CN209183265U - Apparatus for processing audio - Google Patents
Apparatus for processing audio Download PDFInfo
- Publication number
- CN209183265U CN209183265U CN201821838956.9U CN201821838956U CN209183265U CN 209183265 U CN209183265 U CN 209183265U CN 201821838956 U CN201821838956 U CN 201821838956U CN 209183265 U CN209183265 U CN 209183265U
- Authority
- CN
- China
- Prior art keywords
- audio
- module
- signal
- processing
- sound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of apparatus for processing audio, are applied to automobile, specifically, which includes: microphone mould group comprising at least two microphones；Microphone audio processing module is used to receive the audio signal of microphone mould group acquisition, and audio signal is first converted to digital signal, then convert digital signals into audio-frequency bus signal；Audio-frequency bus signal is first converted to digital signal, then obtained digital signal is converted to analog signal for receiving audio-frequency bus signal by onboard audio processing module；Audio playing module is for playing analog signal.Pass through car audio bus transfer audio-frequency bus signal between the utility model onboard audio processing module and microphone audio processing module, on the one hand the high fidelity of audio signal and the real-time of audio transmission be ensure that, on the other hand vehicle-mounted wiring complexity is reduced, the weight of transmission cable harness is significantly reduced, and then improves automobile fuel efficiency or battery life.
Description
Technical field
The utility model relates to voice processing technology field more particularly to a kind of apparatus for processing audio.
Background technique
Automobile is provided convenience for people's lives, and people are more and more using the time of automobile.In order to improve interior use
The comfort level at family allows user on the way to enjoy melodious music currently, being fitted with sound system on many automobiles.
Currently, car audio system is mainly to connect vehicle-mounted loudspeaker group by the vehicle-mounted power amplifier with analog audio signal interface
At.When playing audio, audio file signal or call return path signal are exported from vehicle-mounted central control system or vehicle entertainment system, warp
It crosses the complicated analog signal line of wiring and is connected to car audio system.In the process of implementing the utility model, inventor has found
Following problem exists in the prior art: due to using analog signal transmission audio, so audio signal is easy to be interfered, and
It is not easy to restore the source of sound of high-fidelity, while transmitting audio signal using analog signal line, wire laying mode is extremely complex, Er Qiezeng
Harness weight and cost are added.
Utility model content
The purpose of this utility model is to provide a kind of apparatus for processing audio, to solve at the existing audio for automobile
Device is managed, the fidelity of audio signal is low, and harness is more, so that wiring is complicated, the big and at high cost technical problem of harness weight.
To solve the above-mentioned problems, the utility model provides a kind of apparatus for processing audio, is applied to automobile, at audio
Managing device includes:
Microphone mould group comprising at least two microphones；
Microphone audio processing module is connect with microphone mould group, and microphone audio processing module is for receiving Mike
The audio signal of wind mould group acquisition, and audio signal is first converted into digital signal, then convert digital signals into audio-frequency bus
Signal；
Onboard audio processing module is connect with microphone audio processing module by car audio bus, onboard audio
Audio-frequency bus signal is first converted to digital signal, then the number that will be obtained for receiving audio-frequency bus signal by processing module
Signal is converted to analog signal；
Audio playing module is connect with onboard audio processing module, and audio playing module is for playing analog signal.
Microphone mould group is set on the inside of automobile cabin roof as a further improvement of the utility model, microphone
Mould group is adjacent to indoor lamp.
Microphone audio processing module includes: as a further improvement of the utility model,
Sound area confirmation module is connect with microphone mould group, when sound area confirmation module is used to enter speech recognition mode, control
It makes at least two microphones and acquires voice signal respectively, the position of target language source of sound is determined according to voice signal, and according to target
The position of speech source confirms target sound area range；
Audio collection module is connect with sound area confirmation module, and audio collection module is for acquiring target sound area range
Required voice signal；
First audio conversion module is used to that required voice signal to be first converted to digital signal, then digital signal is turned
It is changed to audio-frequency bus signal.
