CN103338293B - Based on binaural recording equipment and the way of recording thereof of intelligent telegraphone - Google Patents
Based on binaural recording equipment and the way of recording thereof of intelligent telegraphone Download PDFInfo
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Abstract
The present invention relates to a kind of binaural recording equipment based on intelligent telegraphone and the way of recording thereof.Solve current technical scheme and there is the larger problem of interference, its drip irrigation device is: comprise the called circuit of PSTN outside line, microphone send words circuit, phone MCU, AD conversion module, also comprise the first separate channels, second separate channels, send words partial circuit and called partial circuit, the input of described first separate channels is by AD conversion module and the called connection of PSTN outside line, the input of described second separate channels send words connection by AD conversion module and microphone, the described input of words partial circuit that send is connected with the output of the first described separate channels, the described output of words partial circuit that send is connected with described phone MCU input/output port, the input of described called partial circuit is connected with the output of the second described separate channels, the output of described called partial circuit is connected with the input/output port of described phone MCU.
Description
Technical field
The present invention is a kind of sound pick-up outfit and the way of recording thereof, particularly relates to a kind of binaural recording equipment based on intelligent telegraphone and the way of recording thereof.
Background technology
Along with the development of information technology, people are also increasingly extensive to the utilization of audio file, only do not need the acoustical quality hearing high-quality, more need by audio file analysis, thus reach and better utilize audio file, obtain useful audio-frequency information.
Summary of the invention
The object of the invention is to there is for solving current technical scheme the problem that interference is comparatively large, acoustical quality is poor, audio file analyzes difficulty, a kind of binaural recording equipment based on intelligent telegraphone and the way of recording thereof are provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of binaural recording equipment based on intelligent telegraphone, comprise the called circuit of PSTN outside line, microphone send words circuit, phone MCU, AD conversion module, also comprise the first separate channels, second separate channels, send words partial circuit and called partial circuit, the input of described first separate channels is by AD conversion module and the called connection of PSTN outside line, the input of described second separate channels send words connection by AD conversion module and microphone, the described input of words partial circuit that send is connected with the output of the first described separate channels, the described output of words partial circuit that send is connected with described phone MCU input/output port, the input of described called partial circuit is connected with the output of the second described separate channels, the output of described called partial circuit is connected with the input/output port of described phone MCU, described send words partial circuit called for PSTN outside line circuit and microphone to be sent to talk about circuit be separated, independent sample is carried out to the first separate channels content and sends into phone MCU, microphone send words circuit to be separated with the called circuit of PSTN outside line by described called partial circuit, independent sample is carried out to the second separate channels content and sends into phone MCU, phone MCU is merged into binaural recording after the sampled signal of the content of the first separate channels and the second separate channels is carried out AD conversion, realize the analysis and utilization to audio file.Present invention employs the mode that will words and called signal sent to isolate, sample respectively, strengthen acoustical quality, simultaneously also convenient the sound of different sound channels to be amplified, the audio operation such as change, can also when send words or called wherein a part be disturbed larger, the tonequality of another part is made to have good preservation, the field of evidence obtaining can be needed to play conclusive application to finance, law etc., stop that prior art affects greatly by environmental interference, the problem of lower tone of recording.
