CN106454637A - Audio module silencing structure and method of server system - Google Patents
Audio module silencing structure and method of server system Download PDFInfo
- Publication number
- CN106454637A CN106454637A CN201611168241.2A CN201611168241A CN106454637A CN 106454637 A CN106454637 A CN 106454637A CN 201611168241 A CN201611168241 A CN 201611168241A CN 106454637 A CN106454637 A CN 106454637A
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- chip
- audio
- audio signal
- server system
- echo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention relates to an audio module silencing structure and method of a server system. The audio module silencing structure comprises a main chip, the main chip is characterized in that an audio signal output end of the main chip is connected with an audio signal conversion circuit, the audio signal conversion circuit is connected with a secondary chip; an echo eliminating module is embedded in the secondary chip; the input end of the secondary chip is connected with a microphone input signal source through an A/D conversion circuit, and the output end of the secondary chip is connected with a loudspeaker through an D/A conversion circuit; and the secondary chip is an echo eliminating chip. The storage resource and the memory resource of the main chip are released by use of a chip combination mode, and the secondary chip is used for eliminating the echo; not only is the connection quality improved, but also the sound is clear; furthermore, the occupied space to the main chip CPU in the echo eliminating process is sufficiently reduced, the function burden of the main chip CPU is lowered, and the running efficiency of the main chip is improved.
Description
Technical field
The invention belongs to server echo cancellation technology field is and in particular to a kind of audio-frequency module of server system is eliminated the noise
Structure and method.
Background technology
The traditional application of echo cancellation technology is various embedded device, including various Telecommunication network equipments and terminal
Equipment；The network equipment such as switch, gateway etc., terminal then includes mobile telephone terminal, video conference terminal etc..
At present, server more and more penetrates in daily life, and server intercommunication is Audiotechnica development
Major progress.Presence yet with echoing is so that people, when uploading voice messaging using server, can cause sound
The erroneous judgement of message number.In place of this is the deficiencies in the prior art.
Therefore, for drawbacks described above of the prior art, provide the audio-frequency module designing a kind of server system to eliminate the noise and tie
Structure and method；To solve above-mentioned technical problem, it is necessary.
Content of the invention
It is an object of the invention to, the defect existing for above-mentioned prior art, provide and design a kind of server system
Audio-frequency module noise elimination structure and method, to solve above-mentioned technical problem.
For achieving the above object, the present invention provides technical scheme below：
A kind of audio-frequency module noise elimination structure of server system, it includes master chip；It is characterized in that：The audio signal of master chip
Output is connected with audio signal change-over circuit, and described audio signal change-over circuit is connected with double-path chip, in described double-path chip
It is embedded with echo cancellation module, the input of double-path chip is connected with microphone input signal source by analog to digital conversion circuit, two grades
The outfan of chip is connected with speaker by D/A converting circuit；Described double-path chip is echo cancellor chip.
Preferably, described master chip is ARM chip.
Preferably, described echo cancellor chip is ATH8809 echo cancellor chip；Can not only effectively be eliminated using this
Echo, and the circuit between master chip is connected simply.
Preferably, the audio signal of described master chip audio signal output is analysable audio frequency quotation marks；Analysable sound
Frequency signal can be parsed by the late-class circuit of master chip, resolves to the audio signal that double-path chip can be processed.
Preferably, described analysable audio signal is IIS signal.
Preferably, it is embedded with echo cancellation algorithm in described echo cancellation module；By the echo cancellation algorithm being embedded
Eliminate echo.
The present invention gives a kind of audio-frequency module sound reduction method of server system it is characterised in that comprising the following steps：
Step 1）：Acoustical signal is exported to audio signal change-over circuit by master chip by audio signal output end；
Step 2）：The audio signal that audio signal change-over circuit exports to master chip parses, and resolving to double-path chip can
The audio signal processing；
Step 3）：Echo cancellation module in double-path chip is to step 2）In parsing after audio signal carry out eliminate echo at
Reason.
Preferably, step 1）In, the audio signal of master chip audio signal output is analysable audio frequency quotation marks；Can parse
Audio signal can be parsed by the late-class circuit of master chip, resolve to the audio signal that double-path chip can be processed.
Preferably, step 3）In, double-path chip is echo cancellor chip, is embedded with echo and disappears in described echo cancellation module
Except algorithm；Echo is eliminated by the echo cancellation algorithm being embedded.
