CN106301672A - Promote audio transmission system and the data processing method thereof of data correctness - Google Patents
Promote audio transmission system and the data processing method thereof of data correctness Download PDFInfo
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- H—ELECTRICITY
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- 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
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Abstract
The present invention provides a kind of audio transmission system promoting data correctness and data processing method thereof, and it sends sound wave by a first device and is received immediately to process by one second device；Wherein, after the information read is converted to a numerical data by this first device, this numerical data is arranged as a matrix, and perform one error correction coding algorithm make the continuous data in this matrix be re-coded arrangement, to produce character sequences data, play out after its modulation again, the sound wave received is demodulated becoming and obtaining this character sequences data by this second device, to perform an error correction correspondence decoding algorithm to obtain correct information, thereby lifting obtains the correctness of data, reach to solve seriality numerical data and cause the purpose of the problem that cannot correct because of the wrongest in transmitting procedure.
Description
Technical field
The present invention about a kind of audio transmission system, a kind of audio transmission system promoting data correctness and
Data processing method.
Background technology
Science and technology is maked rapid progress, transmission skill information be transmitted by 3G or Wi-Fi of mobile device, received
The most suitable common of art, and the most more have the technology (as ultrasound is delivered a letter technology) utilizing sound to transmit information,
Such as transmit URL information, as long as user holds mobile phone by TV, just can play relevant information, or see
Just can receive related introduction, or the information of purchase to concert film, retail shop can also go out some electronic offers
Certificates etc., its application is the most extensive.Delivering a letter for technology with current ultrasound, it is typically with mode of frequency regulation, i.e.
The height utilizing frequency represents " 0 " or " 1 " of bit value, and only mode of frequency regulation exists the shortcoming that transfer rate is slower,
When the change of frequency is the most intensive, sound wave transmits in atmosphere can be affected by propagation rate inequality, and causes not
The sound wave of same frequency arrives at means for receiving simultaneously so that the change of frequency of sound wave cannot be by correct identification, institute
With necessary less efficient ground certain interval of time conversion frequency again.
Prior art and for example has a kind of system utilizing transfer voice data and control command, refers to Fig. 8 institute
Showing, it includes teller machines 91, radio equipment 92, and user operates on this teller machines 91 and inputs word
String or instruction etc., and be converted to the sound shelves that can play, sound wave is transferred to this radio equipment 92 by air,
And sound wave is just processed after receiving sound wave by this radio equipment 92, to obtain the word string in sound wave or instruction, and root
Automatically perform corresponding action according to identification word string or the content of instruction, allow the user can be merely with teller machines
91 send sound, just can control the service required for corresponding radio equipment 92 acquirement.As in prior art
Teller machines 91 how the word string that user inputs is converted to sound wave and transmits, and by corresponding radio equipment
92 receive, as shown in Figures 9 and 10, perform by this teller machines 91, this radio equipment 92 the most respectively below
Step: this teller machines 91 accepts the word string of a user input, and the word string of user input is converted into binary system
Data, and by binary data by a phase offset modulation (Phase Shift Keying, PSK) by two
The data-modulated of system is sound shelves；Whether compressed according to the mode decision of systemic presupposition by this teller machines 91 again
These sound shelves, the most then carry out destructiveness/Lossless Compression, and play by the archives after compression, if it is not, the most straight
Connect and these sound shelves are play；When this radio equipment 92 receives one group of sound audio number, this group sound audio number is solved modulation,
And be converted to a word string, further according to the content of this word string with the subsequent action taked of decision.
