CN104658534A - Voice recognition system - Google Patents
Voice recognition system Download PDFInfo
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- CN104658534A CN104658534A CN201410688451.9A CN201410688451A CN104658534A CN 104658534 A CN104658534 A CN 104658534A CN 201410688451 A CN201410688451 A CN 201410688451A CN 104658534 A CN104658534 A CN 104658534A
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Abstract
The invention discloses a voice recognition system, and belongs to the field of voice recognition. The voice recognition system is characterized by comprising a controller, a voice recognition module, a storage module, a power module and an interaction module, wherein the voice recognition module is connected with the controller; the storage module is connected with the controller; the power module is connected with the controller; the interaction module is connected with the controller, and comprises an input circuit, an output circuit and an indication circuit. According to the voice recognition system, common electronic components are adopted, the relatively simple voice recognition system is formed by virtue of an embedded structure, and the system is simple in circuit and high in cost performance, can be conveniently embedded in a user system and has a broad market and a good application prospect; a building block type construction manner is adopted, so that high flexibility and practicability are achieved.
Description
Technical field
the invention belongs to field of speech recognition, particularly relate to a kind of speech recognition system.
Background technology
Along with the rapid advances of science and technology, various man-machine interaction product introduction has arrived in the middle of the life of people, greatly facilitate the life of people, interactive voice is means and most important media the most easily in Human communication and exchange information, for a long time, people wish to look for the interactive mode that a kind of new approach solves the mankind and machine, wish that machinery and equipment can " be listened " and understand that the voice messaging of the mankind carries out alternately, identify its implication and respond, thus make corresponding actions, such interactive mode more can be accepted by user, replace original keyboard, button, traditional interactive mode such as switch, speech recognition technology based on unspecified person becomes an important development direction and the study hotspot of man-machine interaction new paragon already.The identification of voice signal relates to numerous subject knowledge system, contain much information because voice signal has, uncertain, dynamic and successional feature, very large in the phase process data volume such as pre-service, feature extraction of voice signal, higher requirement is had to the Processing Algorithm of software and the processing power of hardware, tradition uses the platform of PC or the contour handling property of industrial computer to realize voice signal identification, but the too high development having hindered speech recognition technology of open of hardware and soft ware cost.
Summary of the invention
The present invention is intended to solve the problem, and provides a kind of speech recognition system.
A kind of speech recognition system, is characterized in that comprising controller, sound identification module, memory module, power module and interactive module; Wherein sound identification module is connected with controller; Storer is connected with controller; Power module is connected with controller; Interactive module is connected with controller; Interactive module comprises input circuit, output circuit and indicating circuit.
A kind of speech recognition system of the present invention, is characterized in that described controller adopts STM32F103C8T6 single-chip microcomputer to be controller.
A kind of speech recognition system of the present invention, is characterized in that described sound identification module adopts LD3320 voice recognition chip.
A kind of speech recognition system of the present invention, is characterized in that the frequency of operation of described controller is 72MHz.
A kind of speech recognition system of the present invention, is characterized in that described interactive module is provided with SD card interface, input key and USB interface.
A kind of speech recognition system of the present invention, by adopting the mode of some conventional electronic devices and components, Embedded structure is utilized to realize more single speech recognition system, circuit system is simple, cost performance is high, custom system can be embedded easily, brick pattern builds flexible practicality, has the market demand and application prospect widely.
Embodiment
A kind of speech recognition system, is characterized in that comprising controller, sound identification module, memory module, power module and interactive module; Wherein sound identification module is connected with controller; Storer is connected with controller; Power module is connected with controller; Interactive module is connected with controller; Interactive module comprises input circuit, output circuit and indicating circuit.
A kind of speech recognition system of the present invention, described controller adopts STM32F103C8T6 single-chip microcomputer to be controller, internal high-speed memories, has abundant I/O mouth resource and the peripheral hardware being linked to two APB buses.Include the ADC of 12b, general 16b timer, also comprise the buses such as I2C, SPI, USART, USB, CAN or serial communication interface, in sheet, resource and expansion interface are all very abundant, and this microcontroller core is that specialized designs is in the embedded product application meeting high stability, low-power consumption, real-time, high performance-price ratio.This core chip can meet the functional requirement of signer-independent sign language recognition, interlock circuit is utilized to form the minimum system of STM32F103C8T6, also be integrated with in hardware PCB function draw pin output interface, SD card interface, USB download debug circuit, user key-press, power circuit etc.Described sound identification module adopts LD3320 voice recognition chip, this chip is the special chip of signer-independent sign language recognition, inside has been integrated with voice recognition processor and some signal modulation circuits, have high performance A/D converter, D/A converter, microphone audio signal input interface, audio decoder output interface etc., user only needs by software editing lists of keywords good to be identified, LD3320 is maximum can support 50 crucial words and phrases, these row are not sent in chip with the form of character, just can carry out degree of approximation analysis to voice signal to be identified, Output rusults after identifying.The frequency of operation of described controller is 72MHz.Described interactive module is provided with SD card interface, input key and USB interface.This system bulk is small and exquisite, can incorporate in subscriber's line circuit or board as built-in module unit, after powering on, STM32F108C8T6 internal processes carries out program initialization, SD card file system initialization, LD3320 initialization, the audio interface to be identified such as subsequently receive, output response message or decoded audio after identification completes, finally realize the repertoire of brick pattern functional module.
Claims (5)
1. a speech recognition system, is characterized in that comprising controller, sound identification module, memory module, power module and interactive module; Wherein sound identification module is connected with controller; Storer is connected with controller; Power module is connected with controller; Interactive module is connected with controller; Interactive module comprises input circuit, output circuit and indicating circuit.
2. a kind of speech recognition system as claimed in claim 1, is characterized in that described controller adopts STM32F103C8T6 single-chip microcomputer to be controller.
3. a kind of speech recognition system as claimed in claim 1, is characterized in that described sound identification module adopts LD3320 voice recognition chip.
4. a kind of speech recognition system as claimed in claim 1, is characterized in that the frequency of operation of described controller is 72MHz.
5. a kind of speech recognition system as claimed in claim 1, is characterized in that described interactive module is provided with SD card interface, input key and USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410688451.9A CN104658534A (en) | 2014-11-26 | 2014-11-26 | Voice recognition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410688451.9A CN104658534A (en) | 2014-11-26 | 2014-11-26 | Voice recognition system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104658534A true CN104658534A (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410688451.9A Pending CN104658534A (en) | 2014-11-26 | 2014-11-26 | Voice recognition system |
Country Status (1)
| Country | Link |
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| CN (1) | CN104658534A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023236516A1 (en) * | 2022-06-10 | 2023-12-14 | Oppo广东移动通信有限公司 | Speech recognition method and apparatus, device, and storage medium |
-
2014
- 2014-11-26 CN CN201410688451.9A patent/CN104658534A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023236516A1 (en) * | 2022-06-10 | 2023-12-14 | Oppo广东移动通信有限公司 | Speech recognition method and apparatus, device, and storage medium |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |