DE602007002291D1 - Lautstärkemessung von tonsignalen und änderung im mdct-bereich - Google Patents

Lautstärkemessung von tonsignalen und änderung im mdct-bereich

Info

Publication number
DE602007002291D1
DE602007002291D1 DE602007002291T DE602007002291T DE602007002291D1 DE 602007002291 D1 DE602007002291 D1 DE 602007002291D1 DE 602007002291 T DE602007002291 T DE 602007002291T DE 602007002291 T DE602007002291 T DE 602007002291T DE 602007002291 D1 DE602007002291 D1 DE 602007002291D1
Authority
DE
Germany
Prior art keywords
loudness
frequency band
audio signal
change
volume measurement
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
DE602007002291T
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English (en)
Inventor
Alan Jeffrey Seefeldt
Brett Graham Crockett
Michael John Smithers
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 Laboratories Licensing Corp
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Dolby Laboratories Licensing Corp
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.)
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Publication date
Application filed by Dolby Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Publication of DE602007002291D1 publication Critical patent/DE602007002291D1/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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L25/69—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for evaluating synthetic or decoded voice signals
    • 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
    • G10L19/02—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
DE602007002291T 2006-04-04 2007-03-30 Lautstärkemessung von tonsignalen und änderung im mdct-bereich Active DE602007002291D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US78952606P 2006-04-04 2006-04-04
PCT/US2007/007945 WO2007120452A1 (en) 2006-04-04 2007-03-30 Audio signal loudness measurement and modification in the mdct domain

Publications (1)

Publication Number Publication Date
DE602007002291D1 true DE602007002291D1 (de) 2009-10-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE602007002291T Active DE602007002291D1 (de) 2006-04-04 2007-03-30 Lautstärkemessung von tonsignalen und änderung im mdct-bereich

Country Status (8)

Country Link
US (1) US8504181B2 (de)
EP (1) EP2002426B1 (de)
JP (1) JP5185254B2 (de)
CN (1) CN101410892B (de)
AT (1) ATE441920T1 (de)
DE (1) DE602007002291D1 (de)
TW (1) TWI417872B (de)
WO (1) WO2007120452A1 (de)

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EP2002426B1 (de) 2009-09-02
ATE441920T1 (de) 2009-09-15
JP5185254B2 (ja) 2013-04-17
EP2002426A1 (de) 2008-12-17
JP2009532738A (ja) 2009-09-10
CN101410892A (zh) 2009-04-15
TW200746050A (en) 2007-12-16
US8504181B2 (en) 2013-08-06
CN101410892B (zh) 2012-08-08
WO2007120452A1 (en) 2007-10-25

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