According to the principle of phase offset modulation tech, it mainly uses the change of acoustic phase to represent " 0 " of bit value
Or " 1 ", it is not required to conversion frequency when therefore sending, can significantly lower interval time when transmitting different bit, with
Improve in prior art must the problem of less efficient ground certain interval of time conversion frequency again, but phase offset modulation
The initial design object of technology is based on electromagnetic transmission, and electromagnetic wave propagation speed is the light velocity, therefore at air
The phase pushing figure produced after middle transmission one segment distance is minimum, and reviewing sound wave is to propagate, with the light velocity with velocity of sound in atmosphere
Compare, velocity of sound is slow about 880,000 times, and biography can be caused because of the difference of Media density when sound wave transmits in media as well
Broadcast the change of speed, after transmitting a segment distance the most in atmosphere, it will cause the increasing of phase pushing figure, if these receipts
Sound equipment 92 is directly understood, and can read substantial amounts of continuous mistake bit, though therefore phase offset modulation tech
The problem not having conversion frequency, but the correctness of its data but reduces.
From above-mentioned prior art, general transmission system when design in order to improve the correctness of data transmission, generally
The communication quality of data transmission channel can be improved, the probability of transmitting fault information is reduced, but sound wave passes in atmosphere
Pass and belong to the unstable passage that signal to noise ratio (Signal to Noise Ratio, SNR) is low, and by current existing skill
Data need to be transmitted after phase offset modulation by the mode of sonic transmissions in art prior to teller machines 91 again,
The sound wave transmitted will make the phase anomaly of audio frequency change because of medium or the difference of distance based on physical characteristic, and produces
Raw a large amount of successional error bit metadata, and cannot be carried out revising, cause this radio equipment 92 receiving sound
After ripple, interpretation cannot go out correct information and be only capable of selecting this pen data abandons new transmission of laying equal stress on completely；Furthermore,
In order to promote the efficiency of sonic transmissions, when using phase offset modulation tech, sound wave often produces a large amount of in air transmission
Successional error bit metadata, does not simply fails to obtain correct data and more cannot be carried out revising, to such an extent as to system effectiveness
The best.Therefore, for above-mentioned prior art, really need to be proposed the necessity of more preferable solution.
Summary of the invention
Because above-mentioned the deficiencies in the prior art, main purpose of the present invention provides a kind of audio frequency promoting data correctness to pass
Communication system and data processing method thereof, it is used for sending the device and corresponding of sound for receiving sound by one
Device carries out transfer voice, by information to be transmitted through specific mode again layout, break up after, to avoid
During transmission, the wrong bit after causing reception because of paroxysmal continuous mistake is too concentrated, to such an extent as to cannot school
Just, therefore energy lifting obtains the correctness of hiding data, and solves seriality numerical data in transmitting procedure because of the most wrong
The problem by mistake causing correcting.
The technical way that above-mentioned purpose to be reached is taked makes the audio transmission system of aforementioned lifting data correctness
Data processing method, mainly by a first device to the one second device transmission sound wave matched, and by this first device
Execution the following step:
Accept an information, and convert this information into a numerical data；
This numerical data is arranged as a matrix；
Perform an error correction coding algorithm so that the continuous data in this matrix is re-coded arrangement to produce one
Character sequences data；
By these character sequences data plus a header information to constitute bit arrangement data, and this bit is arranged data
It is tuned as one group of sound wave；
This group sound wave is play and receives for this second device.
Above-mentioned steps receives with this first device sound wave and by this second device, when this first device receives this information,
And convert this information into this numerical data, then this numerical data is arranged as this matrix, perform via this first device
This error correction coding algorithm so that the continuous data in this matrix is re-coded arrangement and produces this character sequences
Data, and this first device again by these character sequences data plus this header information with constitute this bit arrangement data, and
This bit arrangement data are tuned as one group of sound wave receive for this second device；When this second device receives this group sound wave
After, only need to be filtered, solve modulation and obtain this bit arrangement data, by the mark in this bit arrangement data
Header picks out this character sequences data, and these character sequences data perform an error correction correspondence decoding algorithm
To obtain correct information, thereby lifting obtains the correctness of hiding data, reaches to solve seriality numerical data and is passing
The purpose of the problem that cannot correct is caused because of the wrongest during defeated.