The beneficial effects of the present invention is, the present invention adopts chip portfolio mode, the release storage resource of master chip and interior
Deposit resource, echo cancellor is realized using double-path chip；Not only improve speech quality, and clear sound；Additionally, being substantially reduced back
Sound eliminates process and master chip CPU is taken up room, and reduces the function burden of master chip CPU, there is provided the operation effect of master chip
Rate.Additionally, design principle of the present invention is reliable, structure is simple, has application prospect widely.
As can be seen here, the present invention compared with prior art, has prominent substantive distinguishing features and significantly improves, its enforcement
Beneficial effect be also obvious.
Brief description
Fig. 1 is a kind of schematic diagram of the audio-frequency module noise elimination structure of server system that the present invention provides.
Wherein, 1- master chip, 2- audio signal change-over circuit, 3- double-path chip, 4- analog to digital conversion circuit, 5- mike is defeated
Enter signal source, 6- D/A converting circuit, 7- speaker.
Specific embodiment
The present invention will be described in detail below in conjunction with the accompanying drawings and by specific embodiment, and following examples are to the present invention
Explanation, and the invention is not limited in implementation below.
As shown in figure 1, a kind of audio-frequency module noise elimination structure of server system of present invention offer, it includes master chip 1；
The audio signal output of master chip is connected with audio signal change-over circuit 2, and described audio signal change-over circuit 2 is connected with two grades of cores
Piece 3, described double-path chip 3 is embedded with echo cancellation module, and the input of double-path chip is connected with wheat by analog to digital conversion circuit 4
Gram wind input signal source 5, the outfan of double-path chip is connected with speaker 7 by D/A converting circuit 6；Described double-path chip
For echo cancellor chip.
In the technical program, described master chip is ARM chip.
Described echo cancellor chip is ATH8809 echo cancellor chip；Echo effectively can not only be eliminated using this, and
And the circuit between master chip is connected simply.
The audio signal of described master chip audio signal output is analysable audio frequency quotation marks；Analysable audio signal energy
Enough parsed by the late-class circuit of master chip, resolved to the audio signal that double-path chip can be processed.
Described analysable audio signal is IIS signal.
It is embedded with echo cancellation algorithm in described echo cancellation module；Eliminated back by the echo cancellation algorithm being embedded
Sound.
Double-path chip in the technical program can not only eliminate the echo of the acoustical signal drawn from master chip, Er Qieneng
Enough echoes eliminating the directly sound by microphone input signal source entrance double-path chip.Double-path chip is carried out to acoustical signal
After echo cancellation process, broadcasted by speaker.
The present invention gives a kind of audio-frequency module sound reduction method of server system it is characterised in that comprising the following steps：
Step 1）：Acoustical signal is exported to audio signal change-over circuit by master chip by audio signal output end；
Step 2）：The audio signal that audio signal change-over circuit exports to master chip parses, and resolving to double-path chip can
The audio signal processing；
Step 3）：Echo cancellation module in double-path chip is to step 2）In parsing after audio signal carry out eliminate echo at
Reason.
Step 1）In, the audio signal of master chip audio signal output is analysable audio frequency quotation marks；Analysable audio frequency
Signal can be parsed by the late-class circuit of master chip, resolves to the audio signal that double-path chip can be processed.
Step 3）In, double-path chip is echo cancellor chip, is embedded with echo cancellation algorithm in described echo cancellation module；
Echo is eliminated by the echo cancellation algorithm being embedded.
Only the preferred embodiment of the present invention disclosed above, but the present invention is not limited to this, any this area
What technical staff can think does not have creative change, and some improvement made without departing from the principles of the present invention and
Retouching, all should be within the scope of the present invention.
Claims (9)
1. the audio-frequency module noise elimination structure of a kind of server system, it includes master chip；It is characterized in that：The audio frequency letter of master chip
Number output is connected with audio signal change-over circuit, and described audio signal change-over circuit is connected with double-path chip, described double-path chip
It is embedded with echo cancellation module, the input of double-path chip is connected with microphone input signal source by analog to digital conversion circuit, two
The outfan of level chip is connected with speaker by D/A converting circuit；Described double-path chip is echo cancellor chip.
