CN105933073B - A kind of ultrasonic wave coding/decoding system and computational methods based on wireless acoustic signals - Google Patents
A kind of ultrasonic wave coding/decoding system and computational methods based on wireless acoustic signals Download PDFInfo
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- CN105933073B CN105933073B CN201610477711.7A CN201610477711A CN105933073B CN 105933073 B CN105933073 B CN 105933073B CN 201610477711 A CN201610477711 A CN 201610477711A CN 105933073 B CN105933073 B CN 105933073B
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
Abstract
The present invention provides a kind of ultrasonic wave coding/decoding systems and computational methods based on wireless acoustic signals, including data processing module, data cache module, network communication module, address coding module, clock module, data communication bus module, drive module, manipulate unit, audio signal sample unit, filter module and audio coding module, data communication bus module respectively with data cache module, network communication module, address coding module, clock module, drive module, filter module and the connection of audio coding modular electrical, its computational methods includes structure computing platform, audio collection, four steps such as audio coding and generation audio.One aspect of the present invention can effectively improve working efficiency and the accuracy of audio-frequency signal coding operation, on the other hand efficiency, the accuracy of sound-reducing of audio decoder operation can be effectively improved, while audio file output form can be adjusted flexibly according to actual needs when carrying out sound-reducing.
Description
Technical field
The present invention relates to a kind of sound signal encoding Transmission systems, are exactly a kind of super based on wireless acoustic signals
Sound wave coding/decoding system and computational methods.
Background technology
Reach in the fields such as daily life, industrial production now with automatic technology and intellectualized technology and widely answers
With, directly equipment is manipulated using voice and has been increasingly becoming important one of the mode of operation of intelligence control system, in order to
Meet the needs that audio signal transmits operation at a distance, generally requires audio being compiled by coding and pass through communication network system
Identifiable data file can be transmitted, and for this needs, the Compilation Method of current generally use is often by right
Audio file content is compressed, then by compressed file direct compilation at the identifiable data-signal of communication network system
It is transmitted, although the needs transmitted to audio model can be met, the working efficiency phase of one side audio-frequency signal coding operation
To low, another aspect audio signal frequently can lead to audio quality decline after code conversion, even be lost when serious
True phenomenon, while when being restored to audio signal can not need to be adjusted flexibly the conversion shape of audio model according to using
Formula, therefore the current audio coding mode generally used can not effectively meet the needs of actual use, it is existing for this
Shape, there is an urgent need to develop a kind of completely new audio coding system and corresponding coding computational methods, to meet actual use
Needs.
Invention content
The object of the present invention is to provide the present invention provide a kind of ultrasonic wave coding/decoding system based on wireless acoustic signals and
Computational methods and test method and test method.
In order to achieve the above object, the present invention provides the following technical solutions：
A kind of ultrasonic wave coding/decoding system based on wireless acoustic signals, including data processing module, data cache module,
Network communication module, address coding module, clock module, data communication bus module, drive module, manipulation unit, audio letter
Number collecting unit, filter module and audio coding module, data communication bus module respectively with data cache module, network communication
Module, address coding module, clock module, drive module, filter module and the connection of audio coding modular electrical, data buffer storage mould
Block is separately electrically connected with data processing module, and drive module is separately electrically connected with manipulation unit, audio signal sample unit respectively,
Audio signal sample unit is connect by data cache module with filter module and audio coding modular electrical, filter module and sound
Frequency coding module is electrically connected, and clock module sets at least one frequency division module and connect with data communication bus modular electrical.
A kind of computational methods of the ultrasonic wave coding/decoding system based on wireless acoustic signals, include the following steps：
The first step builds computing platform, and assistance time reference coordinate points are at least calculated all the way using frequency division module structure, and
Time coordinate point is labeled as t1, t2, t3 ... tn, wherein n >=5, while it includes 32 characters to build（[0-9, a-v]）Audio text
Part compares list, and each character is corresponding with the mapping of specific acoustic wave frequency；
Second step, audio collection are acquired external audio signal using audio signal sample unit, and by filtering mould
Block carries out clutter filtering；
Third walks, audio coding, by filtered audio signal transmission to audio coding module by audio coding module
Coded treatment is carried out, when coding, audio file is divided into several segment files by the reference coordinate point built first with the first step,
And the time of each segment file is recorded respectively, each segment file is then directed to by audio coding module respectively to each section audio text
Part is encoded, wherein every section of sound wave file includes 20 characters in character lists, and when the corresponding pronunciation of each character
Between be not more than 90 milliseconds, wherein 5 characters that are no more than of 20 character most leading portions are start information mark point, most back segment does not surpass
It is termination message mark point to cross 5 each characters, and intermediate several characters are then to pass through audio coding module in the carrying of sound wave information
Corresponding 20 characters of sound wave file are compiled into machine code to be transmitted；
4th step generates audio, and the audio file for receiving by coding transmission is solved by audio coding module
Machine code audio file when decoding, is converted to corresponding 20 character files of sound wave file by code first, then according to character text
The corresponding frequency of part generates pure tone frequency file
Further, the machine code in third step and the 4th step is binary machine code, 8 system Doraemons and ten
Any one or a few of senary machine code is used in mixed way.
