CN108877821B - Audio processing device and method - Google Patents

Abstract

An audio processing device includes: a first and a second analog-to-digital conversion module, a register, and a processing module. The processing module executes a first audio application corresponding to a first analog input audio signal, and allocates the first analog input audio signal to the first analog-to-digital conversion module. When the processing module determines that the second audio application also corresponds to the first analog input audio signal, the shared configuration information is written into the register so that the first analog-to-digital conversion module reads the register and processes the first analog input audio signal. When the processing module determines that the second audio application corresponds to a second analog input audio signal, the second analog input audio signal is allocated to the second analog-to-digital conversion module so that the first and second analog-to-digital conversion modules process the first and second analog input audio signals respectively.

Description

Audio processing device and method

technical field

The present invention relates to an audio processing technology, and more particularly, to an audio processing apparatus and method.

Background technique

In the processing of the sound signal, it is often necessary to process the sound signal by an analog-to-digital conversion module, so as to convert the sound signal from an analog form to a digital form.

In some usage scenarios, the audio processing device will simultaneously receive multiple input audios corresponding to different audio applications. However, input audio corresponding to different audio applications may come from the same audio source. For example, speech recognition and control software and recording software may simultaneously process sound received by a single microphone. In this case, if the audio processing device allocates different analogs to the digital conversion module for different input audios, it will cause a waste of hardware resources.

Therefore, how to design a new audio processing device and method to solve the above problems is an urgent problem to be solved in the industry.

SUMMARY OF THE INVENTION

Therefore, one aspect of the present invention is to provide an audio processing device including: a first analog-to-digital conversion module, a second analog-to-digital conversion module, a register, and a processing module. The processing module is configured to execute a first audio application program corresponding to the first analog input audio, and determine that the first analog input audio comes from an audio source, so as to assign the first analog input audio to the first analog-to-digital conversion module. When the processing module executes the second audio application corresponding to the second analog input audio, and determines that the second audio application and the first audio application also correspond to the first analog input audio, the processing module configures the shared configuration Information is written in the register so that the first analog-to-digital conversion module reads the register and processes the first analog input audio. When the processing module determines that the second audio application program corresponds to the second analog input audio that is not from the audio source, the processing module is configured to assign the second analog input audio to the second analog-to-digital conversion module, so that the The analog-to-digital conversion module processes the first analog input audio and the second analog-to-digital conversion module processes the second analog input audio.

Another aspect of the present invention is to provide an audio processing method, which is applied to an audio processing device, and includes the following steps. Make the processing module execute the first audio application program corresponding to the first analog input audio, and determine that the first analog input audio comes from an audio source, so as to assign the first analog input audio to the first analog-to-digital conversion module; make the processing The module executes the second audio application, and determines whether the second audio application and the first audio application also correspond to the first analog input audio; when the second audio application and the first audio application also correspond to the first analog When audio is input, the processing module writes the shared configuration information into the register, so that the first analog-to-digital conversion module reads the register and processes the first analog input audio; and when the second audio application program When corresponding to the second analog input audio that is not from the audio source, the processing module assigns the second analog input audio to the second analog-to-digital conversion module for processing, so that the first analog-to-digital conversion module processes the first analog-to-digital conversion module. An analog input audio and the second analog input audio is processed by a second analog-to-digital conversion module.

The advantage of applying the present invention is that when the first analog input audio and the second analog input audio actually come from the same audio source, the audio processing device can use only one analog-to-digital conversion module for the first analog input audio and the second analog input audio. Input audio for processing. Therefore, for the audio processing device, the hardware cost for performing the analog-to-digital conversion function can be greatly reduced.

Description of drawings

FIG. 1A and FIG. 1B are respectively block diagrams of an audio processing apparatus in different operating situations according to an embodiment of the present invention; and

FIG. 2 is a flowchart of an audio processing method according to an embodiment of the present invention.

【Symbol Description】

1: Audio processing device 100: First analog-to-digital conversion module

102: the second analog to digital conversion module; 104: the temporary register;

106: the first access module; 108: the second access module;

110: processing module; 112A, 112B: audio source;

120: Codec unit; 122: Audio controller;

200: audio processing method; 201-206: steps;

ANA1: The first analog input audio; ANA2: The second analog input audio;

APP1: the first audio application; APP2: the second audio application;

DIG1: First digital audio; DIG2: Second digital audio;

DRI: Driver; INFO: Shared configuration information.

Detailed ways

Please refer to FIG. 1A and FIG. 1B at the same time. FIG. 1A and FIG. 1B are respectively block diagrams of an audio processing apparatus 1 in different operating situations according to an embodiment of the present invention.

The audio processing device 1 includes: a first analog-to-digital conversion module 100, a second analog-to-digital conversion module 102, a register 104, a first access module 106, a second access module 108, and a processing module 110.