As preferably, the described words partial circuit that send comprises: input power VCC2, input AUOUT, electric capacity C29, resistance R63, resistance R64, resistance R66, optocoupler U3, triode Q14 and optocoupler U23, delivery outlet VPH, input MAUIN, resistance R29, resistance R67, resistance R69 electric capacity C26 and triode Q20, described input power VCC2 is successively by resistance R63, electric capacity C29 ground connection, power supply VCC2 is also successively by resistance R63, resistance R64, resistance R66 is connected with input AUOUT with electric capacity C30, power supply VCC2 is also connected with the control input end of optocoupler U3, the control output end of optocoupler U3 is connected with the control input end of optocoupler U23, first output of optocoupler U3 is connected with input AUOUT with electric capacity C30 by resistance R66 successively, second output head grounding of optocoupler U3, first output of optocoupler U3 is also connected with the base stage of triode Q14, the grounded emitter of triode Q14, the collector electrode of triode Q14 is connected with the control output end of optocoupler U23, first output of optocoupler U23 is connected with the base stage of triode Q20, first output of optocoupler U23 is also connected with the collector electrode of triode Q20 by resistance R69, second output of optocoupler U23 and the emitter of triode Q20, the grounded emitter of triode Q20, the collector electrode of triode Q20 is successively by resistance R67 and electric capacity C26 ground connection, the collector electrode of triode Q20 is successively by resistance R67, resistance R29 is connected with delivery outlet VPH, the collector electrode of triode Q20 is also connected with input MAUIN, described triode Q20 and triode Q14 is NPN pipe, input MAUIN send words connection by AD conversion module and microphone, delivery outlet VPH is electrically connected with described phone MCU, input AUOUT is by AD conversion module and the called connection of PSTN outside line.The present invention adopts circuit form like this, enhance isolation, reduce interference, the interference signal of words part is particularly sent effectively to be reduced, strengthen acoustical quality, simultaneously also convenient the sound of different sound channels to be amplified, the audio operation such as change, can also when send words or called wherein a part be disturbed larger, the tonequality of another part is made to have good preservation, the field of evidence obtaining can be needed to play conclusive application to finance, law etc., stop that prior art affects greatly by environmental interference, the problem of lower tone of recording.
As preferably, described called partial circuit comprises: resistance R113, resistance R112, resistance R99, resistance R158, resistance R160, resistance R114, resistance R154, resistance R104, resistance R97, resistance R103, R110, resistance R65, resistance R95, resistance R161, resistance R105 electric capacity C68, electric capacity C102, electric capacity C69, electric capacity C67, electric capacity C61, electric capacity C60, electric capacity C55, electric capacity C62, electric capacity C58, electric capacity C54, electric capacity C56, electric capacity C57, triode Q23, with triode Q22, triode Q21, earphone base J6, hands-free wheat MIC2, handle wheat MIC1, earphone wheat switch, hands-free wheat switch and handle wheat switch, described earphone wheat switch divides three tunnels by resistance R113, lead up to electric capacity C68 to ground, lead up to the 4th pin of resistance R112 to earphone base J6, one tunnel is successively by resistance R99, resistance R160 is to the base stage of triode Q23, triode Q23 collector electrode one road is connected to the tie point of resistance R160 and resistance R99, one tunnel is successively by electric capacity C69, resistance R114 sends into phone MCU, triode Q23 launching base is connected to ground, earphone base J6 the 4th pin is also by electric capacity C102, resistance R158 is to the base stage of triode Q23, one end ground connection of electric capacity C67, 4th pin of other end lug support J6, earphone base J6 the 5th pin passes through resistance R154 to ground, described hands-free wheat switch divides three tunnels by resistance R104, lead up to electric capacity C61 to ground, lead up to resistance R103 and resistance R110 to hands-free wheat MIC2 anode, lead up to resistance R97, resistance R161 is to the base stage of triode Q22, triode Q22 collector electrode one road is connected to the tie point of resistance R161 and resistance R97, one tunnel is successively by electric capacity C62, resistance R105 sends into phone MCU, triode Q22 launching base is connected to ground, the anode of hands-free wheat MIC2 is also by resistance R110, electric capacity C55, resistance R95 is to the base stage of triode Q22, electric capacity C60 one end ground connection, the other end is by the anode of resistance R110 to hands-free wheat MIC2, the negative terminal of hands-free wheat MIC2 passes through resistance R65 to ground, described handle wheat switch divides three tunnels by resistance R101, lead up to electric capacity C58 to ground, lead up to resistance R98 to handle wheat MIC1 anode, one tunnel is successively by resistance R94, resistance R162 is to the base stage of triode Q21, triode Q21 collector electrode one road is connected to the tie point of resistance R162 and resistance R94, lead up to electric capacity C56, resistance R96 sends into phone MCU, the launching base of triode Q21 is connected to ground, handle wheat MIC1 is also by electric capacity C57, resistance R1 is to the base stage of triode Q21, electric capacity C54 one end ground connection, other end connecting handle wheat MIC1 anode, handle wheat negative terminal is to ground.