Further, when producing pure tone frequency file in the 4th step, production file type is that all-wave wave is sinusoidal
File, in advance all-wave sine wave file, delay all-wave sine wave file, full-wave rectification are averaged half-sine wave file and halfwave rectifier
Any one being averaged in half all-wave sine wave file.
The configuration of the present invention is simple, operation high degree of automation, operate flexible and convenient, on the one hand can effectively improve audio signal
On the other hand the working efficiency and the accuracy that encode operation can effectively improve the efficiency of audio decoder operation, sound-reducing
Accuracy, while audio file output form can be adjusted flexibly according to actual needs when carrying out sound-reducing, to have
The working efficiency and quality of the encoding and decoding operation of the raising audio file of effect.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is schematic structural view of the invention；
Fig. 2 is application method flow chart of the present invention.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with the attached drawing of the present invention, it is clear that retouched
The embodiment stated is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without creative efforts, belongs to the present invention
The range of protection.
A kind of ultrasonic wave coding/decoding system based on wireless acoustic signals as shown in Figure 1, including data processing module 1,
Data cache module 2, network communication module 3, address coding module 4, clock module 5, data communication bus module 6, driving mould
Block 7, manipulation unit 8, audio signal sample unit 9, filter module 10 and audio coding module 11, data communication bus module 6
Respectively with data cache module 2, network communication module 3, address coding module 4, clock module 5, drive module 7, filter module
10 and audio coding module 11 be electrically connected, data cache module 2 is separately electrically connected with data processing module 1, and drive module 7 is another
It is electrically connected respectively with manipulation unit 8, audio signal sample unit 9, audio signal sample unit 9 passes through data cache module 2
It is electrically connected with filter module 10 and audio coding module 11, filter module 10 is electrically connected with audio coding module 11, clock
Module 5 sets at least one frequency division module and is electrically connected with data communication bus module 6.
As shown in Fig. 2, a kind of my computational methods of ultrasonic wave coding/decoding system based on wireless acoustic signals, including it is as follows
Step：
The first step builds computing platform, and assistance time reference coordinate points are at least calculated all the way using frequency division module structure, and
Time coordinate point is labeled as t1, t2, t3 ... tn, wherein n >=5, while it includes 32 characters to build（[0-9, a-v]）Audio text
Part compares list, and each character is corresponding with the mapping of specific acoustic wave frequency；
Second step, audio collection are acquired external audio signal using audio signal sample unit, and by filtering mould
Block carries out clutter filtering；
Third walks, audio coding, by filtered audio signal transmission to audio coding module by audio coding module
Coded treatment is carried out, when coding, audio file is divided into several segment files by the reference coordinate point built first with the first step,
And the time of each segment file is recorded respectively, each segment file is then directed to by audio coding module respectively to each section audio text
Part is encoded, wherein every section of sound wave file includes 20 characters in character lists, and when the corresponding pronunciation of each character
Between be not more than 90 milliseconds, wherein 5 characters that are no more than of 20 character most leading portions are start information mark point, most back segment does not surpass
It is termination message mark point to cross 5 each characters, and intermediate several characters are then to pass through audio coding module in the carrying of sound wave information
Corresponding 20 characters of sound wave file are compiled into machine code to be transmitted；
4th step generates audio, and the audio file for receiving by coding transmission is solved by audio coding module
Machine code audio file when decoding, is converted to corresponding 20 character files of sound wave file by code first, then according to character text
The corresponding frequency of part generates pure tone frequency file
In the present embodiment, the third step and the 4th step in machine code be binary machine code, 8 system Doraemons and
Any one or a few of hexadecimal machine code is used in mixed way.
In the present embodiment, in the 4th step produce pure tone frequency file when, production file type be all-wave wave just
String file, in advance all-wave sine wave file, delay all-wave sine wave file, full-wave rectification be averaged half-sine wave file and half-wave it is whole
Any one in levelling half all-wave sine wave file.
