CN205003507U - Long -range formula pronunciation dibble seeding circuit that awakens up - Google Patents
Long -range formula pronunciation dibble seeding circuit that awakens up Download PDFInfo
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- CN205003507U CN205003507U CN201520755129.3U CN201520755129U CN205003507U CN 205003507 U CN205003507 U CN 205003507U CN 201520755129 U CN201520755129 U CN 201520755129U CN 205003507 U CN205003507 U CN 205003507U
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Abstract
The utility model provides a long -range formula pronunciation dibble seeding circuit that awakens up, it includes: a digital signal processing module, power amplifier module connects a digital signal processing module, power amplifier module is connected to the audio frequency module, the 2nd digital signal processing module and a digital signal processing module are connected, an audio input module is connected to the 2nd digital signal processing module through a filter circuit, the 2nd audio input module is connected to the 2nd digital signal processing module through 1 the 2nd filter circuit, its and an audio input module, a filter circuit forms differential input, an audio input module and the 2nd audio input module are with sound transmission to the 2nd digital signal processing module, a digital signal processing module, make this part noise of sound that audio amplifier itself sent eliminate, can also filter the interference of outside noises, make people's the digital signal processing module that enters into that the instruction can be very clean that controls, and then it is high to reach the dibble seeding rate of awakeing up, the characteristic that the discrimination is high.
Description
[technical field]
The utility model relates to speech processes field, particularly relates to a kind of Remote Wake Up formula playing speech on demand circuit.
[background technology]
A kind of playing speech on demand equipment used in the market, playing speech on demand technology can only be adopted under quiet environment, then voice playing equipment is waken up, if the use of equipment can be affected at environment noisy a little, wake that program request rate is not high, discrimination up, need playing music process physical key wakeup, or can only could use playing speech on demand song etc. after physical button is waken up in audio plays process, use extremely inconvenient.
[summary of the invention]
The utility model is intended to solve the problem, and provides a kind of Remote Wake Up formula playing speech on demand circuit, and it has the high characteristic of discrimination.
The utility model is achieved in that a kind of Remote Wake Up formula playing speech on demand circuit, and it comprises:
One first digital signal processing module;
One power amplifier module, connects described first digital signal processing module, amplifies in order to the signal produced by the first digital signal processing module;
One audio-frequency module, connects the output terminal of described power amplifier module;
One second digital signal processing module, it is connected with the first digital signal processing module, the signal that described second digital signal processing module reception first digital signal processing module produces;
One first Audio Input Modules, is connected to the second digital signal processing module by one first filtering circuit;
One second Audio Input Modules, the second digital signal processing module is connected to by one second filtering circuit, itself and described first Audio Input Modules, the first filtering circuit form Differential Input, first Audio Input Modules and the second Audio Input Modules are by transfer voice to the second digital signal processing module, and the second digital signal processing module is by Signal transmissions to the first digital signal processing module after process;
One power module, connects the first digital signal processing module, power amplifier module, audio-frequency module, the second digital signal processing module respectively.
Further, the external input keyboard of described second digital signal processing module.
Further, input keyboard is provided with five touch key-presss, the magnitude of voltage that five touch key-presss are corresponding different respectively, and is connected to the first digital signal processing module.
Further, described first Audio Input Modules, the first Audio Input Modules are respectively about two microphones placed.
The utility model first Audio Input Modules is connected to the second digital signal processing module by one first filtering circuit, second Audio Input Modules, the second digital signal processing module is connected to by one second filtering circuit, itself and described first Audio Input Modules, first filtering circuit composition Differential Input, first Audio Input Modules and the second Audio Input Modules are by transfer voice to the second digital signal processing module, second digital signal processing module is by Signal transmissions to the first digital signal processing module after process, this part noise of the sound sent by audio amplifier itself eliminates, the interference of all right some noises of filter out extraneous, enable the manipulation instruction of people very clean enter into the first digital signal processing module, and then reach that to wake program request rate up high, the characteristic that discrimination is high.
[accompanying drawing explanation]
The module map that Fig. 1 provides for the utility model embodiment;
The circuit block diagram that Fig. 2 provides for the utility model embodiment;
Fig. 3 provides the circuit diagram of the second digital signal processing module for the utility model embodiment;
What Fig. 4 provided for the utility model embodiment is the circuit diagram of Differential Input of the first Audio Input Modules and the second Audio Input Modules composition.
[embodiment]
The following example is to further explanation of the present utility model and supplements, and does not constitute any limitation the utility model.
As shown in Figure 1 to 4, the utility model embodiment provides a kind of Remote Wake Up formula playing speech on demand circuit, and it comprises:
One first digital signal processing module, also referred to as master control M-DSP, master control M-DSP can pass through WIFI connecting Internet, M-DSP has installed Android Voice command APK, phonetic order operation can be carried out to whole system, master control M-DSP based on Android system, built-in 4G internal memory Nandfalsh, and support that TFCARD expands, be responsible for audio decoder, speech recognition, io controls, Internet Transmission, the tasks such as system call.
One power amplifier module, connect described first digital signal processing module, signal in order to be produced by the first digital signal processing module amplifies, and power amplifier module is D class power amplifier AD82599, has high-effect and high SNR (SNR>100) advantage.