Based on a binaural recording method for intelligent telegraphone, be applicable to, as claimed in claim 3 based on the binaural recording equipment of intelligent telegraphone, it is characterized in that:
Step one: send words circuit to obtain analog signal by the mutually isolated called circuit of PSTN outside line and microphone;
Step 2: the called line signal of PSTN outside line is by obtaining the first digital audio and video signals after AD conversion;
Step 3: send into phone MCU after sending words partial circuit the first digital audio and video signals to be carried out the isolation of light lotus root and amplifying signal;
Step 4: microphone send words line signal by obtaining the second digital audio and video signals after AD conversion;
Step 5: called partial circuit sends after the second digital audio and video signals amplifying signal into phone MCU;
Step 6: the second digital audio and video signals be separated and the first digital audio and video signals are mixed into dual channel data by phone MCU;
Step 7: mixed dual channel data is exported write storage card by phone MCU.
Present invention employs the mode that will words and called signal sent to isolate, sample respectively, strengthen acoustical quality, simultaneously also convenient the sound of different sound channels to be amplified, the audio operation such as change, can also when send words or called wherein a part be disturbed larger, the tonequality of another part is made to have good preservation, the field of evidence obtaining can be needed to play conclusive application to finance, law etc., stop that prior art affects greatly by environmental interference, the problem of lower tone of recording.
Substantial effect of the present invention is: structure of the present invention is simple, easy to use, cost is lower, present invention employs and will send words and the isolation of called signal, the mode of sampling respectively, strengthen acoustical quality, also facilitate simultaneously and the sound of different sound channels is amplified, the audio operations such as change, can also when send words or called wherein a part be disturbed larger, the tonequality of another part is made to have good preservation, can to finance, laws etc. need the field of evidence obtaining to play conclusive application, having stopped prior art affects greatly by environmental interference, the problem of recording lower tone.
Accompanying drawing explanation
Fig. 1 is the structural schematic block diagram of binaural recording equipment in the present invention;
Fig. 2 is the circuit theory schematic diagram sending words partial circuit in the present invention;
Fig. 3 is the circuit theory schematic diagram of called partial circuit in the present invention;
Fig. 4 is can only the circuit block diagram of telegraphone in the present invention.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment:
A kind of binaural recording equipment based on intelligent telegraphone is (see accompanying drawing 1, Fig. 4), comprise the called circuit of PSTN outside line, microphone send words circuit, phone MCU, AD conversion module, it is characterized in that: also comprise the first separate channels, second separate channels, send words partial circuit and called partial circuit, the input of described first separate channels is by AD conversion module and the called connection of PSTN outside line, the input of described second separate channels send words connection by AD conversion module and microphone, the described input of words partial circuit that send is connected with the output of the first described separate channels, the described output of words partial circuit that send is connected with described phone MCU input/output port, the input of described called partial circuit is connected with the output of the second described separate channels, the output of described called partial circuit is connected with the input/output port of described phone MCU, described send words partial circuit called for PSTN outside line circuit and microphone to be sent to talk about circuit be separated, independent sample is carried out to the first separate channels content and sends into phone MCU, microphone send words circuit to be separated with the called circuit of PSTN outside line by described called partial circuit, independent sample is carried out to the second separate channels content and sends into phone MCU, phone MCU is merged into binaural recording after the sampled signal of the content of the first separate channels and the second separate channels is carried out AD conversion, realize the analysis and utilization to audio file.Described words partial circuit (see accompanying drawing 2) of sending comprising: input power VCC2, input AUOUT, electric capacity C29, resistance R63, resistance R64, resistance R66, optocoupler U3, triode Q14 and optocoupler U23, delivery outlet VPH, input