The another technical way that above-mentioned purpose to be reached is taked makes the audio transmission system of aforementioned lifting data correctness
System includes:
One first device, it includes a first processor, an audio output unit and an encoder, this first processor
It is connected with this audio output unit, this encoder respectively, and by this audio output unit, audio frequency is exported；
One second device, matches with this first device, and this second device includes that one second processor, an audio frequency receive
Unit and a decoder, this second processor receives unit with this audio frequency respectively, this decoder is connected, and this audio frequency receives
Unit is in order to receive audio frequency, and is sent to this second processor, this second processor perform Audio Processing and solve modulation；
Wherein, when the first processor of this first device reads an information, then this information is made to be converted to a numerical data,
And this numerical data is arranged as a matrix, then performed an error correction coding algorithm by this encoder so that this square
Continuous data in Zhen is re-coded and arranges to produce character sequences data, and this first processor is again by this character sequence
Column data arranges data plus a header information to constitute a bit, and this bit arrangement data are tuned as one group of sound
Ripple, is play this group sound wave by this audio output unit and receives for the second device.
From above-mentioned structure, the present invention promotes the audio transmission system of data correctness first by this first device
Audio frequency after processor, this encoder will process plays one group of sound wave containing information by its audio output unit, and
Received unit by the audio frequency of this second device and receive this group sound wave, then this group sound wave is converted into audio frequency be sent to this second
Processor, performs follow-up corresponding required Audio Processing or data identification via this second processor, this decoder；
Wherein this first device processes the mode of audio frequency, is to read this information by first processor, makes this information be converted to one
Numerical data, and this numerical data is arranged in matrix format, then performed this error correction coding calculation by this encoder
Method so that the continuous data in this matrix is passed through and recompiled arrangement and produce this character sequences data, this first process
These character sequences data are arranged data plus header information to constitute this bit by device again, and this bit arrangement data are adjusted
Become one group of sound wave, this audio output unit play this group sound wave and receive for the second device, when the sound of this second device
After frequency reception unit receives this group sound wave, it is filtered by this second processor, solves modulation and obtain this bit
Arrangement data, i.e. can pick out these character sequences data by the header information in this bit arrangement data, and with this
Decoder performs an error correction correspondence decoding algorithm to obtain correct information to these character sequences data, thereby carries
Rise the correctness obtaining hiding data, reach to solve seriality numerical data and cause because of the wrongest in transmitting procedure
The purpose of the problem that cannot correct.
Accompanying drawing explanation
Fig. 1 is the audio transmission system schematic diagram of a preferred embodiment of the present invention.
Fig. 2 is the data structure schematic diagram of the information coding permutations of a preferred embodiment of the present invention.
Fig. 3 is the first device data processing method flow chart of a preferred embodiment of the present invention.
Fig. 4 is the first device error correction coding algorithm flow chart of a preferred embodiment of the present invention.
Fig. 5 is the second device data processing method flow chart of a preferred embodiment of the present invention.
Fig. 6 is the second device solution modulation and the information flow path switch figure of a preferred embodiment of the present invention.
Fig. 7 is the second device error correction correspondence decoding algorithm flow chart of a preferred embodiment of the present invention.
Fig. 8 is audio transmission system block chart known to.
Fig. 9 is the broadcasting sound flow chart of teller machines known to.
Figure 10 is the reception sound flow chart of radio equipment known to.
Drawing reference numeral
10 first device 11 first processors
12 audio output unit 13 encoders
20 second device 21 second processors
22 audio frequency receive unit 23 decoder
91 teller machines 92 radio equipments
Detailed description of the invention
Promote the preferred embodiment of the audio transmission system of audible recognition rate about the present invention, refer to shown in Fig. 1, its
Mainly in a medium (such as air), transmitted one group sound wave to one second device 20 by a first device 10, and this first
Device 10 matches with this second device 20, and wherein this sound wave (sound) is a continuously signal in atmosphere,
Can be described as sound audio number (Audio Signal, audio frequency), also refer to the signal of the various sound heard by human ear.This
In embodiment, this first device 10, this second device 20 can be respectively a mobile device, an intelligent apparatus or a computer
The electronic installations such as equipment.
