CN202798855U - Microphone circuit module with reverberation and monitoring functions - Google Patents
Microphone circuit module with reverberation and monitoring functions Download PDFInfo
- Publication number
- CN202798855U CN202798855U CN201220453809.6U CN201220453809U CN202798855U CN 202798855 U CN202798855 U CN 202798855U CN 201220453809 U CN201220453809 U CN 201220453809U CN 202798855 U CN202798855 U CN 202798855U
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- circuit
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- reverberation
- microphone
- mobile phone
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- Circuit For Audible Band Transducer (AREA)
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Abstract
The utility model discloses a microphone circuit module with reverberation and monitoring functions. A circuit structure of the microphone circuit module includes that a sound pick-up is connected with an acoustoelectric conversion circuit, the acoustoelectric conversion circuit is connected with a pre-amplifier, the pre-amplifier is connected with a reverberation circuit, the reverberation circuit is connected with a mobile phone microphone (MIC) recording input end through the acoustoelectric conversion circuit, microphone sound subjected to reverberation processing and sound of mobile phone sound source vocal accompaniment are combined to be recorded and stored in the mobile phone, and recorded sound passes through an audio power amplifier so as to achieve output monitoring by an audio interface circuit. By means of the microphone circuit module, the reverberation processing for the recorded sound and monitoring function on audio recordings can be simultaneously achieved.
Description
Technical field
The utility model relates to circuit module, relates in particular to the circuit module that the microphone recording has reverberation and monitor function, belongs to the voicefrequency circuit field.
Background technology
Existing mobile phone when recording audio normally the recording microphone wind by mobile phone directly include sound, because the microphone of mobile phone self only is simple pick up facility, can't be to the sound processing of mediating, existing recording microphone is not good by mobile phone recording microphone wind recording result, can't realize hardware adjustments processing audio problem, so recording effect is relatively poor.
Simultaneously, existing recording microphone all can't be realized the effective monitoring to recording audio, can't find rapidly the problem that exists in the customer service recording.
The utility model content
Defective for prior art, the utility model discloses a kind of microphone circuit module, can realize reverberation processing and the real-time listening of microphone recording audio, not only can be so that recorded voice have simple and honest/mellow and full effect, and can realize the effect monitored while recording.
For achieving the above object, the utility model is achieved through the following technical solutions:
Microphone circuit module with reverberation and monitor function, comprise pick-up, the acoustic-electric change-over circuit, preamplifier, reverberation circuit, the electroacoustic change-over circuit, audio-frequency power amplifier, audio interface circuit, wherein pick-up is connected with the acoustic-electric change-over circuit, the acoustic-electric change-over circuit is connected with preamplifier, preamplifier connects reverberation circuit, reverberation circuit is connected to the recording input of mobile phone through the electroacoustic change-over circuit, audio transmission to the handset processes device of the audio frequency of the recording input of mobile phone and the input of mobile phone source of sound vocal accompaniment audio frequency is processed Record and Save, the electroacoustic change-over circuit connects audio-frequency power amplifier, the recording audio of mobile phone EMS memory storage is connected to audio-frequency power amplifier by the handset audio output, and audio-frequency power amplifier is connected with audio interface circuit.
The operation principle of the utility model circuit is: voice and ambient sound pass through microphone pickup, after acoustic-electric change-over circuit (A/D change-over circuit) conversion, amplify through preamplifier, carrying out echo by reverberation circuit after amplifying processes, by electroacoustic change-over circuit (D/A change-over circuit) signal being converted to audio signal after echo is processed enters mobile phone recording input (being generally recording MIC) and carries out overlap-add procedure with the audio frequency of inputting from mobile phone source of sound vocal accompaniment audio frequency, this processing is realized by the handset processes device, the handset processes device is processed recording audio and is preserved, then the audio output of mobile phone with the voice output that records of mobile phone EMS memory storage to audio-frequency power amplifier, audio-frequency power amplifier is transferred to audio interface circuit, can realize the recording effect monitoring.
Use for the ease of many people, described audio interface circuit is two-way, can realize double wheat despot's effect.
Process in order better recorded voice to be carried out audio, audio-frequency power amplifier also is connected with source of sound vocal accompaniment input.
In order to offer the power supply supply in the parts external worlds such as amplifier, the microphone circuit module also is provided with charging circuit, and described charging circuit one end connects charging input end, and the other end is connected to preamplifier.
In order to realize the regulating and controlling to sound, reverberation, charging, be connected with the volume switch circuit between described preamplifier and the reverberation circuit; Described reverberation circuit is connected with the reverberation switching circuit; Described charging circuit is connected with power switch circuit.
In scheme of the present utility model, each used circuit element is not subject to special restriction, and existing circuit structure is as long as can realize that structure described in the utility model both can be used for the utility model, preferred preamplifier is integrated chip IC2, and model is MSOP8-4809; Reverberation circuit is integrated chip IC2, and model is PT2399; The charging circuit power converting circuit is integrated chip IC6, and model is PT1301; Audio-frequency power amplifier is integrated chip IC5, and model is MSOP8-4809.
Description of drawings
Fig. 1 is the structural representation of the utility model circuit module;
Fig. 2 a is preamplifier, the reverberation circuit subelement connection layout of the utility model circuit module;
Fig. 2 b is the audio-frequency power amplifier of the utility model circuit module and the element connection layout of audio interface circuit part;
Fig. 3 is the element connection layout of the charging circuit part of the utility model circuit module.