In one embodiment, the audio processing apparatus 1 is set in a computer system (not shown). The first analog-to-digital conversion module 100 , the second analog-to-digital conversion module 102 , the register 104 , the first access module 106 , and the second access module 108 can be arranged in, for example, but not limited to In the audio processing chip (not shown) of the computer system.

In one embodiment, the first analog-to-digital conversion module 100, the second analog-to-digital conversion module 102, and the register 104 may be disposed in, for example, but not limited to, a coder-decoder (CODEC) of an audio processing chip. ) in unit 120.

The first access module 106 and the second access module 108 may be disposed in, for example, but not limited to, the audio controller 122 of the audio processing chip. In one embodiment, the first access module 106 and the second access module 108 are respectively direct memory access (DMA) modules.

The processing module 110 is, for example, but not limited to, a central processing unit of a computer system. The processing module 110 can be configured to execute multiple applications. In one embodiment, the processing module 110 can execute, for example, but not limited to, the driver program DRI of the audio processing chip, so as to drive the operation of each module in the audio processing chip. In addition, the processing module 110 can execute an audio-related application program for audio processing.

The processing module 110 can execute the first audio application program APP1, and determine that the first analog input audio ANA1 corresponding to the first audio application program APP1 is received from the audio source 112A.

In one embodiment, the first audio application APP1 may be, for example, but not limited to, voice recognition and control software. The audio source 112A may receive the first analog input audio ANA1 by, for example, but not limited to, a microphone.

In one embodiment, the voice recognition and control software can be, for example, but not limited to, a background program that operates continuously, receives the first analog input audio ANA1 through a microphone, and constantly monitors whether the first analog input audio ANA1 exists. There are voice control commands. In one embodiment, the processing module 110 may further execute voice recognition and control software, and perform corresponding operations according to the voice control command in the first analog input audio ANA1.

In one embodiment, the processing module 110 writes configuration information in the register 104 so that the first analog input audio ANA1 is allocated to the first analog-to-digital conversion module 100 .

In one embodiment, the processing module 110 may execute a second audio application APP2 different from the first audio application APP1 while executing the first audio application APP1. In one embodiment, the second audio application APP2 is, for example, but not limited to, a recording software. The recording software can be executed according to, for example, but not limited to, the user's operation input to the computer system.

The processing module 110 will determine whether the corresponding second audio application APP2 and the first audio application APP1 also correspond to the first analog input audio ANA1.

When the processing module 110 determines that the second audio application APP2 and the first audio application APP1 also correspond to the first analog input audio ANA1, the shared configuration information INFO is written in the register 104, so that the first analog to The digital conversion module 100 reads the shared configuration information INFO. The first analog-to-digital conversion module 100 will thus know that the first audio application APP1 and the second audio application APP2 actually receive the first analog input audio ANA1 from the same audio source 112A.

Therefore, the first analog-to-digital conversion module 100 will process the first analog input audio ANA1 after reading the configuration information (not shown) and the shared configuration information INFO in the register 104 to convert it into the first analog input audio ANA1. The digital audio DIG1 and the second digital audio DIG2. Further, the first analog-to-digital conversion module 100 transmits the first digital audio DIG1 to the first access module 106 for temporary storage, and transmits the second digital audio DIG2 to the second access module 108 for temporary storage .

When the processing module 110 determines that the second audio application program APP2 corresponds to the second analog input audio ANA2 not from the audio source 112A but from another audio source 112B, it will write another audio signal into the register 104 A configuration information for assigning the second analog input audio ANA2 to the second analog-to-digital conversion module 102 for processing. In one embodiment, the audio source 112B may receive the second analog input audio ANA2 in a line-in manner, such as, but not limited to, an external electronic device.

As shown in FIG. 1B , the second analog-to-digital conversion module 102 will process the second analog input audio ANA2 after reading the configuration information in the register 104 to convert it into the second digital audio DIG2, and convert The second digital audio DIG2 is sent to the second access module 108 for temporary storage.

To sum up, when the second audio application program APP2 and the first audio application program APP1 also correspond to the first analog input audio ANA1, the audio processing device 1 does not need to use two analog-to-digital conversion modules, and can only use the The first analog-to-digital conversion module 100 processes the first analog input audio ANA1. Therefore, for the audio processing apparatus 1, the hardware cost for performing the analog-to-digital conversion function can be greatly reduced.

It should be noted that, in the above embodiment, the objects of the audio source 112A and the audio source 112B receiving the analog input audio are just an example. In other embodiments, audio source 112A and audio source 112B may also receive analog input audio from other devices.

Please refer to Figure 2. FIG. 2 is a flowchart of an audio processing method 200 according to an embodiment of the present invention. The audio processing method 200 can be applied to the audio processing apparatus 1 shown in FIG. 1A and FIG. 1B . In one embodiment, the processing module 110 in the audio processing apparatus 1 can execute the audio processing method 200 by executing the driver DRI of the above-mentioned audio processing chip. The audio processing method 200 includes the following steps.

In step 201, the processing module 110 is made to execute a first audio application program APP1 corresponding to the first analog input audio ANA1.

