CN113438595B - Audio processing system - Google Patents

Audio processing system Download PDF

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Publication number
CN113438595B
CN113438595B CN202110706851.8A CN202110706851A CN113438595B CN 113438595 B CN113438595 B CN 113438595B CN 202110706851 A CN202110706851 A CN 202110706851A CN 113438595 B CN113438595 B CN 113438595B
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module
unit
repair
output
extraction
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CN113438595A (en
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张玮
蒋春华
李冬冬
杨泽
黄小哲
刘家利
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Chongqing Huaweixu Technology Co ltd
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Shenzhen Ruiyang Acoustic Design And Development Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
    • G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/307—Frequency adjustment, e.g. tone control

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

The invention belongs to the field of audio processing, in particular to an audio processing system, which aims at the problem that the prior surround sound technology which can only be output in a mixed way and can not display multiple channels is provided with a separation module, a matrix processing module, a recombination module, a decoding module, a signal restoration module, an output module, a first extraction module, a matching module, a judgment module, a restoration module, a second extraction module, a calculation module, a classification storage module, a memory module, a setting module and a warning module, wherein the separation module is connected with the matrix processing module, the matrix processing module is connected with the recombination module, the recombination module is connected with the decoding module, the decoding module is connected with the signal restoration module, and the signal restoration module is connected with the output module, and the feeling of visiting the scene at the movie stage when the movie is played.