This first device 10 includes first processor 11, audio output unit 12, encoder 13 and an input
Unit (not shown), this first processor 11 respectively with this audio output unit 12, this encoder 13 and this input
Unit connect, this first processor 11 can built-in or presupposed information, or by this input block input information, by this
The first processor 11 of first device 10 reads an information, and this information is carried out information conversion, makes this information be converted to
One numerical data, and in this numerical data, add a check code and be arranged as a matrix, then performed by this encoder 13
One error correction coding algorithm so that the continuous data in this matrix is re-coded arrangement to produce a character sequences
Data, these character sequences data are arranged data plus a header information to constitute a bit by this first processor 11 again,
After this first processor 11 reads this bit arrangement data, just it is tuned as one group of sound wave, and is exported by this audio frequency
Unit 12 is play this group sound wave and transmits in air, to contain the sound wave output of information by one for this second device 20
Receive.
This second device 20 includes that one second processor 21, audio frequency receives unit 22 and a decoder 23, and this is at second
Reason device 21 receives unit 22, this decoder 23 with this audio frequency respectively and is connected, this audio frequency receive unit 22 in order to receive this
The sound that one device 10 is played back, and by receive this group sound wave be sent to this second processor 21, by this second
Processor 21 performs Audio Processing and solves modulation；After this second device 20 receives the sound wave that this group contains information, the most logical
Cross the second processor 21 this group sound wave to be filtered, solves modulation and obtain the aforementioned bit number of permutations containing header information
According to, according to the header information in this bit arrangement data to pick out this character sequences data, and with this decoder 23
These character sequences data perform an error correction correspondence decoding algorithm, and this error correction correspondence decoding algorithm is with front
State error correction coding algorithm to match, therefore, it is possible to accurately obtain correct information, owing to sound wave is in the mistake of transmission
Journey is vulnerable to various impact, is susceptible to a large amount of successional error in data and causes the problem that cannot correct, therefore
This error correction coding algorithm is performed so that continuous data recompiles by the encoder 13 of above-mentioned first device 10
Data arrangement is broken up by arrangement in specific mathematical mode, it is to avoid paroxysmal the caused reception of continuous mistake in transmitting procedure
After wrong bit too concentrate and cannot correct, then performed, by the decoder 23 of above-mentioned second device 20, the mistake that matches
The corresponding decoding algorithm of corrigendum, can not only obtain correct information, more can increase degree of accuracy and the usefulness of system by mistake.
For this first device 10 in explanation present pre-ferred embodiments in the process side of the data structure of information coding permutations
Formula, refers to shown in Fig. 2, is wherein read this information by the first processor 11 of this first device 10, in the present embodiment,
This information can be an input word string, when the information of carrying out is changed, is first converted to by this input word string corresponding A SCII code
This numerical data S, this numerical data S includes one group of binary system bit value, adds above-mentioned verification in this numerical data S
Code is also rotated and is arranged as matrix S0 (" S0:[0] [1] [2] [3] ... "), recycle this encoder 13 to square
Battle array S0 performs above-mentioned error correction coding algorithm, and the matrix format in postrotational this matrix S0 is carried out a transposition fortune
Calculate, will transverse axis and the longitudinal axis of matrix format swap to constitute a transposed matrix S1
(" S1:[0] [1] [2] [3] ... "), then the data of this matrix S0 and this transposed matrix S1 are carried out successional
Again interleaved code arrangement, to produce character sequences data S2
(" S0 [0], S1 [0], S0 [1], S1 [1], S0 [2], S1 [2] ... "), finally these character sequences data S2 are added
This header information is to constitute bit arrangement data S3, and this bit arrangement data is tuned as one group of sound wave, to play
To this second device 20.
