CN107205191B - A kind of interior recording device extended by ear microphone jack and method - Google Patents
A kind of interior recording device extended by ear microphone jack and method Download PDFInfo
- Publication number
- CN107205191B CN107205191B CN201710607438.XA CN201710607438A CN107205191B CN 107205191 B CN107205191 B CN 107205191B CN 201710607438 A CN201710607438 A CN 201710607438A CN 107205191 B CN107205191 B CN 107205191B
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- circuit
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- resistance
- microphone
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1041—Mechanical or electronic switches, or control elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
Abstract
The invention discloses a kind of interior recording device extended by ear microphone jack and methods.Described device is provided with the plug and circuit of earphone microphone plug, and the earphone microphone plug is for accessing ear microphone jack；4 section earphone microphone plugs are accessed ear microphone jack and are based on the circuit, extend acoustic by the circuit for connecting with earphone microphone plug.The method includes the steps: S1. introduces sound channel signal；S2. to the sound channel signal of introducing, partial pressure and audio mixing are carried out；S3. it divides and the signal after audio mixing, progress level signal matching and decaying；S4. by the audio signal after matching and decaying, it is introduced to the input terminal of microphone, reaches interior record acoustic.The present invention solves the problems, such as to use the outer record mode capture systems sound poor anti jamming capability of tradition, noise big, voice capturing, transmission, the application software for recording class and program can be helped from microphone with this device and method, capture the audio signal of high quality.
Description
Technical field
The present invention relates to Audio Signal Processing technology, specifically a kind of interior recording device extended by ear microphone jack
And method.
Background technique
On most PCs and smart machine, such as Android mobile phone, it is not provided with system sound on hardware at present
The function of recording in sound, most systems voice capturing, transmission, monitoring, the application software for recording class, can only pick up from external microphone
The sound of loudspeaker is taken, but can simultaneously be mixed external noise in audio signal together, signal quality is excessively poor, it is difficult to full
The actual needs of sufficient high quality audio processing.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of extended by ear microphone jack in
Recording device and method solve the problems, such as, satisfaction big using the outer record mode capture systems sound poor anti jamming capability of tradition, noise
Smart machine audio capturing, transmission, recording actual needs.
The purpose of the present invention is achieved through the following technical solutions: it is a kind of extended by ear microphone jack in
Recording device, comprising:
Earphone microphone plug and circuit；
The earphone microphone plug, for accessing ear microphone jack；
The circuit, for being connect with earphone microphone plug；
The earphone microphone plug is accessed into ear microphone jack and is based on the circuit, interior record extension is carried out and passes
Sound.
Further, the circuit includes:
Sound channel signal introduces sub-circuit (a), partial pressure and audio mixing sub-circuit (b) and matching and decaying sub-circuit (c)；
The sound channel signal introduces sub-circuit (a) and connect with partial pressure and audio mixing sub-circuit (b), the partial pressure and audio mixing electricity
Road (b) is connect with matching and decaying sub-circuit (c).
Further, it includes: first resistor and second resistance that the sound channel signal, which introduces sub-circuit (a),；
Further, one end of the first resistor is connect with plug L channel tie point, another termination second resistance；
One end of the second resistance is connect with plug right channel tie point, another termination first resistor.
Further, the partial pressure and audio mixing sub-circuit (b) include: 3rd resistor；
Further, one end of the 3rd resistor is connect with plug earthed tie point, another termination first resistor and
Second resistance common connecting point.
Further, the matching and decaying sub-circuit (c) include: the 4th resistance, the 5th resistance and capacitor；
Further, one end of the capacitor is connect with plug microphone input tie point, the other end and the 4th resistance
One end connection, another termination first resistor of the 4th resistance, second resistance, 3rd resistor common connecting point, it is described 5th electricity
On one end Jie capacitor of resistance and the line of plug microphone input tie point, other end connection plug ground connection point.
Recording method in a kind of audio signal extended by ear microphone jack, includes the following steps:
By extending acoustic from ear microphone jack, audio signal is captured.
Further, include the following steps:
S1: sound channel signal is introduced；
S2: to the sound channel signal of introducing, partial pressure and audio mixing are carried out；
S3: by the signal after partial pressure and audio mixing, level signal matching and decaying are carried out；
S4: by the audio signal after matching and decaying, being introduced to the input terminal of microphone, to reach interior record acoustic.
The beneficial effects of the present invention are:
(1) present invention can replace the prior art that the sound of loudspeaker is picked up from external microphone, is voice capturing, passes
Defeated, monitoring, the application software for recording class and program provide a kind of new solution from microphones capture audio signal.