2. a kind of server system according to claim 1 audio-frequency module noise elimination structure it is characterised in that：Described master
Chip is ARM chip.
3. a kind of server system according to claim 2 audio-frequency module noise elimination structure it is characterised in that：Described returns
It is ATH8809 echo cancellor chip that sound eliminates chip.
4. a kind of server system according to claim 1 or 2 or 3 audio-frequency module noise elimination structure it is characterised in that：Institute
The audio signal stating the output of master chip audio signal is analysable audio frequency quotation marks.
5. a kind of server system according to claim 4 audio-frequency module noise elimination structure it is characterised in that：Described solve
The audio signal of analysis is IIS signal.
6. a kind of server system according to claim 5 audio-frequency module noise elimination structure it is characterised in that：Described returns
It is embedded with echo cancellation algorithm in sound cancellation module.
7. a kind of audio-frequency module sound reduction method of server system is it is characterised in that comprise the following steps：
Step 1）：Acoustical signal is exported to audio signal change-over circuit by master chip by audio signal output end；
Step 2）：The audio signal that audio signal change-over circuit exports to master chip parses, and resolving to double-path chip can
The audio signal processing；
Step 3）：Echo cancellation module in double-path chip is to step 2）In parsing after audio signal carry out eliminate echo at
Reason.
8. a kind of audio-frequency module sound reduction method of server system according to claim 7 is it is characterised in that step 1）
In, the audio signal of master chip audio signal output is analysable audio frequency quotation marks.
9. a kind of audio-frequency module sound reduction method of the server system according to claim 7 or 8 is it is characterised in that step
3）In, double-path chip is echo cancellor chip, is embedded with echo cancellation algorithm in described echo cancellation module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168241.2A CN106454637A (en) | 2016-12-16 | 2016-12-16 | Audio module silencing structure and method of server system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168241.2A CN106454637A (en) | 2016-12-16 | 2016-12-16 | Audio module silencing structure and method of server system |
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| Publication Number | Publication Date |
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| CN106454637A true CN106454637A (en) | 2017-02-22 |
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ID=58216778
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611168241.2A Pending CN106454637A (en) | 2016-12-16 | 2016-12-16 | Audio module silencing structure and method of server system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117116258A (en) * | 2023-04-12 | 2023-11-24 | 荣耀终端有限公司 | Voice awakening method and electronic equipment |
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| US20050180557A1 (en) * | 2004-02-18 | 2005-08-18 | Norton William E.Iii | Echo canceller for removing speaker to microphone feedback on a personal computer |
| CN101465901A (en) * | 2007-12-18 | 2009-06-24 | 康佳集团股份有限公司 | Mobile phone and method for processing down voice |
| CN202340252U (en) * | 2011-11-18 | 2012-07-18 | 镁思锑科技（杭州）有限公司 | Communication cell phone with functions of eliminating echoes and noise for mining |
| CN202372884U (en) * | 2011-10-26 | 2012-08-08 | 浙江西谷数字技术有限公司 | PCI sound card with echo cancellation effect |
| CN202587132U (en) * | 2012-02-23 | 2012-12-05 | 青岛海信移动通信技术股份有限公司 | Voice call circuit with echo suppression function and flat panel computer |
-
2016
- 2016-12-16 CN CN201611168241.2A patent/CN106454637A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050180557A1 (en) * | 2004-02-18 | 2005-08-18 | Norton William E.Iii | Echo canceller for removing speaker to microphone feedback on a personal computer |
| CN101465901A (en) * | 2007-12-18 | 2009-06-24 | 康佳集团股份有限公司 | Mobile phone and method for processing down voice |
| CN202372884U (en) * | 2011-10-26 | 2012-08-08 | 浙江西谷数字技术有限公司 | PCI sound card with echo cancellation effect |
| CN202340252U (en) * | 2011-11-18 | 2012-07-18 | 镁思锑科技（杭州）有限公司 | Communication cell phone with functions of eliminating echoes and noise for mining |
| CN202587132U (en) * | 2012-02-23 | 2012-12-05 | 青岛海信移动通信技术股份有限公司 | Voice call circuit with echo suppression function and flat panel computer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117116258A (en) * | 2023-04-12 | 2023-11-24 | 荣耀终端有限公司 | Voice awakening method and electronic equipment |
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Application publication date: 20170222 |
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