CN205302942U - On -vehicle audio processing system - Google Patents
On -vehicle audio processing system Download PDFInfo
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- CN205302942U CN205302942U CN201521128129.7U CN201521128129U CN205302942U CN 205302942 U CN205302942 U CN 205302942U CN 201521128129 U CN201521128129 U CN 201521128129U CN 205302942 U CN205302942 U CN 205302942U
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Abstract
The utility model provides an on -vehicle audio processing system, includes: central processing unit, operation operating system's microprocessor, with audio frequency processing module, pronunciation processing module that central processing unit connects, with each audio interface and power amplifier interface that audio frequency processing module connects, with the microphone interface that voice processing module connects, central processing unit with the microprocessor both way junction, microprocessor still with audio frequency processing module voice processing module connects, voice processing module still with audio frequency processing module connects, the central processing unit basis microprocessor's instruction, control audio frequency processing module voice processing module's operating condition. The embodiment of the utility model provides a scheme can be compatible different kinds of audio frequency class interface, and can satisfy the matching demand of multiple sound source equipment.
Description
Technical field
The utility model relates to vehicle-mounted technical field, particularly relates to a kind of onboard audio treatment system.
Background technology
Along with the fast development of automobile market and the universal of handheld device, automobile has become the media entertainment center of a new generation. in order to meet the demand of user, the function of automotive entertainment system becomes increasingly abundant, not only want energy broadcast listening radio station, DVD playing back (DigitalVersatileDisc, digital versatile disc), play MP3 (audio file stored after utilizing MPEGAudioLayer3 coding techniques to encode), also to be play IPHONE (the smart mobile phone series of research and development under Apple), audio file in the hand-held music player devices such as IPOD (Apple's design and the portable multi-function digital multimedia player sold), requirement simultaneously can conveniently be plugged into the intelligent terminal equipment such as mobile phone.
Traditional onboard audio solution integration degree is poor, and function is simple, in signal processing, very difficult compatibility has the different interface of otherness, in audio adjustment, carry out volume adjusting, height tone joint only simply, the coupling demand of current various tone sources equipment cannot be met.
Practical novel content
Based on this, the object of the utility model embodiment is to provide a kind of onboard audio treatment system, the audio class interface that it can be compatible dissimilar, and can meet the coupling demand of various tone sources equipment.
For achieving the above object, the utility model embodiment by the following technical solutions:
A kind of onboard audio treatment system, comprising:
Central processing unit, the microprocessor of operation system, with the audio processing modules that described central processing unit is connected, speech processing module, the each audio frequency interface being connected with described audio processing modules and power amplifier interface, with the microphone interface that described speech processing module is connected, described central processing unit and described microprocessor are bi-directionally connected, described microprocessor also with described audio processing modules, described speech processing module connects, described speech processing module is also connected with described audio processing modules, described central processing unit is according to the instruction of described microprocessor, control described audio processing modules, the working order of described speech processing module.
Scheme according to the utility model embodiment as above, it is by comprising the setting of principal and subordinate's chip architecture of central processing unit and microprocessor, and the setting of the two processing modules in conjunction with audio processing modules, speech processing module, audio class interface that can be compatible dissimilar, and the coupling demand of various tone sources equipment can be met.
Accompanying drawing explanation
Fig. 1 is the structural representation of onboard audio treatment system of the present utility model in an embodiment;
Fig. 2 is the schematic diagram of the master-slave connection between the microprocessor in a concrete example, speech processing module, mobile communication module;
Fig. 3 is the schematic diagram of the master-slave connection between the microprocessor in another concrete example, speech processing module, mobile communication module.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is described in further detail. It is to be understood that embodiment described herein is only in order to explain the utility model, do not limit protection domain of the present utility model.
Having illustrated the structural representation of onboard audio treatment system of the present utility model in an embodiment in Fig. 1, as shown in Figure 1, the onboard audio treatment system in the present embodiment comprises:
Central processing unit 101, the microprocessor 102 of operation system, the audio processing modules 103 being connected with central processing unit 101, speech processing module 104, the audio frequency interface 105 being connected with audio processing modules 103 and power amplifier interface 106, the microphone interface 107 being connected with speech processing module 104, wherein, central processing unit 101 and microprocessor 102 are bi-directionally connected, microprocessor 102 also with audio processing modules 103, speech processing module 104 connects, speech processing module 104 is also connected with audio processing modules 103, central processing unit 101 is according to the instruction of microprocessor 102, control audio processing modules 103, the working order of speech processing module 104.
Scheme according to the utility model embodiment as above, it is by comprising the setting of principal and subordinate's chip architecture of central processing unit and microprocessor, and the setting of the two processing modules in conjunction with audio processing modules, speech processing module, audio class interface that can be compatible dissimilar, and the coupling demand of various tone sources equipment can be met.
Wherein, the concrete interface type that above-mentioned audio frequency interface 105 comprises, difference based on onboard system actual disposition can difference to some extent, in a concrete example, as shown in Figure 1, this audio frequency interface 105 specifically can comprise bluetooth module 1051, DVD player core interface 1052 and AUX (audio input interface) interface 1053. It will be appreciated by those skilled in the art that, when needing to access other dissimilar audio input device, this audio frequency interface 105 can also include corresponding dissimilar interface.
