CN205921736U - Voice digitization treater - Google Patents
Voice digitization treater Download PDFInfo
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- CN205921736U CN205921736U CN201620796012.4U CN201620796012U CN205921736U CN 205921736 U CN205921736 U CN 205921736U CN 201620796012 U CN201620796012 U CN 201620796012U CN 205921736 U CN205921736 U CN 205921736U
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- processor
- band filter
- speech
- treater
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Abstract
The utility model discloses a voice digitization treater includes treater, pronunciation collection system, pronunciation playback system, power module and voltage stabilizing circuit, power module passes through voltage stabilizing circuit and is connected with the treater, pronunciation collection system includes adapter, speech amplifier, a band pass filter, AD conversion module, the speech amplifier is connected with a speech perception circuit and a band pass filter respectively, AD conversion module is connected with a band pass filter and treater respectively, pronunciation playback system includes DA conversion module, the 2nd band pass filter, power amplifier, speaker, DA conversion module is connected with treater and the 2nd band pass filter respectively, power amplifier is connected with the 2nd band pass filter and speaker respectively, the treater still is connected with external memory. The utility model discloses small, circuit is simple, can realize the high -quality collection of speech information, playback and memory function.
Description
Technical field
This utility model is related to field of voice communication and in particular to a kind of voice digitization processor.
Background technology
Speech processing is an important branch of information science, along with large-scale integration technology high development with
And the advancing by leaps and bounds of computer technology, promote the fast development of voice process technology.Digital signal and analogue signal ratio
For relatively, digital signal is processing signal, and processing signal comes for the external environment condition having clutter and the circuit being also easy to produce distortion
Say there is preferable reliability.At present, the voice signal processor volume on market is big, and internal circuit is complicated, high cost,
And capacity of resisting disturbance is weak, communication distance is limited, is unfavorable for promoting the use of.
Utility model content
For overcoming the problems referred to above of the prior art, this utility model provides a kind of voice digitization processor, volume
Little, circuit is simple, be capable of high-quality voice collecting and playback.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of voice digitization processor, including processor, speech collecting system, audio playback system, power module with
And mu balanced circuit, described power module is connected with processor by mu balanced circuit；Described speech collecting system includes pick up, language
Sound amplifier, the first band filter, a/d modular converter, described speech amplifier respectively with phonetic incepting circuit and first band
Bandpass filter connects, and described a/d modular converter is connected with the first band filter and processor respectively；Described audio playback system
Including d/a modular converter, the second band filter, power amplifier, speaker, described d/a modular converter respectively with processor
Connect with the second band filter, described power amplifier is connected with the second band filter and speaker respectively；Described process
Device is also associated with external memory storage.
Preferably, described processor model is msp430 single-chip microcomputer.
Preferably, described pick up is condenser type Electret condenser microphone.
Preferably, model lm386 of described power amplifier.
Preferably, described external memory storage model eeprom at24c64.
Compared with prior art, this utility model have the advantages that this utility model small volume, circuit simple,
It is easily achieved, using msp430 single-chip microcomputer as processor, be capable of collection and the playback demand of quick response voice signal；Using
At24c64 to deposit speech data as external memory storage, disclosure satisfy that the storage of voice messaging long period；Peripheral circuit is auxiliary
With band filter, speech amplifier and power amplifier signal is filtered amplify it is ensured that information high-quality collection with
Playback.
Brief description
Fig. 1 is system block diagram of the present utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples, and embodiment of the present utility model includes
But it is not limited to the following example.
Embodiment
As shown in figure 1, a kind of voice digitization processor, including processor, speech collecting system, audio playback system,
Power module and mu balanced circuit, described power module is connected with processor by mu balanced circuit；Described speech collecting system bag
Include pick up, speech amplifier, the first band filter, a/d modular converter, described speech amplifier is electric with phonetic incepting respectively
Road and the first band filter connect, and described a/d modular converter is connected with the first band filter and processor respectively；Institute's predicate
Sound playback system includes d/a modular converter, the second band filter, power amplifier, speaker, and described d/a modular converter divides
It is not connected with processor and the second band filter, described power amplifier is connected with the second band filter and speaker respectively
Connect；Described processor is also associated with external memory storage.