Microphone audio processing module as a further improvement of the utility model, further include:
Noise reduction disappears back processing module, and one end is connect with audio collection module, and the other end is connect with audio conversion module, drop
The processing module that disappears back of making an uproar disappears back processing for carrying out noise reduction to required voice signal, and by the noise reduction audio signal that disappears back that treated
It is transmitted to audio conversion module.
Sound area confirmation module includes: as a further improvement of the utility model,
Distance calculation module, the voice signal for recording each speech source reach the time of at least two microphones,
And each speech source is calculated at a distance from microphone mould group according to the time；
Confirmation module, for confirming that the nearest speech source of distance microphone mould group is target language source of sound.
Sound area confirmation module includes: as a further improvement of the utility model,
Audio intensity obtains module, and the voice signal for obtaining each speech source reaches the sound of at least two microphones
Frequency intensity；
Confirmation module, for confirming that the highest speech source of audio intensity is target language source of sound.
Onboard audio processing module includes: as a further improvement of the utility model,
Audio receiving module is connect by car audio bus with the first audio conversion module, and audio receiving module is used
In reception audio-frequency bus signal, and audio-frequency bus signal is converted into digital signal；
Sound effect processor is connect with audio receiving module, and sound effect processor is used for using audio effect processing algorithm to number
Signal carries out audio effect processing；
Second audio conversion module, connect with sound effect processor, and the second audio conversion module will be for that will carry out at audio
Digital signal after reason is converted to analog signal；
Amplifier is connect with the second audio conversion module, and amplifier is for amplifying processing to analog signal.
As a further improvement of the utility model, audio effect processing algorithm include EQ algorithm, 3D algorithm, BASS algorithm,
TREBLE algorithm, surround sound algorithm, Doby sound effect algorithms, DTS algorithm, PCM algorithm, AC-3 algorithm, THX algorithm, SDDS
At least one of algorithm and power amplification algorithm.
Multiple sound areas range is equipped in automobile as a further improvement of the utility model, audio playing module includes more
A loudspeaker group, the corresponding loudspeaker group of each sound area range, each loudspeaker group includes at least two loudspeakers.
Compared with prior art, collected audio signal is first converted to digital signal by the utility model, then will be digital
Signal is converted to audio-frequency bus signal, therefore, passes through automobile between onboard audio processing module and microphone audio processing module
Audio-frequency bus transmits audio-frequency bus signal, on the one hand ensure that the high fidelity of audio signal and the real-time of audio transmission, separately
On the one hand vehicle-mounted wiring complexity is reduced, significantly reduces the weight of transmission cable harness, and then improve vehicle fuel effect
Rate or battery life.
Detailed description of the invention
Fig. 1 is the circuit theory schematic diagram of the utility model apparatus for processing audio one embodiment；
Fig. 2 is that the functional module of microphone audio processing module one embodiment in the utility model apparatus for processing audio is shown
It is intended to；
Fig. 3 is the functional block diagram of the utility model apparatus for processing audio middle register confirmation module one embodiment；
Fig. 4 is that the functional module of another embodiment of the utility model apparatus for processing audio middle register confirmation module is illustrated
Figure；
Fig. 5 is the functional module signal of onboard audio processing module one embodiment in the utility model apparatus for processing audio
Figure.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, the technical solution in embodiment is carried out it is clear, complete
Ground describes, and similar reference numerals represent similar component in attached drawing.Obviously, will be described below embodiment is only that this is practical
Novel a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without creative efforts, belongs to the model of the utility model protection
It encloses.
Fig. 1-Fig. 5 illustrates one embodiment of the utility model apparatus for processing audio.In the present embodiment, referring to Fig. 1,
The apparatus for processing audio is applied to automobile.Specifically, which includes microphone mould group 1, microphone audio processing
Module 2, onboard audio processing module 3 and audio playing module 4, wherein microphone audio processing module 2 and microphone mould group 1
Connection, onboard audio processing module 3 are connect with microphone audio processing module 2 by car audio bus, audio playing module 4
It is connect with onboard audio processing module 3.