(2) present invention can integrate on PC or smart machine, and PC or smart machine is made to have system
The function of recording in sound meets types of applications software to the capture of high-quality audio signal, transmission, supervision and records demand, answers
For the various smart machines for needing acquisition system sound and application program.
(3) present invention carries out voice extension transmitting in ear microphone jack, can interfere to avoid external noise, improves
The audio signal quality of acquisition, enhances signal anti-interference ability, can satisfy the actual needs of high quality audio processing.
(4) sound channel signal of the invention introduces sub-circuit and introduces stereo two sound channel signals, by partial pressure and audio mixing
Sub-circuit divided, the signal after audio mixing, level signal matching and decaying is carried out to microphone, using matching and attenuator
Circuit is isolated bias voltage, after matching impedance, audio signal is input to microphone input circuit, can be with this device and method
Help voice capturing, transmission, the application software for recording class and program from microphones capture to high quality, almost noiseless audio
Signal.
Detailed description of the invention
Circuit diagram Fig. 1 of the invention.
Fig. 2 is circuit structure diagram of the invention.
Fig. 3 is method and step flow chart of the invention.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing, but protection scope of the present invention is not limited to
It is as described below.
[embodiment one]
As shown in figures 1 and 2, a kind of interior recording device extended by ear microphone jack, comprising:
4 section earphone microphone plugs and circuit；
The 4 section earphone microphone plug, for accessing ear microphone jack；
The circuit, for being connect with 4 section earphone microphone plugs；
The 4 section earphone microphone plug is accessed into ear microphone jack and is based on the circuit, extends acoustic.
Further, the circuit includes:
Sound channel signal introduces sub-circuit (a), partial pressure and audio mixing sub-circuit (b) and matching and decaying sub-circuit (c)；
The sound channel signal introduces sub-circuit (a) and connect with partial pressure and audio mixing sub-circuit (b), the partial pressure and audio mixing electricity
Road (b) is connect with matching and decaying sub-circuit (c).
Further, it includes: first resistor R1 and second resistance R2 that the sound channel signal, which introduces sub-circuit (a),；
Further, one end of the first resistor R1 is connect with plug L channel tie point L, another the second electricity of termination
Resistance；One end of the second resistance R2 is connect with plug right channel tie point R, another termination first resistor.
Further, the partial pressure and audio mixing sub-circuit (b) include: 3rd resistor R3；
Further, one end of the 3rd resistor R3 is connect with plug ground terminal tie point GND, another the first electricity of termination
Hinder R1 and second resistance R2 common connecting point.
Further, the matching and decaying sub-circuit (c) include: the 4th resistance R4, the 5th resistance R5 and capacitor C1；
Further, one end of the capacitor C1 is connect with plug microphone input tie point MIC, the other end and the 4th
One end of resistance R4 connects, and another termination first resistor R1, second resistance R2, the 3rd resistor R3 of the 4th resistance R4 is connected jointly
On point, an end Jie capacitor of the 5th resistance R5 and the line of plug microphone input tie point MIC, other end connection
On the line of 3rd resistor R3 and plug ground terminal tie point GND.
As shown in figure 3, recording method in a kind of audio signal extended by ear microphone jack, includes the following steps:
By extending acoustic from ear microphone jack, audio signal is captured.
Further, include the following steps:
S1: sound channel signal is introduced；
S2: to the sound channel signal of introducing, partial pressure and audio mixing are carried out；
S3: by the signal after partial pressure and audio mixing, level signal matching and decaying are carried out；
S4: by the audio signal after matching and decaying, being introduced to the input terminal of microphone, to reach interior record acoustic.
In an embodiment of the present invention, resistance R1, R2 introduces stereo two sound channel signals, through resistance R3 partial pressure, mixes
Signal after sound carries out level signal matching and decaying, after resistance R4, R5, capacitor C1 isolation bias voltage, matching impedance
Audio signal is input to microphone input circuit, device plug can access the standard line traffic control ear microphone jack of 3.5mm, this
Field technical staff can design size according to actual needs, meet the actual needs of most of ear microphone jacks.It utilizes
This device and method can help voice capturing, transmission, the application software and program for recording class, from microphones capture to high quality
Noiseless audio signal, including being applied to the various smart machines for needing acquisition system sound and application program.
The above is only a preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and can be at this
In the text contemplated scope, modifications can be made through the above teachings or related fields of technology or knowledge.And those skilled in the art institute into
Capable modifications and changes do not depart from the spirit and scope of the present invention, then all should be in the protection scope of appended claims of the present invention
It is interior.
