CN207651168U - The super clear voice transfer of one kind and identification module - Google Patents
The super clear voice transfer of one kind and identification module Download PDFInfo
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- CN207651168U CN207651168U CN201721638647.2U CN201721638647U CN207651168U CN 207651168 U CN207651168 U CN 207651168U CN 201721638647 U CN201721638647 U CN 201721638647U CN 207651168 U CN207651168 U CN 207651168U
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Abstract
The utility model discloses a kind of super clear voice transfer and identification modules, including audio collection module, mainboard module, wireless transport module, power control circuit and WIFI transmission circuits；The mainboard module is separately connected audio collection module, wireless transport module, power control circuit and WIFI transmission circuits, the utility model provides wireless charging module circuit, improve the people in the hidden danger often occurred using different equipment, it in recent years on scientific technological advance road, constantly keeps on improving, the circuit structure is simple, it is of low cost, and existing charging modes are not influenced, it only attains a yet higher goal on the basis of original charging modes, realizes innovative energy-saving environmental protection.
Description
Technical field
The utility model is related to audio mining technique field, specifically a kind of super clear voice transfer and identification module.
Background technology
With the fast development of science and technology, video monitoring and audio transmission it is universal, bring great convenience for people's lives.But
To in the transmission process of real-time audio, due to various reasons, the case where various noises occurs in acquired audio, is easy to occur, and has
When even there is the very low situation of signal-to-noise ratio so that causing not hearing the case where people speaks completely, and then influence in audio
The clarity and intelligibility of appearance.
Voice Surveillance has been widely used in communal facility, and the Audio Monitoring System of complete set includes sound collection portion
Point, voice de-noising process part, network recording part, speech talkback part, sound intellectual analysis part.Pass through Voice Surveillance
Scene analysis is come to judge the abnormal behaviour under common scene, this technology be based on all kinds of abnormal sounds in time domain, the spy of frequency domain
The sorting technique of sign, binding pattern identification can be to abnormal event alarming.The precondition of all these demands is that have clearly
Initial data.In this case, conventional audio signal handle extremely urgent.
Utility model content
The purpose of this utility model is to provide a kind of super clear voice transfer and identification modules, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the utility model provides the following technical solutions：
A kind of super clear voice transfer and identification module, including audio collection module, mainboard module, wireless transport module,
Power control circuit and WIFI transmission circuits；The mainboard module is separately connected audio collection module, wireless transport module, power supply
Control circuit and WIFI transmission circuits.
As further program of the utility model：The audio collection module uses traditional electret MIC.
As further program of the utility model：The mainboard module uses arm processor.
As further program of the utility model：The wireless transport module uses 802.11n circuits.
Compared with prior art, the utility model has the beneficial effects that：The super clear voice transfer of the utility model and identification
Clearly voice collecting processing may be implemented in module, encodes, transmission；It is realized under extremely low code stream using AAC high fidelity speech
The transmission of 32kbps, 64kbps；In the case where reducing ambient noise, the sound of prominent people ensures that more remote voice is adopted
Collection.And by realizing decibel alarm or speech recognition algorithm to clearly voice.
Description of the drawings
Fig. 1 is the overall block diagram of the utility model.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, in the utility model embodiment, the super clear voice transfer of one kind and identification module, including audio are adopted
Collect module, mainboard module, wireless transport module, power control circuit and WIFI transmission circuits；The mainboard module is separately connected
Audio collection module, wireless transport module, power control circuit and WIFI transmission circuits.
Audio collection module uses traditional electret MIC.Mainboard module uses arm processor.Wireless transport module makes
With 802.11n circuits.