In the present embodiment, specific components and parts signal is as follows:
Processor: msp430 single-chip microcomputer, aboundresources in a kind of 16 super low-power consumptions, fast operation, piece；
External storage: eeprom at24c64, it is connected with processor with i2c EBI；
Pick up: condenser type Electret condenser microphone mic, not only compact, also there is higher susceptiveness, or even wrist-watch
The sound of ticktack can also be collected.
Speech amplifier: the application circuit based on ua741 operational amplifier, outward element is few, and circuit performance is good, times magnification
Number is high, and common mode rejection ratio is high, and input impedance is high, and output impedance is low, good temp characteristic；
Power amplifier: the application circuit based on lm386, frequency response width, low in energy consumption, supply voltage subject range width, external
Element is few；
Band filter: free transmission range is 300hz～3.4khz；
A/d modular converter: in order to convert analog signals into digital signal, sample frequency 8khz；
D/a modular converter: in order to convert digital signals into analogue signal, conversion frequency 8khz.
In this utility model, voice signal switchs to voltage signal by pick up, is amplified by speech amplifier,
Before carrying out data acquisition to it, the clutter beyond band filter filters required frequency is it is ensured that high-quality information is adopted
Collection and playback；Msp430 single-chip microcomputer as processor, low in energy consumption, fast response time, and outside depositing is realized by i2c serial line interface
The connection of reservoir, meets the demand of voice messaging long storage time.
Above-described embodiment only preferred embodiment of the present utility model, the not restriction to this utility model protection domain,
In every case adopt design principle of the present utility model, and the change carrying out non-creativeness work on this basis and making, all should
Belong within protection domain of the present utility model.
Claims (5)
1. a kind of voice digitization processor is it is characterised in that include processor, speech collecting system, audio playback system, electricity
Source module and mu balanced circuit, described power module is connected with processor by mu balanced circuit；Described speech collecting system includes
Pick up, speech amplifier, the first band filter, a/d modular converter, described speech amplifier respectively with phonetic incepting circuit
Connect with the first band filter, described a/d modular converter is connected with the first band filter and processor respectively；Described voice
Playback system includes d/a modular converter, the second band filter, power amplifier, speaker, and described d/a modular converter is respectively
It is connected with processor and the second band filter, described power amplifier is connected with the second band filter and speaker respectively；
Described processor is also associated with external memory storage.
2. a kind of voice digitization processor according to claim 1 is it is characterised in that described processor model is
Msp430 single-chip microcomputer.
3. a kind of voice digitization processor according to claim 2 is it is characterised in that described pick up is stayed for condenser type
Electret microphone.
4. a kind of voice digitization processor according to claim 3 is it is characterised in that the model of described power amplifier
For lm386.
5. a kind of voice digitization processor according to claim 4 is it is characterised in that described external memory storage model
eeprom at24c64.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620796012.4U CN205921736U (en) | 2016-07-26 | 2016-07-26 | Voice digitization treater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620796012.4U CN205921736U (en) | 2016-07-26 | 2016-07-26 | Voice digitization treater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205921736U true CN205921736U (en) | 2017-02-01 |
Family
ID=57873309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620796012.4U Expired - Fee Related CN205921736U (en) | 2016-07-26 | 2016-07-26 | Voice digitization treater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205921736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108271006A (en) * | 2018-03-30 | 2018-07-10 | 云南秀达科技有限公司 | The wireless voice sound pick-up of monitoring camera and its high-resolution voice monitoring camera |
-
2016
- 2016-07-26 CN CN201620796012.4U patent/CN205921736U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108271006A (en) * | 2018-03-30 | 2018-07-10 | 云南秀达科技有限公司 | The wireless voice sound pick-up of monitoring camera and its high-resolution voice monitoring camera |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20180726 |