Wherein, microphone mould group 1 includes at least two microphones.Preferably, which is set to car steering
On the inside of the roof of cabin, microphone mould group 1 is adjacent to indoor lamp.
The microphone mould group is arranged by neighbouring indoor lamp in the present embodiment, causes microphone that can quickly and clearly collect
The voice messaging of any one interior position, to further improve speech recognition effect.
Further, microphone audio processing module 2 is used to receive the audio signal of the acquisition of microphone mould group 1, and by sound
Frequency signal is first converted to digital signal, then converts digital signals into audio-frequency bus signal；Onboard audio processing module 3 is for connecing
Radio reception frequency bus signals, and audio-frequency bus signal is first converted into digital signal, then obtained digital signal is converted into simulation
Signal；Audio playing module 4 is for playing analog signal.
Collected audio signal is first converted to digital signal by the present embodiment, then converts digital signals into audio-frequency bus
Signal, it is therefore, total by car audio bus transfer audio between onboard audio processing module and microphone audio processing module
Line signal, on the one hand ensure that the high fidelity of audio signal and the real-time of audio transmission, on the other hand reduce vehicle-mounted cloth
Line complexity significantly reduces the weight of transmission cable harness, and then improves automobile fuel efficiency or battery life.
On the basis of the above embodiments, in other embodiments, referring to fig. 2, which includes sound
Area's confirmation module 20, audio collection module 21, noise reduction disappear back processing module 22 and the first audio conversion module 23, wherein sound area
Confirmation module 20 is connect with microphone mould group 1, and audio collection module 21 is connect with sound area confirmation module 20, and noise reduction, which disappears back, handles mould
22 one end of block is connect with audio collection module 21, and noise reduction 22 other end of processing module that disappears back is connect with audio conversion module.
Wherein, when sound area confirmation module 20 is used to enter speech recognition mode, at least two microphones of control acquire respectively
Voice signal determines the position of target language source of sound according to voice signal, and according to the position of target language source of sound, confirms target sound area
Range；Audio collection module 21 is used to acquire the required voice signal of target sound area range；The noise reduction processing module 22 that disappears back is used for
It carries out noise reduction to required voice signal to disappear back processing, and by the noise reduction audio signal transmission that disappears back that treated to audio modulus of conversion
Block.First audio conversion module 23 is converted to digital signal for the audio signal that will first disappear back that treated, then by digital signal
Be converted to audio-frequency bus signal.
On the basis of the above embodiments, in other embodiments, multiple sound areas range, audio playing module are equipped in automobile
4 include multiple loudspeaker groups, each sound area range corresponds to a loudspeaker group, each loudspeaker group is raised including at least two
Sound device.
For the technical solution of the utility model detailed further, by taking the area Liang Geyin range as an example, this case is carried out detailed
It describes in detail bright.
Specifically, it is equipped in automobile and drives sound area range and copilot sound area range, be equipped with one by door side in cockpit
A loudspeaker group A, the loudspeaker group A are corresponding with driving sound area's range.A loudspeaker is equipped with by door side in copilot cabin
Group B, the loudspeaker group B is corresponding with copilot sound area's range, when the driver in cockpit sends voice command, then only acquires
The voice signal within the scope of sound area is driven, does not acquire the voice signal within the scope of copilot sound area, at the same time, analysis processing is adopted
The broadcasting voice signal obtained after the voice signal collected is played out by loudspeaker group A, is obtained so that driver can become apparent from
Know the audio-frequency information of broadcasting, to both improve voice result of broadcast, also improves user experience degree.
It should be noted that the voice collecting and voice in copilot cabin play, with the voice collecting and voice in cockpit
Play similar, details are not described herein.
