CN201017655Y - Novelmultifunctional control sound recording playback device - Google Patents
Novelmultifunctional control sound recording playback device Download PDFInfo
- Publication number
- CN201017655Y CN201017655Y CNU2006200131600U CN200620013160U CN201017655Y CN 201017655 Y CN201017655 Y CN 201017655Y CN U2006200131600 U CNU2006200131600 U CN U2006200131600U CN 200620013160 U CN200620013160 U CN 200620013160U CN 201017655 Y CN201017655 Y CN 201017655Y
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- storer
- nvm
- recording
- controller
- control
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Abstract
The utility model relates to a multifunctional control sound recording and playing device, which comprises an A/D converter, an ADOCN encoder/decoder, a NVM controller, a NVM storage, a micro control unit (MCU), a PWM audio drive, a microphone, and a loudspeaker. The sound recording and player device has the power-down protection function, and no data is lost when the power is down. A plurality of control programs are solidified in the MVM storage beforehand, the recorded sound can be played back after the sound is recorded, and a variety of effects can be realized through the control program, such as a frequency translation, combination, and background music mixing.
Description
Technical field
The utility model belongs to the voice technology field, refers more particularly to a kind of voice device of realizing multi-functional control recording playback sound.
Technical background
Voice technology comprises voice coding, phonetic synthesis, speech processes, speech recognition.The nineties voice technology is ripe gradually, and the voice product begins to occur on market.Can see various voice products on the particularly American-European in the world at present market, as: the speech digit sound-track engraving apparatus that Toshiba Corp, Korea S Samsung produce, the voice memo that U.S. Toshiba produces this, and some mobile phone handsets etc. with speech identifying function.This class voice product generally comprises compress speech special chip, A/D and D/A converter, microcontroller, external memorizer, microphone, loudspeaker etc.There are phonetic synthesis, speech recognition or voice coding program in the compress speech special chip.Now, recording device is all deposited recording among the SRAM of microcontroller mostly on the market, if power down suddenly, data can be lost.And, when voice signal is handled, the general OTP ROM (random access memory once able to programme) that uses, want institute's sound recording sound is carried out processing such as frequency conversion, combination, need programmed in OTP ROM earlier, then sound is carried out could emitting according to required effect after the burning.
The utility model content
The utility model patent provides a kind of novel multifunctional control recording and playing device, not only supports power down protection, can also handle institute's sound recording sound, plays back immediately.
The course of work of this device is: after microphone receives voice signal, convert voice signal to digital signal by A/D converter, be coded in through ADPCM (self-adaptation difference pulse code modulation (PCM)) compressed with codecs, under the control of controller, be deposited in the memory device, digital signal can be handled through MCU (micro controller unit), after the PWM audio driven, emit by loudspeaker.
Storer wherein is NVM storer (Non-Volatile Memory, does non-volatile storage), such storer comprise: FLASH storer, EEPROM (but electric erasing type programmable read only memory), OTP (ROM?) (disposable programmable memory) etc.
The structural drawing of this device as shown in Figure 1.
A/D converter is converted to digital signal with the sound signal that microphone receives, and signal is passed to the ADPCM codec again.Adopt a kind of voice compression algorithm based on waveform in the ADPCM codec, this algorithm is the particular algorithm of researching and developing in order to cooperate this device, can better compress voice signal.
Comprise in the NVM controller that order is provided with register, address setting register, read-write is provided with register, data register etc.
The fixed partition of NVM storer is: control block, recording speech data block, selection controll block, register backup block, as shown in Figure 2.Wherein, solidified some control programs in the control block in advance, can be after the recording, and can reach various effects through control program with institute's sound recording sound playback, as frequency conversion, combination, with the background music audio mixing etc.Select solidifying the selection control program in the controll block, can select recording frequency, record type etc.The register backup block is in the storage register state before power down, though like this after the power down data can not lose yet.
The MCU microcontroller is made up of order register, instruction codec, programmable counter, SRAM, STACK, storer (program exists in the NVM storer), I/O interface etc.
The PWM audio driven is converted into pwm pulse signal with the digital signal that receives, and then is converted to simulating signal, drives the loudspeaker sounding.
The utility model advantage is to support power down protection, and can directly handle institute's sound recording sound, plays back immediately, does not need programmed in OTP ROM earlier, then sound is carried out burning.In addition, this device circuit is simple, and cost is low.
By description of the preferred embodiment of the present invention, in conjunction with the following drawings, other characteristics of the present invention, purpose and effect will become and know more and easy to understand.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model.
Fig. 2 is a NVM storer when being the FLASH storer, structured flowchart of the present utility model.
Fig. 3 is the subregion situation in the storer.