In step 202 , the processing module 110 determines that the first analog input audio ANA1 comes from the audio source 112A, so as to assign the first analog input audio ANA1 to the first analog-to-digital conversion module 100 .

In step 203, the processing module 110 is made to execute the second audio application program APP2 corresponding to the second analog input audio ANA2.

In step 204, the processing module 110 is made to determine whether the first audio application APP1 and the second audio application APP2 also correspond to the first analog input audio ANA1.

When the first audio application APP1 and the second audio application APP2 also correspond to the first analog input audio ANA1, the process proceeds to step 205, so that the processing module 110 writes the shared configuration information INFO into the register 104, So that the first analog-to-digital conversion module 100 reads the register 104 and processes the first analog input audio ANA1.

When the second audio application corresponds to the second analog input audio ANA2 that does not come from the audio source 112A, the flow proceeds to step 206 to cause the processing module 110 to assign the second analog input audio ANA2 to the second analog-to-digital conversion module The group 102 includes processing the first analog input audio ANA1 by the first analog-to-digital conversion module 100 and processing the second analog input audio ANA2 by the second analog-to-digital conversion module 102 .

Although the content of this case has been disclosed as above in an embodiment, it is not configured to limit the content of this case. Anyone who is familiar with this technique can make various changes and modifications without departing from the spirit and scope of the content of this case. Therefore, the content of this case is The scope of protection shall be determined by the scope of the appended patent application.

Claims (10)

1. An audio processing device, comprising: a first analog-to-digital conversion module; a second analog-to-digital conversion module; a scratchpad; and a processing module configured to execute a first audio application program corresponding to a first analog input audio, and determine that the first analog input audio comes from an audio source, so as to assign the first analog input audio to the first analog input audio Analog to digital conversion module; When the processing module executes a second audio application program and determines that the second audio application program and the first audio application program also correspond to the first analog input audio, the processing module is configured to configure a shared configuration information is written in the register, so that the first analog-to-digital conversion module reads the register and processes the first analog input audio; When the processing module determines that the second audio application corresponds to a second analog input audio not from the audio source, the processing module is configured to assign the second analog input audio to the second analog-to-digital a conversion module, wherein the first analog-to-digital conversion module processes the first analog input audio and the second analog-to-digital conversion module processes the second analog input audio. 2 . The audio processing device according to claim 1 , wherein the first audio application program and the second audio application program are respectively a voice recognition and control software or a recording software. 3 . 3 . The audio processing device of claim 1 , wherein the first analog-to-digital conversion module and the second analog-to-digital conversion module are disposed in a coder-decoder (CODEC) unit. 4 . 4. The audio processing device of claim 1, further comprising a first access module and a second access module, the processing module is further configured to use the first analog-to-digital conversion module according to the a first digital audio stream generated by the first analog input audio processing is transmitted to the first access module; When the second analog input audio also comes from the audio source, the first analog-to-digital conversion module transmits a second digital audio stream generated by processing the second analog input audio to the second accessor modules; and When the second analog input audio does not come from the audio source, the second analog-to-digital conversion module transmits the second digital audio stream generated by processing the second analog input audio to the second access module Group. 5. The audio processing device of claim 4, wherein the first access module and the second access module are disposed in an audio controller. 6. The audio processing device of claim 4, wherein the first access module and the second access module are respectively a direct memory access (DMA) module. 7. An audio processing method, applied in an audio processing device, comprising: Make a processing module execute a first audio application program corresponding to a first analog input audio, and determine that the first analog input audio comes from an audio source, so as to assign the first analog input audio to a first analog to digital conversion module; causing the processing module to execute a second audio application program, and determining whether the second audio application program and the first audio application program also correspond to the first analog input audio; When the second audio application and the first audio application also correspond to the first analog input audio, the processing module writes a shared configuration information into a register, so that the first analog to a digital conversion module to read the register and process the first analog input audio; and When the second audio application corresponds to a second analog input audio that does not come from the audio source, causing the processing module to assign the second analog input audio to a second analog-to-digital conversion module, so that the The first analog-to-digital conversion module processes the first analog input audio and the second analog-to-digital conversion module processes the second analog input audio. 8. The audio processing method according to claim 7, wherein the first audio application program and the second audio application program are respectively a voice recognition and control software or a recording software. 9 . The audio processing method of claim 7 , wherein the first analog-to-digital conversion module and the second analog-to-digital conversion module are disposed in an encoding/decoding unit. 10 . 10. The audio processing method according to claim 7, further comprising: causing the processing module to transmit a first digital audio stream generated by processing the first analog-to-digital conversion module according to the first analog input audio to a first access module; When the second analog input audio also comes from the audio source, enabling the first analog-to-digital conversion module to transmit a second digital audio stream generated by processing the second analog input audio to a second accessor modules; and When the second analog input audio does not come from the audio source, make the second analog-to-digital conversion module transmit the second digital audio stream generated by processing the second analog input audio to the second access module.

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