When the second processor 21 of this second device 20 receives this group sound wave, and before being filtered, solving modulation and obtain
State bit arrangement data S3 containing header information, read this character according to the header information in this bit arrangement data S3
The content of sequence data S3, and perform this corresponding error correction correspondence decoding algorithm with this decoder 23, to reading
The character sequences data S3 content got carries out disassembling separation, by the above-mentioned matrix S0 in this character sequences data S3 content
And this transposed matrix S1 carries out reducing the data to obtain mistake bit value, and utilize dendrogram method (trellis
Diagram, hedge figure) obtain all possible paths, then take a smallest hamming distance (Hamming distance)
Path, i.e. obtain the correct information content of maximum of probability.In the present embodiment, this second processor 21 is to this group sound wave
It is filtered, solves modulation and obtain the aforementioned character sequences data with time state characteristic, wherein this second processor
21 further by a band filter, a fast fourier transform (Fast Fourier Transform, FFT)
Respectively this group sound wave is filtered, solves modulation.
In sum, the application mode that the present invention is main is first by first device 10, a word string to be converted to binary system bit
Value, subsequently, utilizes forward error corrigendum (Forward Error Correction, FEC) by binary system bit value
Technology encode, and in coding after just carry out modulation, after modulation completes, then by the sound after modulation
Frequency number is sent to the second device 20；When the second device 20 receives sound audio number, the most further sound audio number is solved
Modulation, and be decoded again after solving modulation, the data after decoding are then converted into a word string.Pass through forward error
When corrigendum technology makes sonic transmissions, the bit Data of a large amount of mistakes can be corrected for correct.Should be noted that,
Forward error corrigendum technology is utilized in data adding redundancy bit in the specific format so that make mistakes in transmitting procedure
The common name of a kind of technology that data can be corrected, the most more typically comprises Reed-Solomon code (Reed-solomon
Code), convolution code (Convolutional Code), acceleration code (TurboCode) etc..
Further, since general communication system when design in order to improve the correctness of data transmission, generally need to improve data
The communication quality of transmission channel, so that the probability of transmitting fault information is reduced, but, owing to sound wave transmits in atmosphere
Belong to the unstable passage that signal to noise ratio (Signal to Noise Ratio, SNR) is low, therefore, in the present embodiment
The wrong bit utilizing the coding techniques of error correction transmitting procedure to be caused is revised, and this optimal error correction
Coding algorithm and this error correction correspondence decoding algorithm of matching, its be respectively a convolution coding (also known as
Convolutional Code, convolution code) and the decoding of Witter ratio (Viterbi) algorithm.
Further, this error correction coding algorithm and this error correction correspondence decoding algorithm matched, more may be used
It is respectively a trellis coding and a Witter than algorithm decoding, acceleration code (TurboCode) coding and a Witter ratio
Algorithm decoding, a Coded by Linear Codes and a Witter decode than algorithm.
By the explanation of the preferred embodiment of the invention described above, the audio transmission system of lifting data correctness can be summarized
Data processing method, it mainly transmits sound wave by this first device 10 to this second device 20 matched, as Fig. 2,
Shown in Fig. 3, and performed the following step by this first device 10:
Accepting an information (S31), in the present embodiment, this information can be a word string, and converts this information into a numeral number
According to S (S32), this numerical data S includes one group of binary system bit value；
This numerical data is arranged as a matrix S0 (S33), the present embodiment can add in this numerical data a verification
Code is also arranged as this matrix S0 (S33)；
Perform error correction coding algorithm (S34) so that the continuous data in this matrix S0 is re-coded arrangement
To produce character sequences data S2；
By these character sequences data S2 plus a header information to constitute bit arrangement data S3, and this bit is arranged
Data S3 are tuned as one group of sound wave (S35)；
This group sound wave is play and receives for this second device 20, or store this group sound wave (S36)；In the present embodiment
Further this group sound wave is compressed；
Judge whether to produce next group sound wave (S37), the most then return to aforementioned " accepting an information (S31) " step
Suddenly.