In addition, as shown in Figure 1, in a concrete example, the onboard audio treatment system of the present embodiment can also comprise the USB (UniversalSerialBus being connected with microprocessor 102, general serial bus) interface 108, microprocessor 102 is connected with usb 1 08 by general serial bus. Thus, audio processing modules 103 can pass through microprocessor 102, usb 1 08, plays the audio file in the USB device being connected with usb 1 08. , in the case of necessary, it is also possible to by usb 1 08, in addition the operating system run in master chip 102 is upgraded.
, as shown in Figure 1, in a specific embodiment, in addition the onboard audio treatment system in the present embodiment can also comprise: the mobile communication module 109 being connected with microprocessor 102 and speech processing module 104. Thus, by mobile communication module 109, it is possible to realize mobile communication, and cloud database can be connected, when the voice data inputted from microphone interface 107 are identified by speech processing module 104, it is possible in conjunction with the more voice of cloud database identification, promote recognition rate.
Wherein, this mobile communication module 109, in conjunction with the difference of the signalling methods applied, 3G (G mobile communication) can be comprised communicate module, can also be comprise 4G (forth generation mobile communication technology) communicate module, can also be comprise the 3G module that communicates to communicate with 4G module, to be applicable to the requirement of different mobile communications simultaneously.
It should be noted that, in shown in Fig. 1, when the interconnected relationship related between microprocessor 102, speech processing module 104, mobile communication module 109, it is merge together for their wire to be described, this kind of diagramatic way, mainly in order to show that they can be connected by I2S (a kind of digital audio and video signals) bus, share clocksignal. I2S define the unit in its job network only allow a master one from relation, main unit is responsible for providing I2S position clock and I2S sampled clock signal, and two-way is respectively the collection of letters number of I2S and signals in addition. Therefore, in the signal processing of reality, can there is the differentiation of principal and subordinate's pattern in the interconnected relationship between each module.
In a concrete example, as shown in Figure 2, when microprocessor 102 communicates with speech processing module 104, speech processing module 104 be from, microprocessor 102 is main, a clock and sampled clock signal are provided by microprocessor 102, speech processing module 104 send ADC change after MIC signal do voice recognition processing to microprocessor 102.
In another specific example, as shown in Figure 3, when mobile communication module 109 communicates with speech processing module 104, speech processing module 104 is main, mobile communication module be from, the two is two-way communication, provides a clock and sampled clock signal by speech processing module 104. Speech processing module 104 sends the MIC signal after ADC conversion, and this MIC signal passes through the voice output of mobile communication module 109 as mobile communication network (3G, 4G etc.). The speech signal that mobile communication module 109 is received by mobile communication network is as the phonetic entry of mobile communication module 109, after being sent to speech processing module 104, it is sent to vehicle-mounted loudspeaker broadcasts via speech processing module 104, audio processing modules 103, power amplifier interface 106.
Wherein, above-mentioned central processing unit 101 can pass through UART (UniversalAsynchronousReceiver/Transmitter with microprocessor 102, universal asynchronous receiving-transmitting transmitter) serial data bus connection, audio processing modules 103, speech processing module 104 are controlled by central processing unit 101 based on the instruction of microprocessor 102, the operation of operating system is responsible for by microprocessor 102, can also carrying out voice recognition processing, decoding, the control mobile communication module of usb signal data connect cloud database etc.
Central processing unit 101 and audio processing modules 103 can pass through I2C (Inter-IntegratedCircuit, a kind of by the twin wire serial bus of Philip (PHILIPS) company exploitation, for connecting microcontroller and peripherals thereof) serial data bus connection, central processing unit 101 can also be connected by I2C serial data bus with speech processing module 104. Audio processing modules 103, speech processing module 104 are controlled by central processing unit 101 by I2C serial bus, realize the control to audio processing modules 103, speech processing module 104 and switching, such as, central processing unit 101 is according to the instruction of microprocessor 102, principal and subordinate's pattern of switching speech processing module 104, or the function such as the input and output of gating audio processing modules 103, the mixed sound of control.
Above-mentioned audio processing modules 103, it is possible to adopt any possible equipment to realize. Considering that TEF6638 chip can more preferably process multi-path digital and the simulating signals such as USB sound, AUX sound, navigation sound, and can carry out mixed sound, therefore, in a concrete example, above-mentioned audio processing modules 103 can comprise TEF6638 chip.
Above-mentioned speech processing module 104, it is also possible to adopt any possible equipment to realize. Consider that FM1288 chip internal is integrated with pressure and makes an uproar algorithm, it is applicable to the system that analog voice signal specification of quality is high, it is possible in speech recognition, play effect preferably, therefore, in a concrete example, above-mentioned speech processing module 104 can comprise FM1288 chip.