Fig. 4 is a NVM storer when being eeprom memory, structured flowchart of the present utility model.
Embodiment
When the NVM storer was the FLASH storer, the structural drawing of recording device as shown in Figure 2.
When the recording beginning, the voice signal by microphone receives behind A/D converter, becomes digital signal; In adpcm encoder, behind the compressed encoding of employing based on waveform, deposit in the FLASH storer, or handle by MCU as required, by being solidificated in some programs in the FLASH storer, can to signal carry out frequency conversion, combination, with change such as background audio mixing, the FLASH storer of restoring; In the time will emitting recording, by the ADPCM decoding, digital signal is modulated into pwm signal by the PWM audio driven, be converted into simulating signal again, come out by loudspeaker plays.
Subregion situation in the FLASH storer still as shown in Figure 3.Wherein fixed partition is: control block, recording speech data block, selection controll block, register backup block.
The NVM storer can also be EEPROM.When the NVM storer is EEPROM, the structural drawing of recording device as shown in Figure 4, the subregion situation in the storer is still as shown in Figure 3.
Claims (5)
1. a novel multifunctional is controlled recording and playing device, after microphone receives voice signal, by A/D converter voice signal is changed into digital signal, be coded in through the ADPCM compressed with codecs, under the control of controller, be deposited in the memory device, digital signal can be handled through micro controller unit MCU, after the PWM audio driven, emit by loudspeaker, it is characterized in that: memory device wherein adopts the NVM storer, by NVM memory stores recording speech data, data can not lost after the power down; Control device adopts Memory Controller.
2. according to claim 1, it is characterized in that: control block has solidified some programs in advance, can directly realize to recording frequency conversion, combination, with processing such as background music audio mixing.
3. according to claim 1, it is characterized in that: select controll block solidifying option program in advance, can directly select recording frequency, record type etc.
4. shown in claim 1, it is characterized in that: the NVM storer can be the FLASH storer, and control device is the FLASH controller.
5. shown in claim 1, it is characterized in that: the NVM storer can be an eeprom memory, and control device is the EEPROM controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200131600U CN201017655Y (en) | 2006-04-11 | 2006-04-11 | Novelmultifunctional control sound recording playback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200131600U CN201017655Y (en) | 2006-04-11 | 2006-04-11 | Novelmultifunctional control sound recording playback device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201017655Y true CN201017655Y (en) | 2008-02-06 |
Family
ID=39058154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200131600U Expired - Lifetime CN201017655Y (en) | 2006-04-11 | 2006-04-11 | Novelmultifunctional control sound recording playback device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201017655Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789258A (en) * | 2010-04-02 | 2010-07-28 | 福州思迈特数码科技有限公司 | Vehicle-mounted DVD (Digital Video Disk) navigation and video-audio device adopting purely digital audio processing |
| CN104217750A (en) * | 2014-09-01 | 2014-12-17 | 北京塞宾科技有限公司 | A holographic audio record and playback method |
| CN105045578A (en) * | 2015-06-29 | 2015-11-11 | 广州酷狗计算机科技有限公司 | Method and apparatus for audio synthesis |
-
2006
- 2006-04-11 CN CNU2006200131600U patent/CN201017655Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789258A (en) * | 2010-04-02 | 2010-07-28 | 福州思迈特数码科技有限公司 | Vehicle-mounted DVD (Digital Video Disk) navigation and video-audio device adopting purely digital audio processing |
| CN104217750A (en) * | 2014-09-01 | 2014-12-17 | 北京塞宾科技有限公司 | A holographic audio record and playback method |
| WO2016033919A1 (en) * | 2014-09-01 | 2016-03-10 | 北京塞宾科技有限公司 | Holographic audio recording and playback method |
| CN105045578A (en) * | 2015-06-29 | 2015-11-11 | 广州酷狗计算机科技有限公司 | Method and apparatus for audio synthesis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHENZHEN SIGMACHIP MICROELECTRONICS CO., LTD. Assignor: Beijing Sigma Hexin Micro-electronic Technology Co., Ltd. Contract fulfillment period: 2009.6.9 to 2015.6.8 Contract record no.: 2009990000664 Denomination of utility model: Novelmultifunctional control sound recording playback device Granted publication date: 20080206 License type: Exclusive license Record date: 20090617 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.6.9 TO 2015.6.8; CHANGE OF CONTRACT Name of requester: SHENZHEN SIGMA MICROELECTRONICS CO.,LTD. Effective date: 20090617 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080206 |
|
| EXPY | Termination of patent right or utility model | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing Sigma Hexin Micro-electronic Technology Co., Ltd. Document name: Notification of Expiration of Patent Right Duration |