Claims (5)
1. a kind of interior recording device extended by ear microphone jack, which is characterized in that including earphone microphone plug and electricity
Road；The earphone microphone plug, for accessing ear microphone jack；The circuit, is used for and earphone microphone plug
Connection；The earphone microphone plug accesses ear microphone jack and is based on the circuit, carries out interior record extension acoustic；
The circuit includes that sound channel signal introduces sub-circuit (a), partial pressure and audio mixing sub-circuit (b) and matching and decaying sub-circuit
(c)；The sound channel signal introduces sub-circuit (a) and connect with partial pressure and audio mixing sub-circuit (b), the partial pressure and audio mixing sub-circuit
(b) it is connect with matching and decaying sub-circuit (c).
2. a kind of interior recording device extended by ear microphone jack according to claim 1, it is characterised in that: described
Sound channel signal introduce sub-circuit (a) include: first resistor and second resistance；One end of the first resistor and plug L channel
Tie point connection, another termination second resistance；One end of second resistance is connect with plug right channel tie point, another termination
First resistor.
3. a kind of interior recording device extended by ear microphone jack according to claim 1, it is characterised in that: described
Partial pressure and audio mixing sub-circuit (b) include: 3rd resistor；One end of the 3rd resistor is connect with plug earthed tie point,
Another termination first resistor and second resistance common connecting point.
4. a kind of interior recording device extended by ear microphone jack according to claim 1, it is characterised in that: described
Matching and decaying sub-circuit (c) include: the 4th resistance, the 5th resistance and capacitor；One end of the capacitor and plug microphone
Incoming junction connection, the other end are connect with one end of the 4th resistance, another termination first resistor of the 4th resistance, the second electricity
On resistance, 3rd resistor common connecting point, an end Jie capacitor of the 5th resistance and the line of plug microphone input tie point,
Other end connection plug ground connection point.
5. recording method in a kind of audio signal extended by ear microphone jack, which is characterized in that by from earphone Mike
Acoustic is extended at wind jack, is captured audio signal, is included the following steps:
S1: sound channel signal is introduced；
S2: to the sound channel signal of introducing, partial pressure and audio mixing are carried out；
S3: by the signal after partial pressure and audio mixing, level signal matching and decaying are carried out；
S4: by the audio signal after matching and decaying, being introduced to the input terminal of microphone, to reach interior record acoustic.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710607438.XA CN107205191B (en) | 2017-07-24 | 2017-07-24 | A kind of interior recording device extended by ear microphone jack and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710607438.XA CN107205191B (en) | 2017-07-24 | 2017-07-24 | A kind of interior recording device extended by ear microphone jack and method |
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| CN107205191A CN107205191A (en) | 2017-09-26 |
| CN107205191B true CN107205191B (en) | 2019-04-30 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109495814B (en) * | 2018-11-21 | 2021-11-26 | 广州市百果园信息技术有限公司 | Audio connector, audio signal processing method and audio signal processing system |
| CN113035218B (en) * | 2019-12-09 | 2022-08-02 | 北京君正集成电路股份有限公司 | Method for optimizing audio signal in audio acquisition process |
| CN112345981B (en) * | 2020-09-25 | 2023-06-27 | 深圳宝新创科技股份有限公司 | Detection jig and method for detecting audio socket |
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| CN202373308U (en) * | 2011-12-09 | 2012-08-08 | 艾利和电子科技(中国)有限公司 | Recording circuit for improving recording quality |
| CN103379408A (en) * | 2012-04-26 | 2013-10-30 | 国民技术股份有限公司 | Signal processing module |
| CN203631121U (en) * | 2013-11-08 | 2014-06-04 | 华中科技大学 | Audio processing equipment with recording control function |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1918703B1 (en) * | 2007-02-07 | 2015-06-24 | Tata Steel UK Limited | Acoustic emission control of slag height in a steelmaking process |
| CN101350854A (en) * | 2008-08-20 | 2009-01-21 | 嘉兴闻泰通讯科技有限公司 | Mobile phone with FM inside recording function and method for FM inside recording |
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- 2017-07-24 CN CN201710607438.XA patent/CN107205191B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202373308U (en) * | 2011-12-09 | 2012-08-08 | 艾利和电子科技(中国)有限公司 | Recording circuit for improving recording quality |
| CN103379408A (en) * | 2012-04-26 | 2013-10-30 | 国民技术股份有限公司 | Signal processing module |
| CN203631121U (en) * | 2013-11-08 | 2014-06-04 | 华中科技大学 | Audio processing equipment with recording control function |
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| CN107205191A (en) | 2017-09-26 |
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