WO2007049863A8 - Removing time delays in signal paths - Google Patents

Removing time delays in signal paths

Info

Publication number
WO2007049863A8
WO2007049863A8 PCT/KR2006/003974 KR2006003974W WO2007049863A8 WO 2007049863 A8 WO2007049863 A8 WO 2007049863A8 KR 2006003974 W KR2006003974 W KR 2006003974W WO 2007049863 A8 WO2007049863 A8 WO 2007049863A8
Authority
WO
WIPO (PCT)
Prior art keywords
time delays
signal paths
removing time
compensating
apparatuses
Prior art date
Application number
PCT/KR2006/003974
Other languages
French (fr)
Other versions
WO2007049863A2 (en
WO2007049863A3 (en
Inventor
Hee Suck Pang
Dong Soo Kim
Jae Hyun Lim
Hyen O Oh
Yang Won Jung
Original Assignee
Lg Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020060078221A external-priority patent/KR20070037984A/en
Priority claimed from KR1020060078219A external-priority patent/KR20070074442A/en
Application filed by Lg Electronics Inc filed Critical Lg Electronics Inc
Priority to JP2008537581A priority Critical patent/JP5249038B2/en
Priority to CN200680039452.4A priority patent/CN101297594B/en
Priority to EP06799057.2A priority patent/EP1952672B1/en
Priority to KR1020087007451A priority patent/KR100875429B1/en
Publication of WO2007049863A2 publication Critical patent/WO2007049863A2/en
Publication of WO2007049863A3 publication Critical patent/WO2007049863A3/en
Publication of WO2007049863A8 publication Critical patent/WO2007049863A8/en

Links

Classifications

    • 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
    • G10L19/008—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 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • 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
    • G10L19/04—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 using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • 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
    • G10L19/04—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 using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • 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

Abstract

The disclosed embodiments include systems, methods, apparatuses, and computer-readable mediums for compensating one or more signals and/or one or more parameters for time delays in one or more signal processing paths.
PCT/KR2006/003974 2005-10-24 2006-10-02 Removing time delays in signal paths WO2007049863A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2008537581A JP5249038B2 (en) 2005-10-24 2006-10-02 How to compensate for time delay in signal processing
CN200680039452.4A CN101297594B (en) 2005-10-24 2006-10-02 Removing time delays in signal paths
EP06799057.2A EP1952672B1 (en) 2005-10-24 2006-10-02 Removing time delays in signal paths
KR1020087007451A KR100875429B1 (en) 2005-10-24 2006-10-02 How to compensate for time delays in signal processing

Applications Claiming Priority (20)

Application Number Priority Date Filing Date Title
US72922505P 2005-10-24 2005-10-24
US60/729,225 2005-10-24
US75700506P 2006-01-09 2006-01-09
US60/757,005 2006-01-09
US78674006P 2006-03-29 2006-03-29
US60/786,740 2006-03-29
US79232906P 2006-04-17 2006-04-17
US60/792,329 2006-04-17
KR1020060078221A KR20070037984A (en) 2005-10-04 2006-08-18 Method and apparatus for decoding multi-channel audio signals
KR10-2006-0078218 2006-08-18
KR10-2006-0078219 2006-08-18
KR1020060078225A KR20070037987A (en) 2005-10-04 2006-08-18 Method and apparatus for decoding multi-channel audio signal
KR1020060078222A KR20070037985A (en) 2005-10-04 2006-08-18 Method and apparatus method for decoding multi-channel audio signals
KR10-2006-0078225 2006-08-18
KR1020060078218A KR20070037983A (en) 2005-10-04 2006-08-18 Method for decoding multi-channel audio signals and method for generating encoded audio signal
KR10-2006-0078221 2006-08-18
KR10-2006-0078222 2006-08-18
KR1020060078223A KR20070037986A (en) 2005-10-04 2006-08-18 Method and apparatus method for processing multi-channel audio signal
KR1020060078219A KR20070074442A (en) 2006-01-09 2006-08-18 Apparatus and method for recovering multi-channel audio signal, and computer-readable medium storing a program performed in the apparatus
KR10-2006-0078223 2006-08-18

Publications (3)

Publication Number Publication Date
WO2007049863A2 WO2007049863A2 (en) 2007-05-03
WO2007049863A3 WO2007049863A3 (en) 2007-06-14
WO2007049863A8 true WO2007049863A8 (en) 2007-08-02

Family

ID=44454038

Family Applications (6)

Application Number Title Priority Date Filing Date
PCT/KR2006/003974 WO2007049863A2 (en) 2005-10-24 2006-10-02 Removing time delays in signal paths
PCT/KR2006/003976 WO2007049865A1 (en) 2005-10-24 2006-10-02 Removing time delays in signal paths
PCT/KR2006/003975 WO2007049864A1 (en) 2005-10-24 2006-10-02 Removing time delays in signal paths
PCT/KR2006/003972 WO2007049861A1 (en) 2005-10-24 2006-10-02 Removing time delays in signal paths
PCT/KR2006/003980 WO2007049866A1 (en) 2005-10-24 2006-10-02 Removing time delays in signal paths
PCT/KR2006/003973 WO2007049862A1 (en) 2005-10-24 2006-10-02 Removing time delays in signal paths

Family Applications After (5)

Application Number Title Priority Date Filing Date
PCT/KR2006/003976 WO2007049865A1 (en) 2005-10-24 2006-10-02 Removing time delays in signal paths
PCT/KR2006/003975 WO2007049864A1 (en) 2005-10-24 2006-10-02 Removing time delays in signal paths
PCT/KR2006/003972 WO2007049861A1 (en) 2005-10-24 2006-10-02 Removing time delays in signal paths
PCT/KR2006/003980 WO2007049866A1 (en) 2005-10-24 2006-10-02 Removing time delays in signal paths
PCT/KR2006/003973 WO2007049862A1 (en) 2005-10-24 2006-10-02 Removing time delays in signal paths

Country Status (11)

Country Link
US (8) US7653533B2 (en)
EP (6) EP1952670A4 (en)
JP (6) JP5270358B2 (en)
KR (7) KR100875428B1 (en)
CN (6) CN101297599A (en)
AU (1) AU2006306942B2 (en)
BR (1) BRPI0617779A2 (en)
CA (1) CA2626132C (en)
HK (1) HK1126071A1 (en)
TW (6) TWI310544B (en)
WO (6) WO2007049863A2 (en)

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