CN213522355U - Digital audio processing chip - Google Patents
Digital audio processing chip Download PDFInfo
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- CN213522355U CN213522355U CN202023054780.8U CN202023054780U CN213522355U CN 213522355 U CN213522355 U CN 213522355U CN 202023054780 U CN202023054780 U CN 202023054780U CN 213522355 U CN213522355 U CN 213522355U
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Abstract
The utility model discloses a chip is handled to digital audio, include: a control module; the audio acquisition unit comprises a sound acquisition module, an audio filter and a sound sensor; the audio power amplifier unit comprises a digital audio processor, an audio signal distributor, an audio amplifier and a USB transmission port; the control module is electrically connected with the audio acquisition unit through the sound sensor, and the control module is electrically connected with the audio power amplification unit through the digital audio processor; the utility model discloses a digital audio processor, audio signal distributor and audio amplifier handle audio signal, export audio signal again, can realize certain phase correction to correct the phase distortion on the transmission line to a certain extent, thereby guaranteed that audio signal's output is stable, improved audio signal's output quality.
Description
Technical Field
The utility model relates to a digital audio frequency processing technology field specifically is a digital audio frequency processing chip.
Background
Digital audio is a technology for recording, storing, editing, compressing or playing sound by utilizing a digital means, and is a brand new sound processing means formed along with the development of digital signal processing technology, computer technology and multimedia technology.
The digital audio processing chip is a digital audio signal processing structure, firstly converting analog signals input by multiple channels into digital signals, then carrying out a series of tunable algorithm processing on the digital signals, meeting the application requirements of improving tone quality, matrix sound mixing, noise elimination, echo elimination, feedback elimination and the like, and outputting the analog signals of the multiple channels through digital-to-analog conversion.
However, the existing digital audio processing chip has the following defects when in use:
when the existing digital audio processing chip works, the audio signal is doped with noise, and the audio signal is easy to distort after being decoded, so that the output quality of the audio signal is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a chip is handled to digital audio to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a digital audio processing chip, comprising:
a control module;
the audio acquisition unit comprises a sound acquisition module, an audio filter and a sound sensor, wherein the signal output end of the sound acquisition module is electrically connected with the signal input end of the audio filter, and the signal output end of the audio filter is electrically connected with the signal input end of the sound sensor;
the audio power amplifier unit comprises a digital audio processor, an audio signal distributor, an audio amplifier and a USB transmission port, wherein the signal output end of the digital audio processor is electrically connected with the signal input end of the audio signal distributor, the signal output end of the audio signal distributor is electrically connected with the signal input end of the audio amplifier, and the signal output end of the audio amplifier is electrically connected with the signal input end of the USB transmission port;
the control module is electrically connected with the audio acquisition unit through the sound sensor, and the control module is electrically connected with the audio power amplifier unit through the digital audio processor.
Wherein, still include: the data storage module is electrically connected with the control module and the data storage module, and the data storage module is used for storing the audio signals collected by the audio collection unit.
Wherein, still include: the power supply module, control module with electric connection between the power supply module, power supply module includes secondary battery and external power supply, external power supply is used for providing power and for digital audio processing chip secondary battery charges.
Wherein, still include: the audio power amplification unit is electrically connected with the loudspeaker through the USB transmission port, and the loudspeaker is used for playing the audio signal output by the audio power amplification unit.
The sound collection module adopts a microphone.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses an audio filter filters the noise among the audio acquisition unit collection audio signal, thereby guarantee audio acquisition unit collection audio signal's purity, and audio power amplifier unit loops through digital audio processor, audio signal distributor and audio amplifier handle audio signal, again with audio signal output, can realize improving tone quality, the matrix sound mixing, make an uproar, the mesh of echo disappears, and can realize certain phase correction, with correct the phase distortion on the transmission line to a certain extent, thereby guaranteed audio signal's output stability, audio signal's output quality has been improved.
Drawings
Fig. 1 is a schematic diagram of the structure of the control system of the present invention.
In the figure: 10. a control module; 20. an audio acquisition unit; 21. a sound collection module; 22. an audio filter; 23. a sound sensor; 30. an audio power amplifier unit; 31. a digital audio processor; 32. an audio signal distributor; 33. an audio amplifier; 34. a USB transmission port; 40. a data storage module; 50. a power supply module; 60. a loudspeaker.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a digital audio processing chip, comprising: the device comprises a control module 10, an audio acquisition unit 20, an audio power amplifier unit 30, a data storage module 40, a power supply module 50 and a loudspeaker 60.
The control module 10 may be a circuit including at least one processor, a circuit including at least one single chip, or a combination of multiple circuits or chips, as long as the corresponding functions can be realized. It will be understood to those skilled in the art that the control module 10 may also implement the corresponding functions in a pure hardware manner for a common circuit composed of an amplifier, a comparator, a triode, a MOS transistor, and the like.
The audio acquisition unit 20 includes a sound acquisition module 21, an audio filter 22, and a sound sensor 23, wherein the signal output end of the sound acquisition module 21 is electrically connected to the signal input end of the audio filter 22, and the signal output end of the audio filter 22 is electrically connected to the signal input end of the sound sensor 23.
The control module 10 is electrically connected to the audio acquisition unit 20 through the sound sensor 23.
The sound collection module 21 adopts a microphone, and the sound collection module 21 collects audio information.
The noise in the audio information collected by the sound collection module 21 is filtered by the audio filter 22, so that the purity of the audio information collected by the audio collection unit 20 is ensured.
The sound sensor 23 is configured to receive the audio information filtered by the audio filter 22, and then convert the audio information into an electrical signal through the sound sensor 23 and transmit the electrical signal to the control module 10.