By above-mentioned steps, play sound with this first device 10 to this second device 20, when this first device 10 accepts
Numerical data S it is converted into again after this information, and in time performing this error correction coding algorithm, in matrix S0
Continuous data be re-coded arrangement and produce this character sequences data S2, in the present embodiment when said method perform
To " performing error correction coding algorithm (S34) so that the continuous data in this matrix S0 is re-coded arrangement
To produce character sequences data S2 " step time, as shown in Figure 2, Figure 4 shows, the method further includes following steps:
Above-mentioned numerical data S containing check code rotates with a fixed-direction becomes this matrix S0 (S341)；
This matrix S0 is changed, to produce this transposed matrix S1 (S342)；
With the data of this matrix S0 Yu this transposed matrix S1, carry out successional interleaved code again and be arranged in this character sequence
Column data S2, in the present embodiment, these character sequences data S2 are one-dimensional array S2 (S343)；And
Continue execution aforementioned " by these character sequences data S2 plus a header information with constitute one bit arrangement data S3,
And this bit arrangement data S3 are tuned as one group of sound wave (S35)；" step and " this group sound wave is play for this
Two devices 20 receives, or stores this group sound wave (S36) " step.
By these character sequences data S2 are added that this header information is to constitute this position in first device 10 by above-mentioned steps
Identical permutation data S3, and this bit arrangement data S3 are tuned as one group of sound wave for this second device reception 20, Yu Ben
In embodiment when this group sound wave is play and supplied this second device 20 to receive by this first device 10, as it is shown in figure 5, also
The following step is performed further by this second device 20:
Accept one group of sound wave (S41)；
Being filtered and change (S42) by this group sound wave, in the present embodiment, this this second device 20 passes through one further
Band filter, a fast fourier transform (Fast Fourier Transform, FFT) are with respectively to this group sound
Ripple is filtered, solves modulation；
Sound characteristic solution after conversion is tuned as a numerical data (S43)；
This character sequences data S2 content is read according to the header information in this bit arrangement data S3, and to this character sequence
Column data S2 performs an error correction correspondence decoding algorithm, to obtain correct information (S44)；
Convert that information into a word string and be back to near-end or far-end (S45), it may be judged whether continuing to next group sound
Ripple (S46), the most then return to aforementioned " accepting one group of sound wave (S41) " step.
Furthermore, when above-mentioned steps performs to " reading this character sequences according to the header information in this bit arrangement data S3
Data S2 content, and these character sequences data S2 are performed an error correction correspondence decoding algorithm, correct to obtain
Information (S44) " step time, as shown in Figure 6, and performed the following step further by this second device 20:
Read this group sound wave converted after sound characteristic (S441)；
It is demodulated this sound characteristic becoming (S442), to produce this numerical data；
Determine whether to read a wherein header information (S443) according to this numerical data；
The most then read this character sequences data S2 content (S444)；
These character sequences data S2 are performed this error correction correspondence decoding algorithm, to obtain correct information
(S445)；
Again judge to calculate this numerical data S with a check code the most correct (S446)；
The most then perform aforementioned " convert that information into a word string and be back to near-end or far-end (S45) " step；
When perform aforementioned " determining whether to read a wherein header information (S443) according to this numerical data " step,
Or when performing aforementioned " again judging to calculate this numerical data S with a check code the most correct (S446) " step,
If judged result is no, then changes the scope (S447) reading this group sound wave, and return to " read this group sound wave through turning
Sound characteristic (S441) after changing " step.
Further, perform to " these character sequences data S2 being performed this mistake more when above-mentioned steps in the present embodiment
Positive corresponding decoding algorithm, to obtain correct information (S445) " step time, as shown in Fig. 2, Fig. 7, the method
Further include the following step:
Take out matrix S0 corresponding in the data content of these character sequences data S2 and transposed matrix S1 (S4451)；
This matrix S0, this transposed matrix S1 are carried out reduction arrangement (S4452)；
Matrix S0 after sequentially comparison reduction arrangement and the data content of transposed matrix S1, to obtain the number of mistake bit value
According to (S4453)；
Utilize this Witter ratio (Viterbi) algorithm decoding, and obtain correct numerical data S content (S4454)；
The execution that continues aforementioned " again judging to calculate this numerical data S with a check code the most correct (S446) " step.
