conduction component is used for playing the second audio file using bone as a medium.

For the audio file processing apparatus provided in the embodiment of the present application, the actions of the audio file processing method in the above-mentioned embodiment can be performed, and the implementation principle and technical effect thereof are similar, and are not repeated here.

FIG. 9 is a schematic structural diagram of another audio file processing apparatus according to an embodiment of the present application. The audio file processing apparatus can be implemented by software, hardware, or a combination of the two, such as the above-mentioned bone conduction equipment, and the audio file processing apparatus is used to execute the audio file processing method in the above embodiment. As shown in FIG. 9 , the audio file processing apparatus 500 includes: an acquiring module 501 , a filtering module 502 and a playing module 503 .

Obtaining module 501, for obtaining the first audio file to be processed;

The filtering module 502 is used to filter the invalid component of the first audio signal in the first audio file, and generate the second audio signal, and the invalid component is the component that cannot drive the sound-emitting element to vibrate in the first audio signal;

The playback module 503 is configured to perform audio playback under the driving of the second audio signal.

In an optional implementation manner, the filtering module 502 is specifically configured to perform spectrum calculation on the first audio signal to determine the invalid component of the first audio signal; remove the invalid component of the first audio signal from the first audio signal, and generate a the second audio signal.

In an optional embodiment, the invalid component includes a DC component.

It should be noted that, when the audio file processing apparatus provided in the above embodiment executes the audio file processing method, only the division of the above functional modules is used as an example for illustration. The functional modules of the device are completed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the audio file processing apparatus and the audio file processing method embodiments provided in the above-mentioned embodiments belong to the same concept, and the implementation process of the embodiment is described in the method embodiments, which will not be repeated here.

FIG. 10 is a schematic structural diagram of a bone conduction device provided by an embodiment of the present application. As shown in FIG. 10 , the bone conduction device includes an audio playback circuit 601 , an audio processing circuit 602 , and a bone conduction component 603 .

The audio processing circuit 602 is respectively connected to the audio playback circuit 601 and the bone conduction component 603 .

The audio playing circuit 601 is used for converting the target audio file to be processed into a first audio signal. It should be understood that converting the target audio file into the first audio signal can be understood as converting the data of the target audio file into an electrical signal of the first audio signal.

It should be understood that the target audio file includes a first audio file or a second audio file, and the second audio file is an audio file generated by the terminal device after removing invalid components of the first audio signal in the first audio file.

The audio processing circuit 602 is used for filtering invalid components in the first audio signal to generate a second audio signal to be played, where the invalid components are components in the first audio signal that cannot drive the sound-emitting element to vibrate.

Among them, the invalid components include DC components.

In some embodiments, the audio processing circuit includes a filter element for removing ineffective components in the first audio signal. In other embodiments, the audio processing circuit includes a chip, and the chip is configured to: filter an invalid component of the first audio signal in the target audio file to generate a second audio signal, where the invalid component is that the sound element cannot be driven in the first audio signal component of vibration.

It should be noted that, the audio processing circuit in this embodiment of the present application may only use filter elements to filter invalid components, or may only use chips to filter invalid components, and may also use both filter elements and chips to filter invalid components. filtering, which is not limited in this embodiment of the present application.

Exemplarily, FIG. 11 is a schematic diagram of an audio processing circuit provided by an embodiment of the present application, and FIG. 12 is a schematic diagram of a comparison of a first audio signal and a second audio signal provided by an embodiment of the present application. As shown in FIG. 11 , the audio processing circuit filters out the DC component in the first audio signal with the DC component through the filter element, thereby generating the second audio signal without the DC component. The waveforms of the first audio signal and the second audio signal are shown in FIG. 12 .

Wherein, the filter element includes at least one of the following: a filter, a filter inductor, and a filter capacitor.

The bone conduction component 603 is used for playing the processed first audio signal by using the bone as a medium under the driving of the second audio signal.

In some embodiments, the bone conduction assembly 603 includes a voice coil magnet and a piezoelectric ceramic vibrating plate;

The voice coil magnet is used to generate electromagnetic force under the driving of the second audio signal to vibrate the piezoelectric ceramic vibrating piece, so as to use the bone as a medium for audio playback.

In the embodiment of the present application, the DC component can be removed by the filter element in the audio processing circuit, so that the high-frequency audio AC signal can be transmitted to the bone conduction component through the audio processing circuit, and the low-frequency DC signal will be filtered out. It cannot be transmitted to the bone conduction component to achieve the purpose of reducing the power consumption of the bone conduction sounding device and improving the vibration performance.

It should be noted that, the audio file processing method and the filtering of the first audio file by the bone conduction device provided in the above embodiments can be combined with each other. Two possible combinations are provided below.

In the first method, when the bone conduction device receives the target audio file to be processed, it can simultaneously use the algorithm corresponding to the processing method of the audio file in the chip and the filter element in the audio processing circuit to perform the first step in the target audio file. The invalid components of the audio signal are filtered, thereby improving the filtering effect of the invalid components.

In the second mode, the terminal device can first use the audio editing software corresponding to the audio file processing method to filter the invalid components of the first audio signal in the first audio file, and then send it to the bone conduction device. Subsequently, the chip in the bone conduction device can use the algorithm corresponding to the audio file processing method to filter the invalid components of the first audio signal again, thereby improving the filtering effect of the invalid components.

An embodiment of the present application further provides a chip, including a processor and an interface. The interface is used to input and output data or instructions processed by the processor. The processor is configured to execute the methods provided in the above method embodiments.