Description

Audio processing system
Technical Field
The invention relates to the technical field of audio processing, in particular to an audio processing system.
Background
The audio signal output of the common automobile is directly amplified and output through an integrated chip inside the automobile, and the loudspeaker at each part of the audio signal output does not really exert the characteristics of the audio signal output, such as: bass, midrange, treble, midrange, bass, etc.
In the prior art, automobile audio signals are processed by DSP digital signals, but sound channels cannot be separated through a specific audio algorithm, so that a surround sound technology is realized.
Disclosure of Invention
The invention aims to solve the defects that the prior art only can mix output and cannot display surround sound with multiple channels, and provides an audio processing system.
In order to achieve the purpose, the invention adopts the following technical scheme:
an audio processing system comprises a separation module, a matrix processing module, a recombination module, a decoding module, a signal restoration module, an output module, a first extraction module, a matching module, a judgment module, a restoration module, a second extraction module, a calculation module, a classification storage module, a memory module, a setting module and a warning module, wherein the separation module is connected with the matrix processing module, the matrix processing module is connected with the recombination module, the recombination module is connected with the decoding module, the decoding module is connected with the signal restoration module, the signal restoration module is connected with the output module, the output module is connected with the first extraction module, the first extraction module is connected with the matching module, the matching module is connected with the judgment module, the judgment module is connected with the restoration module, the restoration module is connected with the second extraction module, and the second extraction module is connected with the calculation module, the calculating module is connected with the classified storage module, the classified storage module is connected with the matching module, the matching module is connected with the warning module, the setting module is connected with the output module, the output module is connected with the memory module, and the memory module is connected with the classified storage module.
Preferably, the second extraction module comprises a repair time extraction unit, a repair frequency extraction unit and an identification classification unit, the repair time extraction unit is connected with the repair frequency extraction unit, and the repair frequency extraction unit is connected with the identification classification unit.
Preferably, the classification storage module comprises an audio storage unit, a repair time storage unit and a repair frequency storage unit, the audio storage unit is connected with the repair time storage unit, the repair time storage unit is connected with the repair time storage unit, and the repair time storage unit is connected with the repair frequency storage unit.
Preferably, the first extraction module comprises a tone extraction unit, a tone extraction unit and a sending unit which are sequentially connected, the matching module comprises a temporary storage unit, a matching unit and a comparison unit which are sequentially connected, the setting module comprises a login unit, a verification unit and a setting unit which are sequentially connected, and the warning module comprises a sound-light warning unit and an information warning unit.
Preferably, the separation module is configured to receive L, R the binaural signal for separation, transmit the separated signal to the matrix processing module, and the matrix processing module is configured to perform matrix processing on the separated signal and transmit the processed signal to the recombination module.
Preferably, the recombination module is configured to recombine the received matrix signal, and transmit the recombined matrix signal to the decoding module, the decoding module is configured to decode the signal, and then transmit the decoded signal to the signal restoring module, the signal restoring module is configured to restore the signal, the restored signal is transmitted to the output module, and the output module is configured to perform multi-channel lossless output.
Preferably, the memory module is configured to memorize the timbre and the melody of the output music and transmit the memorized timbre and the melody to the classification storage module, and the classification storage module is configured to store the received data.
Preferably, the setting module is used for setting the use period of the music, after the use period is up, the first extraction module extracts the tone and the melody of the newly played music, transmits the extracted tone and the melody to the matching module, the matching module performs matching in the classified storage module, compares the extracted tone and the melody after the matching is successful, and transmits the comparison result to the judgment module, the judgment module is used for judging whether the tone and the melody in two groups at different periods are consistent, if so, the music can be normally used, and if not, the music can send the repair signal to the repair module.
Preferably, the repair module repairs the tone and the melody of the output music, compares the repaired tone and the melody again, and warns by the warning module when the comparison is inconsistent.
Preferably, the second extraction module is configured to extract the repair time and repair frequency data, transmit the extracted data to the calculation module, and the calculation module is configured to calculate the repair frequency and transmit the extracted and repair frequency data to the classification storage module for storage.
Compared with the prior art, the invention has the beneficial effects that:
receiving L, R dual-channel signals for separation, performing matrix processing on the separated signals, recombining the matrix signals, decoding the recombined signals, performing signal restoration through a characteristic audio algorithm, combining the internal space of the automobile and the loudspeaker configuration, performing multi-channel lossless output, wherein the multi-channel lossless output can be compatible with multi-track digital signals and analog signal input, and decoding-restoring-lossless output;
memorizing the timbre and the temperament of the output music, classifying and storing the memorized audios, setting a use period, extracting the timbre and the temperament of the newly played music after the use period is up, matching the timbre and the temperament with the stored timbre and temperament, comparing after the matching is successful, judging whether the two groups of timbre and the temperament in different periods are consistent, if so, indicating normal use, and if not, indicating repair is needed, repairing the timbre and the temperament of the output music through a repair module, comparing again after repair, and if not, alarming, extracting repair time and repair frequency data, calculating repair frequency, and storing the data of the extracted and repaired frequency so as to know the use condition;
the invention can simultaneously be compatible with digital signals and analog signal stereo for audio signal analysis, and adopts high sampling rate to carry out frequency decomposition on the audio signals, so that various vehicle-mounted loudspeakers really exert the characteristics thereof to output the audio signals, for example: the bass, the middle pitch, the treble, the surround sound and the like comprehensively show sound signals at various parts in the automobile, so that a driver can feel the surround sound of a family movie and a college test when playing music in a narrow space in the automobile and feel the scene of the movie and the college when playing a movie.
Drawings
