DE602006001194D1 - Kodierung von tonsignalen mit zeitverzerrter modifizierter umwandlung - Google Patents

Kodierung von tonsignalen mit zeitverzerrter modifizierter umwandlung

Info

Publication number
DE602006001194D1
DE602006001194D1 DE602006001194T DE602006001194T DE602006001194D1 DE 602006001194 D1 DE602006001194 D1 DE 602006001194D1 DE 602006001194 T DE602006001194 T DE 602006001194T DE 602006001194 T DE602006001194 T DE 602006001194T DE 602006001194 D1 DE602006001194 D1 DE 602006001194D1
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DE
Germany
Prior art keywords
time
coding
tone signals
derived
window functions
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
DE602006001194T
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English (en)
Inventor
Lars Villemoes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dolby Sweden AB
Original Assignee
Coding Technologies Sweden AB
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Filing date
Publication date
Application filed by Coding Technologies Sweden AB filed Critical Coding Technologies Sweden AB
Publication of DE602006001194D1 publication Critical patent/DE602006001194D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • G10L19/002—Dynamic bit allocation
    • 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • G10L19/0212—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 orthogonal transformation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
DE602006001194T 2005-11-03 2006-10-24 Kodierung von tonsignalen mit zeitverzerrter modifizierter umwandlung Active DE602006001194D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US73351205P 2005-11-03 2005-11-03
US11/464,176 US7720677B2 (en) 2005-11-03 2006-08-11 Time warped modified transform coding of audio signals
PCT/EP2006/010246 WO2007051548A1 (en) 2005-11-03 2006-10-24 Time warped modified transform coding of audio signals

Publications (1)

Publication Number Publication Date
DE602006001194D1 true DE602006001194D1 (de) 2008-06-26

Family

ID=37507461

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602006001194T Active DE602006001194D1 (de) 2005-11-03 2006-10-24 Kodierung von tonsignalen mit zeitverzerrter modifizierter umwandlung

Country Status (14)

Country Link
US (3) US7720677B2 (de)
EP (7) EP2306455B1 (de)
JP (4) JP4927088B2 (de)
KR (1) KR100959701B1 (de)
CN (2) CN101351840B (de)
AT (1) ATE395687T1 (de)
DE (1) DE602006001194D1 (de)
DK (1) DK1807825T3 (de)
ES (5) ES2967257T3 (de)
HK (2) HK1105159A1 (de)
MY (1) MY141264A (de)
PL (1) PL1807825T3 (de)
TW (1) TWI320172B (de)
WO (1) WO2007051548A1 (de)

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US8682652B2 (en) * 2006-06-30 2014-03-25 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic
US8239190B2 (en) * 2006-08-22 2012-08-07 Qualcomm Incorporated Time-warping frames of wideband vocoder
US9653088B2 (en) 2007-06-13 2017-05-16 Qualcomm Incorporated Systems, methods, and apparatus for signal encoding using pitch-regularizing and non-pitch-regularizing coding
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EP2077550B8 (de) * 2008-01-04 2012-03-14 Dolby International AB Audiokodierer und -dekodierer
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Also Published As

Publication number Publication date
EP1807825A1 (de) 2007-07-18
CN101351840A (zh) 2009-01-21
ES2604758T3 (es) 2017-03-09
HK1105159A1 (en) 2008-02-01
JP6125324B2 (ja) 2017-05-10
CN102592602A (zh) 2012-07-18
JP5323164B2 (ja) 2013-10-23
EP4290512A2 (de) 2023-12-13
ES2646814T3 (es) 2017-12-18
EP3319086A1 (de) 2018-05-09
US20100204998A1 (en) 2010-08-12
US20130218579A1 (en) 2013-08-22
EP1807825B1 (de) 2008-05-14
TWI320172B (en) 2010-02-01
CN101351840B (zh) 2012-04-04
JP2012068660A (ja) 2012-04-05
EP3319086B1 (de) 2021-02-17
MY141264A (en) 2010-04-16
EP2306455B1 (de) 2017-09-27
EP1953738B1 (de) 2016-10-12
CN102592602B (zh) 2015-11-25
ATE395687T1 (de) 2008-05-15
ES2967257T3 (es) 2024-04-29
ES2863667T3 (es) 2021-10-11
JP2015018274A (ja) 2015-01-29
EP4290513A2 (de) 2023-12-13
EP1953738A1 (de) 2008-08-06
JP4927088B2 (ja) 2012-05-09
PL1807825T3 (pl) 2009-01-30
TW200719319A (en) 2007-05-16
JP2013210654A (ja) 2013-10-10
KR100959701B1 (ko) 2010-05-24
EP3852103A1 (de) 2021-07-21
EP3852103B1 (de) 2023-11-29
US8412518B2 (en) 2013-04-02
US7720677B2 (en) 2010-05-18
WO2007051548A1 (en) 2007-05-10
KR20080066760A (ko) 2008-07-16
JP2009515207A (ja) 2009-04-09
EP4290512A3 (de) 2024-02-14
US20070100607A1 (en) 2007-05-03
JP6084595B2 (ja) 2017-02-22
EP2306455A1 (de) 2011-04-06
DK1807825T3 (da) 2008-09-08
HK1254427A1 (zh) 2019-07-19
EP4290513A3 (de) 2024-02-14
ES2307287T3 (es) 2008-11-16
US8838441B2 (en) 2014-09-16

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