Be that 3G communicates that module, audio processing modules 103 comprise TEF6638 chip in conjunction with above-mentioned mobile communication module 109, to comprise FM1288 chip be example to speech processing module 104, owing to TEF6638 chip is under the I2S sampling rate of 44.1kHZ, the bit clock frequency of the module that communicates with 3G can not mate, in the present embodiment scheme, the I2S numerary signal of mobile communication module 109 can be converted to simulating signal by FM1288 chip, then is transferred to the TEF6638 chip of audio processing modules.
Based on the onboard audio treatment system in embodiment as above, when to be carried out speech processes, the FM1288 chip of speech processing module 104 will be transmitted by microphone interface 107, microphone pickup is numerary signal to speech conversion, it is supplied to microprocessor 102 and does voice recognition processing, and it is supplied to the phonetic entry of mobile communication module 109 as mobile communication process, the voice digital signal of the other side that mobile communication module 109 receives is by the FM1288 chip of speech processing module 104 simultaneously, the TEF6638 chip of audio processing modules 103 outputs to loud speaker in car.
When integrated multipath digital-to-analogue audio-frequency function, the TEF6638 chip of audio processing modules 103 supports the input of multichannel audio frequency, comprising: the Medium Emulation sound signal that inputted by AUX interface 1053, changed by the FM1288 chip of the simulated audio signal of DVD player core interface 1052 input, speech processing module 104 after the 3G simulated audio signal of transmission, bluetooth module 1051 input digital audio and video signals, by the Media Digital sound signal etc. in the external USB disk of usb 1 08.
When realizing integrated sound mixing function, the TEF6638 chip of audio processing modules 103 supports the stereo process function of input audio signal, central processing unit 101 is by the passage control audio processing modules 103 of I2C serial data bus, respectively mixed for two-way input audio signal sound is exported, such as, intercut navigation sound when playing USB music.
Each technology feature of the above embodiment can combine arbitrarily, for making description succinct, each all possible combination of technology feature in above-described embodiment is not all described, but, as long as the combination of these technology features does not exist contradiction, all it is considered to be the scope that this specification sheets is recorded.
The above embodiment only have expressed several enforcement mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope. , it is also possible to make some distortion and improvement, it should be appreciated that for the person of ordinary skill of the art, without departing from the concept of the premise utility these all belong to protection domain of the present utility model. Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (8)
1. an onboard audio treatment system, it is characterised in that, comprising:
Central processing unit, the microprocessor of operation system, with the audio processing modules that described central processing unit is connected, speech processing module, the audio frequency interface being connected with described audio processing modules and power amplifier interface, with the microphone interface that described speech processing module is connected, wherein, described central processing unit and described microprocessor are bi-directionally connected, described microprocessor also with described audio processing modules, described speech processing module connects, described speech processing module is also connected with described audio processing modules, described central processing unit is according to the instruction of described microprocessor, control described audio processing modules, the working order of described speech processing module.
2. onboard audio treatment system according to claim 1, it is characterised in that, described audio frequency interface comprises bluetooth module, DVD player core interface and AUX interface.
3. onboard audio treatment system according to claim 1, it is characterised in that, also comprise and the USB interface that described microprocessor is connected, described microprocessor is connected with described USB interface by general serial bus.
4. onboard audio treatment system according to claim 1, it is characterised in that, also comprise and the mobile communication module that described microprocessor and described speech processing module are connected.
5. onboard audio treatment system according to Claims 1-4 any one, it is characterised in that, described central processing unit is connected by UART serial data bus with described microprocessor.
6. onboard audio treatment system according to Claims 1-4 any one, it is characterised in that, described central processing unit is connected with described speech processing module, described audio processing modules by I2C serial data bus.
7. onboard audio treatment system according to Claims 1-4 any one, it is characterised in that, described audio processing modules comprises TEF6638 chip.
8. onboard audio treatment system according to Claims 1-4 any one, it is characterised in that, described speech processing module comprises FM1288 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521128129.7U CN205302942U (en) | 2015-12-28 | 2015-12-28 | On -vehicle audio processing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521128129.7U CN205302942U (en) | 2015-12-28 | 2015-12-28 | On -vehicle audio processing system |
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| CN205302942U true CN205302942U (en) | 2016-06-08 |
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| CN201521128129.7U Expired - Fee Related CN205302942U (en) | 2015-12-28 | 2015-12-28 | On -vehicle audio processing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659775A (en) * | 2017-11-02 | 2018-02-02 | 深圳市裂石影音科技有限公司 | A kind of panorama camera with multi-channel audio acquisition function |
| CN108255765A (en) * | 2018-03-28 | 2018-07-06 | 广州凯蒂诺信息科技有限公司 | Vehicle-mounted CD host As UX turns usb audio transmitting device and its transmission method |
-
2015
- 2015-12-28 CN CN201521128129.7U patent/CN205302942U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659775A (en) * | 2017-11-02 | 2018-02-02 | 深圳市裂石影音科技有限公司 | A kind of panorama camera with multi-channel audio acquisition function |
| CN108255765A (en) * | 2018-03-28 | 2018-07-06 | 广州凯蒂诺信息科技有限公司 | Vehicle-mounted CD host As UX turns usb audio transmitting device and its transmission method |
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Granted publication date: 20160608 |