The present embodiment positions target language source of sound by microphone mould group, after determining target sound area range, only obtains
The required voice signal within the scope of target sound area is taken, to effectively prevent the voice signal and/or environmental noise in other sound areas
Influence, to improve the recognition effect of voice command.
On the basis of the above embodiments, in other embodiments, there are many modes of confirmation target language source of sound, in order to more
The technical solution of the utility model is described in detail, is described in detail by taking time and/or audio intensity as an example.
By taking the time as an example, referring to Fig. 3, which includes distance calculation module 2000 and confirmation module
2001.Wherein, distance calculation module 2000, the voice signal for recording each speech source reach at least two microphones
Time, and each speech source is calculated at a distance from microphone mould group 1 according to the time；Confirmation module 2001, for confirming distance
The nearest speech source of microphone mould group 1 is target language source of sound.
It should be noted that in the present embodiment, can also not have to calculate distance, the earliest speech source of direct acknowledging time
It is target language source of sound also within the protection scope of the utility model.
The present embodiment reaches the time point of microphone mould group by recording the voice signal of each speech source, thus according to
The time point confirms target language source of sound, which is easily achieved, to reduce design difficulty, thereby reduces and is designed to
This.
By taking audio intensity as an example, referring to fig. 4, which includes that audio intensity obtains module 2010 and confirmation
Module 2011.Wherein, audio intensity obtains module 2010, and the voice signal for obtaining each speech source reaches at least two
The audio intensity of microphone；Confirmation module 2011, for confirming that the highest speech source of audio intensity is target language source of sound.
The present embodiment reaches the audio intensity of at least two microphones by obtaining the voice signal of each speech source, from
And target language source of sound is confirmed according to audio intensity, cause the confirmation more accuracy of target language source of sound, and then improve target language
The confirmation accuracy rate of source of sound.
It should be noted that in the present embodiment, in order to further enhance the confirmation accuracy rate of target language source of sound, the time and
The technical solution of the two connection confirming target language source of sound of audio intensity, also within the protection scope of the utility model.
On the basis of the above embodiments, in other embodiments, referring to Fig. 5, onboard audio processing module 3 connects including audio
Receive module 30, sound effect processor 31, the second audio conversion module 32 and amplifier 33, wherein audio receiving module 30 passes through vapour
Vehicle audio-frequency bus is connect with the first audio conversion module 23, and sound effect processor 31 is connect with audio receiving module 30, the second audio
Conversion module 32 is connect with sound effect processor 31, and amplifier 33 is connect with the second audio conversion module 32.
It should be noted that the digital audio that the ADI company that car audio bus is the U.S. releases for vehicular applications is total
Line, English name are Automotive Audio Bus, are abbreviated as A2B.
Wherein, audio receiving module 30 is for receiving audio-frequency bus signal, and audio-frequency bus signal is converted to digital letter
Number；Sound effect processor 31 is used to carry out audio effect processing to digital signal using audio effect processing algorithm；Second audio conversion module 32
For the digital signal after progress audio effect processing to be converted to analog signal；Amplifier 33 is for amplifying place to analog signal
Reason.
It should be noted that different audios can be arranged (for example: sweet language in the present embodiment according to the demand of user
Sound, specific accent etc.).
The present embodiment carries out audio effect processing to audio signal to be played, so that various special efficacys are increased according to user demand,
To promote the auditory effect of music.
In above-mentioned various audio effect processing modes, various audio effect processing algorithms can be flexibly selected, and can be real
Existing various types of audios.Wherein, common sound effect algorithms include: EQ algorithm, 3D algorithm, BASS algorithm, TREBLE algorithm, ring
Around stereo algorithm, Doby sound effect algorithms, DTS algorithm, PCM algorithm, AC-3 algorithm, THX algorithm, SDDS algorithm and power
At least one of interpolator arithmetic.
The specific embodiment of utility model is described in detail above, but it is only used as example, the utility model
It is not intended to limit and specific embodiments described above.For a person skilled in the art, it is any to the utility model into
Capable equivalent modifications or substitution are also all among the scope of the utility model, therefore, in the spirit for not departing from the utility model and
Made equal transformation and modification, improvement etc., should all cover in the scope of the utility model under spirit.