MAUIN, resistance R29, resistance R67, resistance R69 electric capacity C26 and triode Q20, described input power VCC2 is successively by resistance R63, electric capacity C29 ground connection, power supply VCC2 is also successively by resistance R63, resistance R64, resistance R66 is connected with input AUOUT with electric capacity C30, power supply VCC2 is also connected with the control input end of optocoupler U3, the control output end of optocoupler U3 is connected with the control input end of optocoupler U23, first output of optocoupler U3 is connected with input AUOUT with electric capacity C30 by resistance R66 successively, second output head grounding of optocoupler U3, first output of optocoupler U3 is also connected with the base stage of triode Q14, the grounded emitter of triode Q14, the collector electrode of triode Q14 is connected with the control output end of optocoupler U23, first output of optocoupler U23 is connected with the base stage of triode Q20, first output of optocoupler U23 is also connected with the collector electrode of triode Q20 by resistance R69, second output of optocoupler U23 and the emitter of triode Q20, the grounded emitter of triode Q20, the collector electrode of triode Q20 is successively by resistance R67 and electric capacity C26 ground connection, the collector electrode of triode Q20 is successively by resistance R67, resistance R29 is connected with delivery outlet VPH, the collector electrode of triode Q20 is also connected with input MAUIN, described triode Q20 and triode Q14 is NPN pipe, input MAUIN send words connection by AD conversion module and microphone, delivery outlet VPH is electrically connected with described phone MCU, input AUOUT is by AD conversion module and the called connection of PSTN outside line.Described called partial circuit (see accompanying drawing 3) comprising: resistance R113, resistance R112, resistance R99, resistance R158, resistance R160, resistance R114, resistance R154, resistance R104, resistance R97, resistance R103, R110, resistance R65, resistance R95, resistance R161, resistance R105 electric capacity C68, electric capacity C102, electric capacity C69, electric capacity C67, electric capacity C61, electric capacity C60, electric capacity C55, electric capacity C62, electric capacity C58, electric capacity C54, electric capacity C56, electric capacity C57, triode Q23, with triode Q22, triode Q21, earphone base J6, hands-free wheat MIC2, handle wheat MIC1, earphone wheat switch, hands-free wheat switch and handle wheat switch, described earphone wheat switch divides three tunnels by resistance R113, lead up to electric capacity C68 to ground, lead up to the 4th pin of resistance R112 to earphone base J6, one tunnel is successively by resistance R99, resistance R160 is to the base stage of triode Q23, triode Q23 collector electrode one road is connected to the tie point of resistance R160 and resistance R99, one tunnel is successively by electric capacity C69, resistance R114 sends into phone MCU, triode Q23 launching base is connected to ground, earphone base J6 the 4th pin is also by electric capacity C102, resistance R158 is to the base stage of triode Q23, one end ground connection of electric capacity C67, 4th pin of other end lug support J6, earphone base J6 the 5th pin passes through resistance R154 to ground, described hands-free wheat switch divides three tunnels by resistance R104, lead up to electric capacity C61 to ground, lead up to resistance R103 and resistance R110 to hands-free wheat MIC2 anode, lead up to resistance R97, resistance R161 is to the base stage of triode Q22, triode Q22 collector electrode one road is connected to the tie point of resistance R161 and resistance R97, one tunnel is successively by electric capacity C62, resistance R105 sends into phone MCU, triode Q22 launching base is connected to ground, the anode of hands-free wheat MIC2 is also by resistance R110, electric capacity C55, resistance R95 is to the base stage of triode Q22, electric capacity C60 one end ground connection, the other end is by the anode of resistance R110 to hands-free wheat MIC2, the negative terminal of hands-free wheat MIC2 passes through resistance R65 to ground, described handle wheat switch divides three tunnels by resistance R101, lead up to electric capacity C58 to ground, lead up to resistance R98 to handle wheat MIC1 anode, one tunnel is successively by resistance R94, resistance R162 is to the base stage of triode Q21, triode Q21 collector electrode one road is connected to the tie point of resistance R162 and resistance R94, lead up to electric capacity C56, resistance R96 sends into phone MCU, the launching base of triode Q21 is connected to ground, handle wheat MIC1 is also by electric capacity C57, resistance R1 is to the base stage of triode Q21, electric capacity C54 one end ground connection, other end connecting handle wheat MIC1 anode, handle wheat negative terminal is to ground.