The present invention also provides a computer-readable storage medium, the computer-readable storage medium may include: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory) ), a magnetic disk or an optical disk and other media that can store program codes. Specifically, the computer-readable storage medium stores program information, and the program information is used in the above method.

The embodiment of the present application further provides a program, which is used to execute the method provided by the above method embodiments when the program is executed by the processor.

Embodiments of the present application further provide a program product, such as a computer-readable storage medium, where instructions are stored in the program product, and when the program product runs on a computer, the computer executes the method provided by the above method embodiments.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the procedures or functions according to the embodiments of the present invention result in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. Computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center via wired ( For example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) means to transmit to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that a computer can access, or a data storage device such as a server, a data center, or the like that includes one or more available media integrated. Useful media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), among others.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

The above are merely examples of the present application, and are not intended to limit the present application. Various modifications and variations of this application are possible for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the scope of the claims of this application.

Claims

A method for processing audio files, comprising:

Obtain the first audio file to be processed;

Filtering invalid components of the first audio signal in the first audio file to generate a second audio signal, where the invalid components are components in the first audio signal that cannot drive the sound-emitting element to vibrate;

According to the second audio signal, a second audio file to be played is generated.
The method according to claim 1, wherein the filtering of invalid components of the first audio signal in the first audio file to generate the second audio signal comprises:

performing spectrum calculation on the first audio signal to determine an invalid component of the first audio signal;

Invalid components of the first audio signal are removed from the first audio signal to generate the second audio signal.
The method according to claim 1 or 2, wherein the invalid component comprises a DC component.
The method according to claim 1 or 2, characterized in that after generating the second audio file according to the second audio signal, the method further comprises:

The second audio file is sent to a bone conduction component for playing the second audio file using bone as a medium.
A method for processing audio files, comprising:

Obtain the first audio file to be processed;

Filtering invalid components of the first audio signal in the first audio file to generate a second audio signal, where the invalid components are components in the first audio signal that cannot drive the sound-emitting element to vibrate;

Audio playback is performed under the driving of the second audio signal.
An apparatus for processing audio files, comprising:

an acquisition module for acquiring the first audio file to be processed;

A filtering module, configured to filter the invalid component of the first audio signal in the first audio file, and generate a second audio signal, where the invalid component is a component in the first audio signal that cannot drive the sound-emitting element to vibrate;

A generating module, configured to generate a second audio file to be played according to the second audio signal.
The device according to claim 6, wherein the filtering module is specifically configured to perform spectrum calculation on the first audio signal to determine invalid components of the first audio signal; The invalid components of the first audio signal are removed in the process to generate the second audio signal.
The apparatus according to claim 6 or 7, wherein the invalid component comprises a DC component.
The device according to claim 6 or 7, wherein the device further comprises:

A sending module, configured to send the second audio file to a bone conduction component, where the bone conduction component is used to play the second audio file using bone as a medium.
An apparatus for processing audio files, comprising:

an acquisition module for acquiring the first audio file to be processed;

A filtering module, configured to filter the invalid component of the first audio signal in the first audio file, and generate a second audio signal, where the invalid component is a component in the first audio signal that cannot drive the sound-emitting element to vibrate;

A playing module is used to play audio under the driving of the second audio signal.
A bone conduction device, comprising: an audio playback circuit, an audio processing circuit and a bone conduction component;

The audio processing circuit is respectively connected with the audio playback circuit and the bone conduction component;

The audio playback circuit is used to convert the target audio file to be processed into a first audio signal;

The audio processing circuit is used to filter invalid components in the first audio signal to generate a second audio signal to be played, and the invalid components are components in the first audio signal that cannot drive the sound-emitting element to vibrate;

The bone conduction component is used for audio playback using bone as a medium under the driving of the second audio signal.
The bone conduction device according to claim 11, wherein the audio processing circuit comprises a filter element for removing invalid components in the first audio signal;

And/or, the audio processing circuit includes a chip, and the chip is configured to:

Filter invalid components of the first audio signal in the target audio file to generate a second audio signal, where the invalid components are components in the first audio signal that cannot drive the sound-emitting element to vibrate.
The bone conduction device according to claim 12, wherein the filter element comprises at least one of the following: a filter, a filter inductor, and a filter capacitor.
The bone conduction device according to any one of claims 11-13, wherein the target audio file includes a first audio file or a second audio file, and the second audio file is a terminal device that removes the first audio file. The audio file is generated after the invalid component of the first audio signal in the audio file.
The bone conduction device according to any one of claims 11-13, wherein the bone conduction component comprises a voice coil magnet and a piezoelectric ceramic vibrating piece;

The voice coil magnet is used for generating electromagnetic force under the driving of the second audio signal to vibrate the piezoelectric ceramic vibrating piece, so as to use bone as a medium for audio playback.
The bone conduction device according to any one of claims 11-13, wherein the invalid component includes a direct current component.
A computer program product comprising computer instructions, characterized in that, when the computer instructions are executed by a processor, the method of any one of claims 1-5 is implemented.
A computer storage medium, characterized in that the computer storage medium stores a plurality of instructions, and the instructions are adapted to be loaded by a processor and execute the method according to any one of claims 1-5.
An electronic device, characterized by comprising: a processor and a memory; wherein, the memory stores a computer program, and the computer program is adapted to be loaded by the processor and execute the method according to any one of claims 1-5 method.