The configuration of the present invention is simple, operation high degree of automation, operate flexible and convenient, on the one hand can effectively improve audio signal
On the other hand the working efficiency and the accuracy that encode operation can effectively improve the efficiency of audio decoder operation, sound-reducing
Accuracy, while audio file output form can be adjusted flexibly according to actual needs when carrying out sound-reducing, to have
The working efficiency and quality of the encoding and decoding operation of the raising audio file of effect.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (1)
1. a kind of ultrasonic wave coding/decoding system based on wireless acoustic signals, it is characterised in that：It is described to be based on wireless acoustic signals
Ultrasonic wave coding/decoding system include data processing module, data cache module, network communication module, address coding module, when
Clock module, data communication bus module, drive module, manipulation unit, audio signal sample unit, filter module and audio coding
Module, the data communication bus module respectively with data cache module, network communication module, address coding module, clock
Module, drive module, filter module and the connection of audio coding modular electrical, the data cache module is separately and data processing module
Electrical connection, the drive module are separately electrically connected with manipulation unit, audio signal sample unit respectively, audio letter
Number collecting unit is connect by data cache module with filter module and audio coding modular electrical, the filter module and sound
Frequency coding module is electrically connected, and the clock module sets at least one frequency division module and connect with data communication bus modular electrical；
Also included computational methods, include the following steps：
The first step builds computing platform, and assistance time reference coordinate points, and time are at least calculated all the way using frequency division module structure
Coordinate points are labeled as t1, t2, t3 ... tn, wherein n >=5, while building the audio file control comprising 32 characters [0-9, a-v]
List, and each character is corresponding with the mapping of specific acoustic wave frequency；
Second step, audio collection are acquired external audio signal using audio signal sample unit, and by filter module into
Row clutter filters；
Third walks, and audio coding is carried out filtered audio signal transmission to audio coding module by audio coding module
When coding, several segment files are divided into first with the reference coordinate point of first step structure by coded treatment for audio file, and point
The other time to each segment file records, then be directed to each segment file by audio coding module respectively to each section audio file into
Row coding, wherein every section of sound wave file includes 20 characters in character lists, and the corresponding tone period of each character is not
More than 90 milliseconds, wherein 5 characters that are no more than of 20 character most leading portions are start information mark point, most back segment is no more than 5
A character is termination message mark point, and intermediate several characters are the carrying of sound wave information, then by audio coding module by sound
Corresponding 20 characters of wave file are compiled into machine code and are transmitted；
4th step generates audio, and the audio file for receiving by coding transmission is decoded by audio coding module, solves
When code, machine code audio file is converted into corresponding 20 character files of sound wave file first, then according to character file pair
The frequency answered generates pure tone frequency file, it is binary machine code that the third, which is walked with the machine code in the 4th step,
Any one or a few of octal system machine code and hexadecimal machine code are used in mixed way, and sine wave is generated in the 4th step
When audio file, generation file type is all-wave sine wave file, in advance all-wave sine wave file, delay all-wave sine wave text
Any one that part, full-wave rectification are averaged half-sine wave file and halfwave rectifier is averaged in half all-wave sine wave file.
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| US5699481A (en) * | 1995-05-18 | 1997-12-16 | Rockwell International Corporation | Timing recovery scheme for packet speech in multiplexing environment of voice with data applications |
| EP1501284A2 (en) * | 2003-03-04 | 2005-01-26 | Broadcom Corporation | Apparatus, system and methods for providing television functionality on a chip |
| CN103023580A (en) * | 2012-12-06 | 2013-04-03 | 深圳市创想天空科技有限公司 | Method for achieving data transmission through voice |
| CN104809817A (en) * | 2015-05-07 | 2015-07-29 | 章玺 | Intelligent express delivery box system with acoustic wave payment module |
| CN105453025A (en) * | 2013-07-31 | 2016-03-30 | 谷歌公司 | Visual confirmation for a recognized voice-initiated action |
| CN106411417A (en) * | 2016-06-24 | 2017-02-15 | 南京紫米网络科技有限公司 | Ultrasonic coding and decoding system based on jitter sound wave signals |
-
2016
- 2016-06-28 CN CN201610477711.7A patent/CN105933073B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5699481A (en) * | 1995-05-18 | 1997-12-16 | Rockwell International Corporation | Timing recovery scheme for packet speech in multiplexing environment of voice with data applications |
| EP1501284A2 (en) * | 2003-03-04 | 2005-01-26 | Broadcom Corporation | Apparatus, system and methods for providing television functionality on a chip |
| CN103023580A (en) * | 2012-12-06 | 2013-04-03 | 深圳市创想天空科技有限公司 | Method for achieving data transmission through voice |
| CN105453025A (en) * | 2013-07-31 | 2016-03-30 | 谷歌公司 | Visual confirmation for a recognized voice-initiated action |
| CN104809817A (en) * | 2015-05-07 | 2015-07-29 | 章玺 | Intelligent express delivery box system with acoustic wave payment module |
| CN106411417A (en) * | 2016-06-24 | 2017-02-15 | 南京紫米网络科技有限公司 | Ultrasonic coding and decoding system based on jitter sound wave signals |
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