Based on a binaural recording method for intelligent telegraphone, be applicable to the binaural recording equipment based on intelligent telegraphone described in embodiment,
Step one: send words circuit to obtain analog signal by the mutually isolated called circuit of PSTN outside line and microphone;
Step 2: the called line signal of PSTN outside line is by obtaining the first digital audio and video signals after AD conversion;
Step 3: send into phone MCU after sending words partial circuit the first digital audio and video signals to be carried out the isolation of light lotus root and amplifying signal;
Step 4: microphone send words line signal by obtaining the second digital audio and video signals after AD conversion;
Step 5: called partial circuit sends after the second digital audio and video signals amplifying signal into phone MCU;
Step 6: the second digital audio and video signals be separated and the first digital audio and video signals are mixed into dual channel data by phone MCU;
Step 7: mixed dual channel data is exported write storage card by phone MCU.
Wherein step 2 and step 4 are the step of synchronously carrying out, and step 2 and step 3 perform step for order, and step 4 is with step 5 for order performs step, and step 4 and step 5 are sequentially perform step; When step 5 and step 3 are all complete, perform step 6.
Above-described embodiment is one of the present invention preferably scheme, not does any pro forma restriction to the present invention, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (3)
1., based on a binaural recording equipment for intelligent telegraphone, comprise the called circuit of PSTN outside line, microphone send words circuit, phone MCU, AD conversion module, is characterized in that: also comprise the first separate channels, second separate channels, send words partial circuit and called partial circuit, the input of described first separate channels is by AD conversion module and the called connection of PSTN outside line, the input of described second separate channels send words connection by AD conversion module and microphone, the described input of words partial circuit that send is connected with the output of the first described separate channels, the described output of words partial circuit that send is connected with described phone MCU input/output port, the input of described called partial circuit is connected with the output of the second described separate channels, the output of described called partial circuit is connected with the input/output port of described phone MCU, described send words partial circuit called for PSTN outside line circuit and microphone to be sent to talk about circuit be separated, independent sample is carried out to the first separate channels content and sends into phone MCU, microphone send words circuit to be separated with the called circuit of PSTN outside line by described called partial circuit, independent sample is carried out to the second separate channels content and sends into phone MCU, phone MCU is merged into binaural recording after the sampled signal of the content of the first separate channels and the second separate channels is carried out AD conversion, realize the analysis and utilization to audio file, the described words partial circuit that send comprises: input power VCC2, input AUOUT, electric capacity C29, resistance R63, resistance R64, resistance R66, optocoupler U3, triode Q14 and optocoupler U23, delivery outlet VPH, input MAUIN, resistance R29, resistance R67, resistance R69 electric capacity C26 and triode Q20, described input power VCC2 is successively by resistance R63, electric capacity C29 ground connection, power supply VCC2 is also successively by resistance R63, resistance R64, resistance R66 is connected with input AUOUT with electric capacity C30, power supply VCC2 is also connected with the control input end of optocoupler U3, the control output end of optocoupler U3 is connected with the control input end of optocoupler U23, first output of optocoupler U3 is connected with input AUOUT with electric capacity C30 by resistance R66 successively, second output head grounding of optocoupler U3, first output of optocoupler U3 is also connected with the base stage of triode Q14, the grounded emitter of triode Q14, the collector electrode of triode Q14 is connected with the control output end of optocoupler U23, first output of optocoupler U23 is connected with the base stage of triode Q20, first output of optocoupler U23 is also connected with the collector electrode of triode Q20 by resistance R69, second output of optocoupler U23 and the emitter of triode Q20, the grounded emitter of triode Q20, the collector electrode of triode Q20 is successively by resistance R67 and electric capacity C26 ground connection, the collector electrode of triode Q20 is successively by resistance R67, resistance R29 is connected with delivery outlet VPH, the collector electrode of triode Q20 is also connected with input MAUIN, described triode Q20 and triode Q14 is NPN pipe, input MAUIN send words connection by AD conversion module and microphone, delivery outlet VPH is electrically connected with described phone MCU, input AUOUT is by AD conversion module and the called connection of PSTN outside line.