Claims (9)
1. a kind of apparatus for processing audio, which is characterized in that it is applied to automobile, and the apparatus for processing audio includes:
Microphone mould group comprising at least two microphones；
Microphone audio processing module is connect with the microphone mould group, and the microphone audio processing module is for receiving
The audio signal of the microphone mould group acquisition, and the audio signal is first converted into digital signal, then the number is believed
Number be converted to audio-frequency bus signal；
Onboard audio processing module is connect with the microphone audio processing module by car audio bus, described vehicle-mounted
The audio-frequency bus signal is first converted to digital signal for receiving the audio-frequency bus signal by audio processing modules, then
Obtained digital signal is converted into analog signal；
Audio playing module is connect with the onboard audio processing module, and the audio playing module is for playing the mould
Quasi- signal.
2. apparatus for processing audio according to claim 1, which is characterized in that the microphone mould group is set to car steering
On the inside of the roof of cabin, the microphone mould group is adjacent to indoor lamp.
3. apparatus for processing audio according to claim 1, which is characterized in that the microphone audio processing module includes:
Sound area confirmation module is connect with the microphone mould group, and sound area confirmation module is used to enter speech recognition mode
When, it controls at least two microphone and acquires voice signal respectively, the position of target language source of sound is determined according to the voice signal
It sets, and according to the position of the target language source of sound, confirms target sound area range；
Audio collection module is connect with sound area confirmation module, and the audio collection module is for acquiring the target sound
The required voice signal of area's range；
First audio conversion module is used to that the required voice signal to be first converted to digital signal, then the number is believed
Number be converted to audio-frequency bus signal.
4. apparatus for processing audio according to claim 3, which is characterized in that the microphone audio processing module is also wrapped
It includes:
Noise reduction disappears back processing module, and one end is connect with the audio collection module, and the other end and the audio conversion module connect
It connects, the noise reduction processing module that disappears back disappears back processing for carrying out noise reduction to the required voice signal, and noise reduction is disappeared back place
Audio signal transmission after reason is to the audio conversion module.
5. apparatus for processing audio according to claim 3, which is characterized in that sound area confirmation module includes:
Distance calculation module, the voice signal for recording each speech source reach the time of at least two microphone,
And each speech source is calculated at a distance from the microphone mould group according to the time；
Confirmation module, for confirming that the speech source nearest apart from the microphone mould group is the target language source of sound.
6. apparatus for processing audio according to claim 3, which is characterized in that sound area confirmation module includes:
Audio intensity obtains module, and the voice signal for obtaining each speech source reaches the sound of at least two microphone
Frequency intensity；
Confirmation module, for confirming that the highest speech source of audio intensity is the target language source of sound.
7. apparatus for processing audio according to claim 3, which is characterized in that the onboard audio processing module includes:
Audio receiving module is connect by the car audio bus with first audio conversion module, and the audio connects
Module is received for receiving the audio-frequency bus signal, and the audio-frequency bus signal is converted into digital signal；
Sound effect processor is connect with the audio receiving module, and the sound effect processor is used to utilize audio effect processing algorithm pair
The digital signal carries out audio effect processing；
Second audio conversion module is connect with the sound effect processor, and second audio conversion module will be for that will carry out sound
Treated that digital signal is converted to analog signal for effect；
Amplifier is connect with second audio conversion module, and the amplifier is for amplifying the analog signal
Processing.
8. apparatus for processing audio according to claim 7, which is characterized in that the audio effect processing algorithm include EQ algorithm,
3D algorithm, BASS algorithm, TREBLE algorithm, surround sound algorithm, Doby sound effect algorithms, DTS algorithm, PCM algorithm, AC-3 are calculated
At least one of method, THX algorithm, SDDS algorithm and power amplification algorithm.