One audio-frequency module, connects the output terminal of described power amplifier module, and audio-frequency module is the loudspeaker of two 10W/8R.
One second digital signal processing module, also referred to as S-DSP, it is connected with the first digital signal processing module, the signal that described second digital signal processing module reception first digital signal processing module produces, the external input keyboard of described second digital signal processing module.
One first Audio Input Modules, is connected to the second digital signal processing module by one first filtering circuit.
One second Audio Input Modules, the second digital signal processing module is connected to by one second filtering circuit, itself and described first Audio Input Modules, the first filtering circuit form Differential Input, first Audio Input Modules and the second Audio Input Modules are by transfer voice to the second digital signal processing module, and the second digital signal processing module is by Signal transmissions to the first digital signal processing module after process.
One power module, connects the first digital signal processing module, power amplifier module, audio-frequency module, the second digital signal processing module respectively.
Further, the magnitude of voltage that five touch key-presss are corresponding different respectively, and be connected to the first digital signal processing module, master control M-SDP carries out corresponding operating by reading different magnitude of voltage, as controlled the broadcasting, time-out, volume increase reduction etc. of audio amplifier, effectively save I/O port and the PCB cabling of master control M-SDP, described first Audio Input Modules, the second Audio Input Modules are respectively about two microphones placed.
During use, the sound of outside is passed to S-DSP by about two microphones placed, sound comprises the instruction of people, external noise, and the music sound of audio amplifier itself, because master control M-SDP will send to the music of power amplifier module to issue S-DSP, and reserved in S-DSP, S-DSP can by inner complicated algorithm, and this part noise of the sound sent by audio amplifier itself eliminates.In addition, S-DSP can also the interference of some noises of filter out extraneous, enable the manipulation instruction of people very clean enter into master control M-SDP.Adopt the microphone (MIC) of two Differential Input, and can placement be separated by a distance, can accomplish that comprehensive remote speech operates, particularly can call out equipment at the far-end of distance 5-8 rice, as long as in the place that microphone can accept, all can wake-up device, the accurate identification of voice can also be ensured simultaneously.
Although disclosed the utility model by above embodiment, but scope of the present utility model is not limited thereto, under the condition not departing from the utility model design, above each component can be replaced with the similar or equivalent element that art personnel understand.
Claims (4)
1. a Remote Wake Up formula playing speech on demand circuit, is characterized in that, comprising:
One first digital signal processing module;
One power amplifier module, connects described first digital signal processing module, amplifies in order to the signal produced by the first digital signal processing module;
One audio-frequency module, connects the output terminal of described power amplifier module;
One second digital signal processing module, it is connected with the first digital signal processing module, the signal that described second digital signal processing module reception first digital signal processing module produces;
One first Audio Input Modules, is connected to the second digital signal processing module by one first filtering circuit;
One second Audio Input Modules, the second digital signal processing module is connected to by one second filtering circuit, itself and described first Audio Input Modules, the first filtering circuit form Differential Input, first Audio Input Modules and the second Audio Input Modules are by transfer voice to the second digital signal processing module, and the second digital signal processing module is by Signal transmissions to the first digital signal processing module after process;
One power module, connects the first digital signal processing module, power amplifier module, audio-frequency module, the second digital signal processing module respectively.
2. Remote Wake Up formula playing speech on demand circuit as claimed in claim 1, is characterized in that, be provided with audio decoder module in described first digital signal processing module.
3. Remote Wake Up formula playing speech on demand circuit according to claim 2, is characterized in that, be provided with the module of audio identification, filtration in described second digital signal processing module.
4. Remote Wake Up formula playing speech on demand circuit according to claim 1, is characterized in that, described first Audio Input Modules, the second Audio Input Modules are respectively about two microphones placed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520755129.3U CN205003507U (en) | 2015-09-25 | 2015-09-25 | Long -range formula pronunciation dibble seeding circuit that awakens up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520755129.3U CN205003507U (en) | 2015-09-25 | 2015-09-25 | Long -range formula pronunciation dibble seeding circuit that awakens up |
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| CN205003507U true CN205003507U (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520755129.3U Active CN205003507U (en) | 2015-09-25 | 2015-09-25 | Long -range formula pronunciation dibble seeding circuit that awakens up |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647545A (en) * | 2017-02-24 | 2017-05-10 | 北京沃凡思智选家居科技有限公司 | Target sound obtaining device and method and intelligent assembly by using same |
| CN109036411A (en) * | 2018-09-05 | 2018-12-18 | 深圳市友杰智新科技有限公司 | A kind of intelligent terminal interactive voice control method and device |
-
2015
- 2015-09-25 CN CN201520755129.3U patent/CN205003507U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647545A (en) * | 2017-02-24 | 2017-05-10 | 北京沃凡思智选家居科技有限公司 | Target sound obtaining device and method and intelligent assembly by using same |
| CN109036411A (en) * | 2018-09-05 | 2018-12-18 | 深圳市友杰智新科技有限公司 | A kind of intelligent terminal interactive voice control method and device |
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| GR01 | Patent grant |