2. according to claim 1 based on the binaural recording equipment of intelligent telegraphone, it is characterized in that: described called partial circuit comprises: resistance R113, resistance R112, resistance R99, resistance R158, resistance R160, resistance R114, resistance R154, resistance R104, resistance R97, resistance R103, R110, resistance R65, resistance R95, resistance R161, resistance R105 electric capacity C68, electric capacity C102, electric capacity C69, electric capacity C67, electric capacity C61, electric capacity C60, electric capacity C55, electric capacity C62, electric capacity C58, electric capacity C54, electric capacity C56, electric capacity C57, triode Q23, with triode Q22, triode Q21, earphone base J6, hands-free wheat MIC2, handle wheat MIC1, earphone wheat switch, hands-free wheat switch and handle wheat switch, described earphone wheat switch divides three tunnels by resistance R113, lead up to electric capacity C68 to ground, lead up to the 4th pin of resistance R112 to earphone base J6, one tunnel is successively by resistance R99, resistance R160 is to the base stage of triode Q23, triode Q23 collector electrode one road is connected to the tie point of resistance R160 and resistance R99, one tunnel is successively by electric capacity C69, resistance R114 sends into phone MCU, triode Q23 launching base is connected to ground, earphone base J6 the 4th pin is also by electric capacity C102, resistance R158 is to the base stage of triode Q23, one end ground connection of electric capacity C67, 4th pin of other end lug support J6, earphone base J6 the 5th pin passes through resistance R154 to ground, described hands-free wheat switch divides three tunnels by resistance R104, lead up to electric capacity C61 to ground, lead up to resistance R103 and resistance R110 to hands-free wheat MIC2 anode, lead up to resistance R97, resistance R161 is to the base stage of triode Q22, triode Q22 collector electrode one road is connected to the tie point of resistance R161 and resistance R97, one tunnel is successively by electric capacity C62, resistance R105 sends into phone MCU, triode Q22 launching base is connected to ground, the anode of hands-free wheat MIC2 is also by resistance R110, electric capacity C55, resistance R95 is to the base stage of triode Q22, electric capacity C60 one end ground connection, the other end is by the anode of resistance R110 to hands-free wheat MIC2, the negative terminal of hands-free wheat MIC2 passes through resistance R65 to ground, described handle wheat switch divides three tunnels by resistance R101, lead up to electric capacity C58 to ground, lead up to resistance R98 to handle wheat MIC1 anode, one tunnel is successively by resistance R94, resistance R162 is to the base stage of triode Q21, triode Q21 collector electrode one road is connected to the tie point of resistance R162 and resistance R94, lead up to electric capacity C56, resistance R96 sends into phone MCU, the launching base of triode Q21 is connected to ground, handle wheat MIC1 is also by electric capacity C57, resistance R1 is to the base stage of triode Q21, electric capacity C54 one end ground connection, other end connecting handle wheat MIC1 anode, handle wheat negative terminal is to ground.
3., based on a binaural recording method for intelligent telegraphone, be applicable to, as claimed in claim 2 based on the binaural recording equipment of intelligent telegraphone, it is characterized in that:
Step one: send words circuit to obtain analog signal by the mutually isolated called circuit of PSTN outside line and microphone;
Step 2: the called line signal of PSTN outside line is by obtaining the first digital audio and video signals after AD conversion;
Step 3: send into phone MCU after sending words partial circuit the first digital audio and video signals to be carried out the isolation of light lotus root and amplifying signal;
Step 4: microphone send words line signal by obtaining the second digital audio and video signals after AD conversion;
Step 5: called partial circuit sends after the second digital audio and video signals amplifying signal into phone MCU;
Step 6: the second digital audio and video signals be separated and the first digital audio and video signals are mixed into dual channel data by phone MCU;
Step 7: mixed dual channel data is exported write storage card by phone MCU.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201374752Y (en) * | 2008-12-09 | 2009-12-30 | 北京歌尔泰克科技有限公司 | Bidirectional sound separating and collecting device of telephone |
| CN101778185A (en) * | 2009-01-13 | 2010-07-14 | 联芯科技有限公司 | On-line recording method and device of mobile terminal |
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| JP2013070285A (en) * | 2011-09-22 | 2013-04-18 | Nec Corp | Microphone and microphone system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201374752Y (en) * | 2008-12-09 | 2009-12-30 | 北京歌尔泰克科技有限公司 | Bidirectional sound separating and collecting device of telephone |
| CN101778185A (en) * | 2009-01-13 | 2010-07-14 | 联芯科技有限公司 | On-line recording method and device of mobile terminal |
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