The present invention is by error correction coding algorithm and this corresponding error correction correspondence decoding algorithm, according to taking
The data obtaining wrong bit value calculate shortest path, to obtain the correct information content of maximum of probability, and based on mesh
In front prior art, the operational capability of general chip for cell phone still cannot be carried out the computing of too complex, therefore with forward error
The technology of corrigendum encodes, then is decoded than algorithm with corresponding Witter, a large amount of mistakes when making sonic transmissions
Bit Data can be corrected, therefore when really solving to use phase offset modulation tech in the prior art, sound wave exists
Air transmission often produces a large amount of successional error bit metadata and causes the problem that cannot correct, and more can promote
System obtains correctness and the efficiency of hiding data.
Claims (12)
1. the data processing method of the audio transmission system promoting data correctness, it is characterised in that described place
Reason method is transmitted sound wave by a first device to one second device matched, and is performed following step by described first device
Rapid:
Accept an information, and convert that information to a numerical data；
Described numerical data is arranged as a matrix；
Perform an error correction coding algorithm so that the continuous data in described matrix is re-coded arrangement to produce
One character sequences data；
By described character sequences data plus a header information to constitute bit arrangement data, and described bit is arranged
Data-modulated is one group of sound wave；
Described group of sound wave is play and receives for described second device.
The data processing method of the audio transmission system of lifting data correctness the most according to claim 1, its
It is characterised by, when described step performs to described numerical data is arranged as a matrix step, performs following step further
Rapid:
In described numerical data, add a check code and be arranged as described matrix.
The data processing method of the audio transmission system of lifting data correctness the most according to claim 1, its
Being characterised by, described method farther includes the following step:
Described group of sound wave is compressed, and judges whether to produce next group sound wave, the most then return to aforementioned acceptance
One information Step.
The data processing method of the audio transmission system of lifting data correctness the most according to claim 1, its
Being characterised by, described information can be a word string, converts that information to described numerical data, described digital data packet
Include one group of binary system bit value.
The data processing method of the audio transmission system of lifting data correctness the most according to claim 1, its
It is characterised by, when described method performs to performing an error correction coding algorithm so that the consecutive numbers in described matrix
According to being re-coded arrangement to produce a character sequences data step, described method further includes following steps:
Described numerical data rotates with a fixed-direction becomes described matrix；
By described matrix conversion to produce described transposed matrix；
With the data of described matrix Yu described transposed matrix, carry out being staggered to described character sequences data；
The execution that continues is aforementioned arranges data plus a header information to constitute a bit by described character sequences data, and will
Described bit arrangement data are tuned as one group of sound wave step.
The data processing method of the audio transmission system of lifting data correctness the most according to claim 5, its
It is characterised by that described matrix and the data of described transposed matrix carry out being staggered to described character sequences data, institute
Stating character sequences data is one-dimensional array.
The data of the audio transmission system of lifting data correctness the most according to any one of claim 1 to 6
Processing method, it is characterised in that described group of sound wave play and supplies institute when performing to described first device in described method
State the second device receiving step, and performed the following step by described second device further:
Accept one group of sound wave；
Described group of sound wave is changed；
Sound characteristic solution after conversion is tuned as a numerical data；
Read described character sequences data content according to header information, and perform an error correction correspondence decoding algorithm,
To obtain correct information.
The data processing method of the audio transmission system of lifting data correctness the most according to claim 7, its
It is characterised by, when described step performs to described group of sound wave is carried out switch process, and comprises the following steps: further
Described group of sound wave is filtered and changes.
The data processing method of the audio transmission system of lifting data correctness the most according to claim 7, its
Being characterised by, described method further includes the following step:
Convert this information into a word string and be back near/far-end；
Judge whether to continue to next group sound wave, the most then return to one group of sound wave step of aforementioned acceptance.
