TW200923913A - Encoding and/or decoding digital content - Google Patents

Encoding and/or decoding digital content Download PDF

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Publication number
TW200923913A
TW200923913A TW097131504A TW97131504A TW200923913A TW 200923913 A TW200923913 A TW 200923913A TW 097131504 A TW097131504 A TW 097131504A TW 97131504 A TW97131504 A TW 97131504A TW 200923913 A TW200923913 A TW 200923913A
Authority
TW
Taiwan
Prior art keywords
values
value
digital signal
audio
signal samples
Prior art date
Application number
TW097131504A
Other languages
English (en)
Chinese (zh)
Inventor
Gregory Burns
Phillip Rutschman
Original Assignee
Qualcomm 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
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of TW200923913A publication Critical patent/TW200923913A/zh

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Classifications

    • 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
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/035—Scalar quantisation
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—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 spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • 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
    • G10L19/04—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
TW097131504A 2007-08-17 2008-08-18 Encoding and/or decoding digital content TW200923913A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/840,880 US8521540B2 (en) 2007-08-17 2007-08-17 Encoding and/or decoding digital signals using a permutation value

Publications (1)

Publication Number Publication Date
TW200923913A true TW200923913A (en) 2009-06-01

Family

ID=40363656

Family Applications (1)

Application Number Title Priority Date Filing Date
TW097131504A TW200923913A (en) 2007-08-17 2008-08-18 Encoding and/or decoding digital content

Country Status (7)

Country Link
US (1) US8521540B2 (https=)
EP (1) EP2191381B1 (https=)
JP (1) JP5265682B2 (https=)
KR (1) KR20100083126A (https=)
CN (1) CN101815992B (https=)
TW (1) TW200923913A (https=)
WO (1) WO2009025676A1 (https=)

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Also Published As

Publication number Publication date
US8521540B2 (en) 2013-08-27
US20090048852A1 (en) 2009-02-19
KR20100083126A (ko) 2010-07-21
JP2010537245A (ja) 2010-12-02
EP2191381A1 (en) 2010-06-02
JP5265682B2 (ja) 2013-08-14
CN101815992A (zh) 2010-08-25
EP2191381A4 (en) 2010-09-15
WO2009025676A1 (en) 2009-02-26
EP2191381B1 (en) 2013-01-02
CN101815992B (zh) 2013-12-25

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