The operation principle of the utility model is：Environmental audio is acquired under low-noise situation, including traditional electret
Body microphone circuit carries out audio collection, and the host CPU that mainboard is transferred to after being handled by DSP carries out compression transmission；
The audio collection module 1 includes：DSP is using algorithm is had by oneself, for now, with the adaptive of sef-adapting filter
Answer noise cancellation method preferable to the noise reduction of Noise voice.Because this method uses reference noise to be inputted as auxiliary,
To obtain than more comprehensively about the information of noise, thus better noise reduction can be obtained.Especially inputted in auxiliary
In the case that noise in noise and voice is perfectly correlated, adaptive noise cancellation method can exclude the randomness of noise completely, thorough
The noise contribution in voice is offset to bottom, from regardless of in Signal to Noise Ratio (SNR)（Signal to Noise Ratio）Aspect is still
Larger raising can be obtained in terms of the intelligibility of speech.
The mainboard module 2 includes：Using the high efficiency of compression algorithm of AAC, it can ensure audio under very low code stream
Quality.Chinese name：Advanced Audio Coding realizes the high complexity operation of AAC on the limited arm processor of resource.As
A kind of audio compression algorithm of high compression ratio, AAC compression ratios are usually 18：1 far wins other audio compression algorithms；In sound quality side
Face makes it than almost all of traditional code mode in same rule due to using multichannel, and the describing mode of use low-complexity
It is even better in the case of lattice.AAC can support up to 48 tracks, 15 low frequencies（LFE）Track, the support of 5.1 multichannels, more
High sample rate（96kHz is reached as high as, audio CD is 44.1kHz）With higher sampling precision（Support 8bit, 16bit,
24bit, 32bit, audio CD are 16bit）The compatibility of language there are many and, higher decoding efficiency, in general,
AAC can provide preferable sound quality under the preceding topic that comparison mp3 file reduces 80%.Due to existing compared with high performance-price ratio ARM processing moneys
Source limits, this module selects sample rate 16KHz, the compress mode of compression ratio highest 48kbps.Mainboard provides a variety of transmission simultaneously
Software protocol.
Also include above mainboard module 3：TF card storage circuit part and USB portion, TF card store original audio PCM numbers
According to alloing other software to carry out subsequent analysis processing；USB portion connection WIFI module is transmitted；
Include on wireless transport module 4：802.11n wireless transmission circuits support the transmission of 150Mbps under 2.4GHz frequencies
Rate can support lower 100 meters of the transmission range of spacious occasion.
Three circuit modules are combined together by circuit connector, and 5V power inputs are provided by external adapter.Rear end
Either router can select to be linked into equipment by ap mode or STATION patterns software, be set by device protocol connection
It is standby, to obtain treated audio data, it can be achieved that the function of recording and monitor.
Claims (4)
1. a kind of super clear voice transfer and identification module, including audio collection module, mainboard module, wireless transport module, electricity
Source control circuit and WIFI transmission circuits；It is characterized in that, the mainboard module is separately connected audio collection module, wireless transmission
Module, power control circuit and WIFI transmission circuits.
2. the super clear voice transfer of one kind according to claim 1 and identification module, which is characterized in that the audio collection
Module uses traditional electret MIC.
3. the super clear voice transfer of one kind according to claim 1 and identification module, which is characterized in that the mainboard module
Use arm processor.
4. the super clear voice transfer of one kind according to claim 1 and identification module, which is characterized in that the wireless transmission
Module uses 802.11n circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721638647.2U CN207651168U (en) | 2017-11-30 | 2017-11-30 | The super clear voice transfer of one kind and identification module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721638647.2U CN207651168U (en) | 2017-11-30 | 2017-11-30 | The super clear voice transfer of one kind and identification module |
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| Publication Number | Publication Date |
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| CN207651168U true CN207651168U (en) | 2018-07-24 |
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| CN201721638647.2U Active CN207651168U (en) | 2017-11-30 | 2017-11-30 | The super clear voice transfer of one kind and identification module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113810982A (en) * | 2020-06-15 | 2021-12-17 | 特锐斯贝斯技术(Opc)私人有限公司 | System and method for optimizing power consumption of multimedia signal processing in a mobile device |
-
2017
- 2017-11-30 CN CN201721638647.2U patent/CN207651168U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113810982A (en) * | 2020-06-15 | 2021-12-17 | 特锐斯贝斯技术(Opc)私人有限公司 | System and method for optimizing power consumption of multimedia signal processing in a mobile device |
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