9. apparatus for processing audio according to claim 3, which is characterized in that multiple sound areas range is equipped in automobile, it is described
Audio playing module includes multiple loudspeaker groups, the corresponding loudspeaker group of each sound area range, each loudspeaker group packet
Include at least two loudspeakers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821838956.9U CN209183265U (en) | 2018-11-09 | 2018-11-09 | Apparatus for processing audio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821838956.9U CN209183265U (en) | 2018-11-09 | 2018-11-09 | Apparatus for processing audio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209183265U true CN209183265U (en) | 2019-07-30 |
Family
ID=67363688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821838956.9U Expired - Fee Related CN209183265U (en) | 2018-11-09 | 2018-11-09 | Apparatus for processing audio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209183265U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111739504A (en) * | 2020-05-29 | 2020-10-02 | 长城汽车股份有限公司 | Microphone system, control method and vehicle |
| CN113825106A (en) * | 2021-11-24 | 2021-12-21 | 天津七一二移动通信有限公司 | Digital transmission equipment for voice broadcast signals along coal mine and implementation method |
| CN114400003A (en) * | 2022-01-10 | 2022-04-26 | 北京至简科技有限公司 | Control method and system for automatically switching microphones, electronic equipment and storage medium |
-
2018
- 2018-11-09 CN CN201821838956.9U patent/CN209183265U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111739504A (en) * | 2020-05-29 | 2020-10-02 | 长城汽车股份有限公司 | Microphone system, control method and vehicle |
| WO2021239044A1 (en) * | 2020-05-29 | 2021-12-02 | 长城汽车股份有限公司 | Microphone system, control method and vehicle |
| CN113825106A (en) * | 2021-11-24 | 2021-12-21 | 天津七一二移动通信有限公司 | Digital transmission equipment for voice broadcast signals along coal mine and implementation method |
| CN114400003A (en) * | 2022-01-10 | 2022-04-26 | 北京至简科技有限公司 | Control method and system for automatically switching microphones, electronic equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209183264U (en) | Speech processing system | |
| CN209183265U (en) | Apparatus for processing audio | |
| CN113658588A (en) | Multi-sound-zone voice recognition method, device and storage medium | |
| CN112435682B (en) | Vehicle noise reduction system, method and device, vehicle and storage medium | |
| CN102224674A (en) | Noise modifying overhead audio system | |
| CN102711030A (en) | Intelligent audio system for vehicle and sound source adjustment method for intelligent audio system | |
| CN106548797A (en) | A kind of collection is visual, the vehicle intelligent platform of Voice command integration | |
| CN216886473U (en) | Vehicle-mounted audio system | |
| CN108574906B (en) | Sound processing method and system for automobile and automobile | |
| CN210223558U (en) | Vehicle-mounted KTV system and vehicle | |
| CN211296936U (en) | Noise reduction system applied to vehicle | |
| CN215815174U (en) | Voice interaction system inside and outside vehicle and vehicle | |
| CN110111791A (en) | A kind of speech recognition system based on vehicle intelligent net connection | |
| CN102857847B (en) | Public transport noise reduction system | |
| WO2010105517A1 (en) | Wireless vehicle audio system and its configuration method | |
| CN204750032U (en) | Voice data collection system | |
| CN210183486U (en) | Vehicle-mounted microphone based on Bluetooth wireless transmission technology | |
| CN115206279A (en) | Vehicle noise reduction processing system and method and vehicle | |
| CN206388506U (en) | A kind of vehicle intelligent platform for collecting visual Voice command integration | |
| JP2002112400A (en) | Car audio system | |
| CN201849393U (en) | Horn sound transmitter outside automobile | |
| CN112420029A (en) | Vehicle and sound processing system for vehicle | |
| CN220584915U (en) | Vehicle-mounted K song entertainment system and vehicle | |
| CN203086715U (en) | Vehicle-mounted sound system and vehicle | |
| CN201504315U (en) | Wireless car audio and wireless power amplifier module system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190730 Termination date: 20211109 |