The data processing method of the audio transmission system of lifting data correctness the most according to claim 9, its
Being characterised by, when described step performs to according to header information to read described character sequences data content, and it is wrong to perform one
The corresponding decoding algorithm of corrigendum by mistake, to obtain correct information Step, and performs the following step further:
Read the sound characteristic of described group of sound wave；
It is demodulated described sound characteristic becoming to produce described numerical data；
Determine whether to read a wherein header information according to described numerical data；
The most then read described character sequences data content；
Perform described error correction correspondence decoding algorithm, to obtain correct information；
Again judge to calculate described numerical data the most correct；
The most then perform aforementioned convert this information into a word string and be back to near-end or far-end step；
When performing aforementioned to determine whether to read a wherein header information step or when holding according to described numerical data
Row is aforementioned when again judging to calculate described numerical data whether correct step, if judged result is no, then changes reading institute
State the scope of group sound wave, and return to read the sound characteristic step of described group of sound wave.
The data processing method of the audio transmission system of 11. lifting data correctness according to claim 10,
It is characterized in that, when described step performs to performing described error correction correspondence decoding algorithm, to obtain correct letter
Breath step, described method further includes the following step:
Take out the matrix in the data content of described character sequences data and transposed matrix；
Matrix after sequentially comparison reduction arrangement and transposed matrix content, to obtain error bit metadata；
Utilize described Witter than algorithm decoding to obtain correct digital data content；
The execution that continues is aforementioned to be judged to calculate the most correct step of described numerical data again.
12. 1 kinds of audio transmission systems promoting data correctness, it is characterised in that described transmission system includes:
One first device, it includes a first processor, an audio output unit and an encoder, described first process
Device is connected with described audio output unit, described encoder respectively, and is exported by audio frequency by described audio output unit；
One second device, matches with described first device, and described second device includes one second processor, an audio frequency
Receiving unit and a decoder, described second processor receives unit with described audio frequency respectively, described decoder is connected,
Described audio frequency reception unit is in order to receive audio frequency, and is sent to described second processor, described second processor perform
Audio Processing and solution modulation；
Wherein, described first device perform correct according to the lifting data according to any one of claim 1 to 11
The data processing method of the audio transmission system of property；Performed to appoint according in claim 7 to 11 by described second device
The data processing method of one described audio transmission system promoting data correctness.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999062181A1 (en) * | 1998-05-27 | 1999-12-02 | Ntt Mobile Communications Network Inc. | Error protecting method and error protective device |
| US6357029B1 (en) * | 1999-01-27 | 2002-03-12 | Agere Systems Guardian Corp. | Joint multiple program error concealment for digital audio broadcasting and other applications |
| CN1516459A (en) * | 2003-01-09 | 2004-07-28 | 北京泰美世纪科技有限公司 | Transferring ssytem of signal communication in digital multimedia broadcast system and mode |
| US7225388B2 (en) * | 2001-03-14 | 2007-05-29 | Matsushita Electric Industrial Co., Ltd. | Error correction encoding and decoding methods and apparatuses for DVI audio data |
| CN202197304U (en) * | 2011-09-16 | 2012-04-18 | 成都摩宝网络科技有限公司 | Audio data transmission system |
-
2015
- 2015-05-19 CN CN201510256328.4A patent/CN106301672B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999062181A1 (en) * | 1998-05-27 | 1999-12-02 | Ntt Mobile Communications Network Inc. | Error protecting method and error protective device |
| US6357029B1 (en) * | 1999-01-27 | 2002-03-12 | Agere Systems Guardian Corp. | Joint multiple program error concealment for digital audio broadcasting and other applications |
| US7225388B2 (en) * | 2001-03-14 | 2007-05-29 | Matsushita Electric Industrial Co., Ltd. | Error correction encoding and decoding methods and apparatuses for DVI audio data |
| CN1516459A (en) * | 2003-01-09 | 2004-07-28 | 北京泰美世纪科技有限公司 | Transferring ssytem of signal communication in digital multimedia broadcast system and mode |
| CN202197304U (en) * | 2011-09-16 | 2012-04-18 | 成都摩宝网络科技有限公司 | Audio data transmission system |
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