Fig. 1 is a block diagram of an audio processing system according to the present invention;
FIG. 2 is a block diagram of a second extraction module of the audio processing system according to the present invention;
FIG. 3 is a block diagram of the working principle of the separated memory module of the audio processing system according to the present invention;
FIG. 4 is a block diagram of a first extraction module of the audio processing system according to the present invention;
FIG. 5 is a block diagram of the operation of the matching module of the audio processing system according to the present invention;
FIG. 6 is a block diagram of the operation of the setup module of the audio processing system according to the present invention;
fig. 7 is a functional block diagram of an alert module of an audio processing system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-7, an audio processing system includes a separation module, a matrix processing module, a recombination module, a decoding module, a signal restoring module, an output module, a first extraction module, a matching module, a judgment module, a restoration module, a second extraction module, a calculation module, a classification storage module, a memory module, a setting module, and a warning module, wherein the separation module is connected to the matrix processing module, the matrix processing module is connected to the recombination module, the recombination module is connected to the decoding module, the decoding module is connected to the signal restoring module, the signal restoring module is connected to the output module, the output module is connected to the first extraction module, the first extraction module is connected to the matching module, the matching module is connected to the judgment module, the judgment module is connected to the restoration module, the restoration module is connected to the second extraction module, the second extraction module is connected to the calculation module, and the calculation module is connected to the classification storage module, the classified storage module is connected with the matching module, the matching module is connected with the warning module, the setting module is connected with the output module, the output module is connected with the memory module, and the memory module is connected with the classified storage module.
In the invention, the second extraction module comprises a repair time extraction unit, a repair frequency extraction unit and an identification classification unit, wherein the repair time extraction unit is connected with the repair frequency extraction unit, and the repair frequency extraction unit is connected with the identification classification unit.
In the invention, the classification storage module comprises an audio storage unit, a repair time storage unit and a repair frequency storage unit, wherein the audio storage unit is connected with the repair time storage unit, the repair time storage unit is connected with the repair time storage unit, and the repair time storage unit is connected with the repair frequency storage unit.
In the invention, the first extraction module comprises a tone extraction unit, a tone rhythm extraction unit and a sending unit which are sequentially connected, the matching module comprises a temporary storage unit, a matching unit and a comparison unit which are sequentially connected, the setting module comprises a login unit, a verification unit and a setting unit which are sequentially connected, and the warning module comprises an acousto-optic warning unit and an information warning unit.
In the invention, the separation module is used for receiving L, R binaural signals for separation and transmitting the separated signals to the matrix processing module, and the matrix processing module is used for matrix processing the separated signals and transmitting the processed signals to the recombination module.
In the invention, a recombination module is used for recombining the received matrix signals and transmitting the recombined matrix signals to a decoding module, the decoding module is used for decoding the signals and then transmitting the decoded signals to a signal restoring module, the signal restoring module is used for restoring the signals, the restored signals are transmitted to an output module, and the output module is used for carrying out multi-channel lossless output.
In the invention, the memory module is used for memorizing the tone and the melody of the output music and transmitting the memorized tone and melody to the classified storage module, and the classified storage module is used for storing the received data.
In the invention, a setting module is used for setting the use period of music, after the use period is up, a first extraction module extracts the tone and the melody of the newly played music, the extracted tone and the melody are transmitted to a matching module, the matching module performs matching in a classified storage module, comparison is performed after the matching is successful, the comparison result is transmitted to a judgment module, the judgment module is used for judging whether the tone and the melody in two groups at different periods are consistent, if so, the music can be normally used, and if not, a repair signal is sent to a repair module.
In the invention, the repair module repairs the tone and the rhythm of the output music, the comparison is carried out again after the repair, and when the comparison is inconsistent, the warning module warns.
In the invention, the second extraction module is used for extracting the data of the repair time and the repair times and transmitting the extracted data to the calculation module, and the calculation module is used for calculating the repair frequency and transmitting the data of the extracted and repaired frequency to the classification storage module for storage.
In the invention, a separation module receives L, R dual-channel signals for separation, the separated signals are transmitted to a matrix processing module, the matrix processing module carries out matrix processing on the separated signals and transmits the processed signals to a recombination module, the recombination module recombines the received matrix signals and transmits the recombined signals to a decoding module, the decoding module decodes the signals and then transmits the decoded signals to a signal restoring module, the signal restoring module restores the signals, the restored signals are transmitted to an output module, the output module carries out multi-channel lossless output, a memory module memorizes the timbre and the temperament of the output music and transmits the memorized timbre and the temperament to a classified storage module, the classified storage module stores the received data, a setting module sets the use period of the music, and after the use period arrives, the first extraction module extracts the tone and the rhythm of the newly played music, the extracted tone and the rhythm are transmitted to the matching module, the matching module is matched in the classified storage module, the comparison is carried out after the matching is successful, the comparison result is transmitted to the judgment module, the judgment module judges whether the tone and the rhythm of two groups of music in different periods are consistent or not, if the two groups of tones and the rhythm are consistent, the judgment module can be normally used, if the two groups of tones and the rhythm are inconsistent, the repair module sends repair signals to the repair module, the repair module repairs the tone and the rhythm of the output music, the comparison is carried out again after the repair, and if the two groups of tones and the rhythm are inconsistent, the warning module warns, the second extraction module extracts the repair time and repair frequency data, transmits the extracted data to the calculation module, the calculation module calculates the repair frequency, and transmits the extracted and repaired frequency data to the classified storage module for storage.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (4)