The audio power amplifier unit 30 includes a digital audio processor 31, an audio signal distributor 32, an audio amplifier 33 and a USB transmission port 34, wherein a signal output end of the digital audio processor 31 is electrically connected to a signal input end of the audio signal distributor 32, a signal output end of the audio signal distributor 32 is electrically connected to a signal input end of the audio amplifier 33, and a signal output end of the audio amplifier 33 is electrically connected to a signal input end of the USB transmission port 34.
The control module 10 is electrically connected to the audio power amplifier unit 30 through the digital audio processor 31.
The digital audio processor 31 is a digital audio signal processing device, and converts analog signals input by multiple channels into digital signals, then performs a series of tunable algorithm processing on the digital signals, so as to meet application requirements of improving tone quality, matrix sound mixing, noise elimination, echo elimination, feedback elimination and the like, and outputs the analog signals of the multiple channels through digital-to-analog conversion.
The digital audio processor 31 can perform noise elimination, matrix audio mixing and echo elimination on the audio signal at the output end of the audio power amplification unit 30.
The audio signal distributor 32 may distribute one audio input signal into multiple audio output signals, and may implement a certain phase correction while distributing the audio output signals by using a dedicated audio operational amplifier, so as to correct the phase distortion on the transmission line to a certain extent.
Among other things, the audio amplifier 33 is able to achieve the highest efficiency while maintaining the lowest distortion.
The speaker 60 and the audio power amplifier unit 30 can be electrically connected through the USB transmission port 34, and then the audio information output by the audio power amplifier unit 30 is played through the speaker 60.
The control module 10 is electrically connected to the data storage module 40, and the data storage module 40 is used for storing the audio signal collected by the audio collecting unit 20.
The data storage module 40 may be an erasable programmable read-only memory, or may be a random access memory, and the data storage module 40 may read or write various data information and/or program codes.
The control module 10 is electrically connected to the power supply module 50, and the power supply module 50 includes a secondary battery and an external power supply, and the external power supply is used for providing power for the digital audio processing chip and charging the secondary battery.
The audio power amplifier unit 30 is electrically connected to the speaker 60 through the USB port 34, and the speaker 60 is used for playing the audio signal output by the audio power amplifier unit 30.
The working principle is as follows: when the device is used, the audio information is acquired through the sound acquisition module 21, then noise in the audio signal acquired by the sound acquisition module 21 is filtered through the audio filter 22, so that the purity of the audio signal acquired by the audio acquisition unit 20 is ensured, then the audio information is converted into an electric signal through the sound sensor 23 and is uploaded to the control module 10, then the audio power amplification unit 30 processes the audio signal sequentially through the digital audio processor 31, the audio signal distributor 32 and the audio amplifier 33, then the processed audio information is transmitted to the loudspeaker 60 through the USB transmission port 34, and the audio is played through the loudspeaker 60, so that the aims of improving tone quality, mixing matrix, eliminating noise and eliminating echo can be achieved, certain phase correction can be achieved, phase distortion on a transmission line is corrected to a certain degree, and stable output of the audio signal is ensured, the output quality of the audio signal is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A digital audio processing chip, comprising:
a control module (10);
the audio acquisition unit (20), the audio acquisition unit (20) includes a sound acquisition module (21), an audio filter (22) and a sound sensor (23), the signal output end of the sound acquisition module (21) is electrically connected with the signal input end of the audio filter (22), and the signal output end of the audio filter (22) is electrically connected with the signal input end of the sound sensor (23);
the audio power amplifier comprises an audio power amplifier unit (30), wherein the audio power amplifier unit (30) comprises a digital audio processor (31), an audio signal distributor (32), an audio amplifier (33) and a USB transmission port (34), a signal output end of the digital audio processor (31) is electrically connected with a signal input end of the audio signal distributor (32), a signal output end of the audio signal distributor (32) is electrically connected with a signal input end of the audio amplifier (33), and a signal output end of the audio amplifier (33) is electrically connected with a signal input end of the USB transmission port (34);
the control module (10) is electrically connected with the audio acquisition unit (20) through the sound sensor (23), and the control module (10) is electrically connected with the audio power amplification unit (30) through the digital audio processor (31).
2. A digital audio processing chip according to claim 1, further comprising:
the data storage module (40), the control module (10) with between the data storage module (40) electric connection, data storage module (40) are used for storing the audio signal that audio acquisition unit (20) gathered.
3. A digital audio processing chip according to claim 1, further comprising:
the power supply module (50), control module (10) with electric connection between power supply module (50), power supply module (50) include secondary battery and external power supply, external power supply is used for providing power and for digital audio frequency processing chip secondary battery charges.
4. A digital audio processing chip according to claim 1, further comprising:
the audio power amplifier unit (30) is electrically connected with the loudspeaker (60) through the USB transmission port (34), and the loudspeaker (60) is used for playing audio signals output by the audio power amplifier unit (30).
5. A digital audio processing chip according to claim 1, comprising:
the sound collection module (21) adopts a microphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023054780.8U CN213522355U (en) | 2020-12-17 | 2020-12-17 | Digital audio processing chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023054780.8U CN213522355U (en) | 2020-12-17 | 2020-12-17 | Digital audio processing chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213522355U true CN213522355U (en) | 2021-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023054780.8U Active CN213522355U (en) | 2020-12-17 | 2020-12-17 | Digital audio processing chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213522355U (en) |
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2020
- 2020-12-17 CN CN202023054780.8U patent/CN213522355U/en active Active
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