Embodiment
Can better understand with reference to the accompanying drawings the structure of the utility model circuit module; the accompanying drawing of giving only for schematic diagram; be not the utility model to be consisted of be particularly limited, those skilled in the art still belong to protection range of the present utility model at the model of understanding the basis adjustment of the present utility model spirit, replacing, alternative each circuit element, link position etc.
With reference to figure 1, microphone circuit module of the present utility model, be mounted in the microphone, during use recording microphone is connected with the MIC input of mobile phone, voice and ambient sound, amplify by preamplifier through the conversion of acoustic-electric change-over circuit by microphone pickup, carries out echo by reverberation circuit after amplifying and process, echo is processed and is processed into the audio frequency that audio signal enters mobile phone recording input and the source of sound vocal accompaniment audio frequency input of playing from interior of mobile phone by the electroacoustic change-over circuit and carries out overlap-add procedure; Process Record and Save through the mobile phone processor, the sound that records that mobile phone EMS memory stores up is the output of realization power amplifier after audio-frequency power amplifier amplifies processing, and offer many people's uses by the double-channel audio interface, and the monitoring effect realizes recording.
Wherein, be provided with charging circuit preamplifier etc. is carried out supply of electric power.
Wherein, audio-frequency power amplifier also is connected with source of sound vocal accompaniment input, is used for input vocal accompaniment audio frequency.
With reference to figure 2a, 2b, a kind of specific implementation for circuit module of the present utility model, its course of work is: power supply VCC powers to pick-up through resistance R 1 and R2 dividing potential drop, make pick-up work, voice and ambient sound pass through microphone pickup, sending into the one-level pre-amplification circuit that is comprised of R9/R3/C5/IC2 MSOP4809 through the C9 capacitive coupling amplifies, through capacitor C 11 couplings, after carrying out the adjusting of reverberation amount and reverberation time by reverberation IC1 PT2399 and reverberation IC peripheral circuit, another amplification end (being comprised of R13/R15/C18/C21/R16/IC2) finally by IC2 amplifies processing, again by MIC OUT2 input, be input to mobile phone, carrying out Record and Save in conjunction with the handset audio accompaniment finishes, record to such an extent that sound is input to audio-frequency power amplifier by mobile phone output through the MICRO USB interface and amplifies and export to the two-way audio interface circuit, realize the effect of monitoring while recording.
Claims (7)
1. the microphone circuit module that has reverberation and monitor function, comprise pick-up, the acoustic-electric change-over circuit, preamplifier, reverberation circuit, the electroacoustic change-over circuit, audio-frequency power amplifier, audio interface circuit, it is characterized in that pick-up is connected with the acoustic-electric change-over circuit, the acoustic-electric change-over circuit is connected with preamplifier, preamplifier connects reverberation circuit, reverberation circuit is connected to the recording input of mobile phone through the electroacoustic change-over circuit, audio transmission to the handset processes device of the audio frequency of the recording input of mobile phone and the input of mobile phone source of sound vocal accompaniment audio frequency is processed Record and Save, the electroacoustic change-over circuit connects audio-frequency power amplifier, the recording audio of mobile phone EMS memory storage is connected to audio-frequency power amplifier by the handset audio output, and audio-frequency power amplifier is connected with audio interface circuit.
2. microphone circuit module according to claim 1 is characterized in that described audio interface circuit is two-way.
3. microphone circuit module according to claim 1 is characterized in that audio-frequency power amplifier also is connected with source of sound vocal accompaniment input.
4. microphone circuit module according to claim 1 is characterized in that also being provided with charging circuit, and described charging circuit one end connects charging input end, and the other end is connected to preamplifier.
5. microphone circuit module according to claim 1 is characterized in that being connected with between described preamplifier and the reverberation circuit volume switch circuit.
6. microphone circuit module according to claim 1 is characterized in that described reverberation circuit is connected with the reverberation switching circuit.
7. microphone circuit module according to claim 4 is characterized in that described charging circuit is connected with power switch circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220453809.6U CN202798855U (en) | 2012-09-07 | 2012-09-07 | Microphone circuit module with reverberation and monitoring functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220453809.6U CN202798855U (en) | 2012-09-07 | 2012-09-07 | Microphone circuit module with reverberation and monitoring functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202798855U true CN202798855U (en) | 2013-03-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220453809.6U Expired - Lifetime CN202798855U (en) | 2012-09-07 | 2012-09-07 | Microphone circuit module with reverberation and monitoring functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202798855U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105959875A (en) * | 2016-05-27 | 2016-09-21 | 贵州奥斯科尔科技实业有限公司 | Vehicle-mounted KTV control device |
| CN107241671A (en) * | 2017-07-01 | 2017-10-10 | 邓永林 | A kind of sound system audio processing method and intelligent sound processing system |
| CN108184179A (en) * | 2018-02-05 | 2018-06-19 | 北京唱吧科技股份有限公司 | A kind of microphone apparatus |
| CN108833023A (en) * | 2018-09-11 | 2018-11-16 | 上海掌门科技有限公司 | interception device |
-
2012
- 2012-09-07 CN CN201220453809.6U patent/CN202798855U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105959875A (en) * | 2016-05-27 | 2016-09-21 | 贵州奥斯科尔科技实业有限公司 | Vehicle-mounted KTV control device |
| CN107241671A (en) * | 2017-07-01 | 2017-10-10 | 邓永林 | A kind of sound system audio processing method and intelligent sound processing system |
| CN108184179A (en) * | 2018-02-05 | 2018-06-19 | 北京唱吧科技股份有限公司 | A kind of microphone apparatus |
| CN108833023A (en) * | 2018-09-11 | 2018-11-16 | 上海掌门科技有限公司 | interception device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
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| CX01 | Expiry of patent term |