1. An audio processing system comprises a separation module, a matrix processing module, a recombination module, a decoding module, a signal restoration module, an output module, a first extraction module, a matching module, a judgment module, a restoration module, a second extraction module, a calculation module, a classification storage module, a memory module, a setting module and a warning module, and is characterized in that the separation module is connected with the matrix processing module, the matrix processing module is connected with the recombination module, the recombination module is connected with the decoding module, the decoding module is connected with the signal restoration module, the signal restoration module is connected with the output module, the output module is connected with the first extraction module, the first extraction module is connected with the matching module, the matching module is connected with the judgment module, the judgment module is connected with the restoration module, the restoration module is connected with the second extraction module, and the second extraction module is connected with the calculation module, the calculating module is connected with the classified storage module, the classified storage module is connected with the matching module, the matching module is connected with the warning module, the setting module is connected with the output module, the output module is connected with the memory module, and the memory module is connected with the classified storage module;
the separation module is used for receiving L, R binaural signals for separation and transmitting the separated signals to the matrix processing module, and the matrix processing module is used for performing matrix processing on the separated signals and transmitting the processed signals to the recombination module;
the device comprises a recombination module, a decoding module, a signal restoration module, an output module and an output module, wherein the recombination module is used for recombining a received matrix signal and transmitting the recombined signal to the decoding module, the decoding module is used for decoding the signal and then transmitting the decoded signal to the signal restoration module, the signal restoration module is used for restoring the signal, the restored signal is transmitted to the output module, and the output module is used for carrying out multi-channel lossless output;
the memory module is used for memorizing the tone and the melody of the output music and transmitting the memorized tone and the melody to the classified storage module, and the classified storage module is used for storing the received data;
the device comprises a setting module, a first extracting module, a matching module, a judging module and a restoring module, wherein the setting module is used for setting the service cycle of music, after the service cycle is up, the first extracting module extracts the tone and the melody of the newly played music, transmits the extracted tone and the melody to the matching module, the matching module performs matching in a classified storage module, compares the matched tone and the melody after the matching is successful, and transmits a comparison result to the judging module;
the repairing module repairs the tone and the rhythm of the output music, the output music is compared again after being repaired, and when the comparison is inconsistent, the warning module warns;
the second extraction module is used for extracting the repair time and repair frequency data and transmitting the extracted data to the calculation module, and the calculation module is used for calculating the repair frequency and transmitting the extracted and repaired frequency data to the classification storage module for storage.
2. The audio processing system according to claim 1, wherein the second extraction module includes a repair time extraction unit, a repair number extraction unit, and an identification classification unit, the repair time extraction unit is connected to the repair number extraction unit, and the repair number extraction unit is connected to the identification classification unit.
3. The audio processing system according to claim 1, wherein the classification storage module includes an audio storage unit, a repair times storage unit, a repair time storage unit, and a repair frequency storage unit, the audio storage unit is connected to the repair times storage unit, the repair times storage unit is connected to the repair time storage unit, and the repair time storage unit is connected to the repair frequency storage unit.
4. The audio processing system according to claim 1, wherein the first extracting module comprises a tone extracting unit, a temperament extracting unit and a sending unit which are connected in sequence, the matching module comprises a temporary storage unit, a matching unit and a comparison unit which are connected in sequence, the setting module comprises a login unit, a verification unit and a setting unit which are connected in sequence, and the warning module comprises an audible and visual warning unit and an information warning unit.
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KR100266578B1 (en) * 1997-06-11 2000-09-15 구자홍 Automatic tone correction method and apparatus
SE0402652D0 (en) * 2004-11-02 2004-11-02 Coding Tech Ab Methods for improved performance of prediction based multi-channel reconstruction
CN101248483B (en) * 2005-07-19 2011-11-23 皇家飞利浦电子股份有限公司 Generation of multi-channel audio signals
CN102802112B (en) * 2011-05-24 2014-08-13 鸿富锦精密工业（深圳）有限公司 Electronic device with audio file format conversion function
US9552819B2 (en) * 2013-11-27 2017-01-24 Dts, Inc. Multiplet-based matrix mixing for high-channel count multichannel audio
CN104766612A (en) * 2015-04-13 2015-07-08 李素平 Sinusoidal model separation method based on musical sound timbre matching
GB2548325B (en) * 2016-02-10 2021-12-01 Audiotelligence Ltd Acoustic source seperation systems
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