DK1629463T3 - Fremgangsmåde, apparat og computerprogram til beregning og justering af den opfattede styrke af et audiosignal - Google Patents

Fremgangsmåde, apparat og computerprogram til beregning og justering af den opfattede styrke af et audiosignal

Info

Publication number
DK1629463T3
DK1629463T3 DK04776174T DK04776174T DK1629463T3 DK 1629463 T3 DK1629463 T3 DK 1629463T3 DK 04776174 T DK04776174 T DK 04776174T DK 04776174 T DK04776174 T DK 04776174T DK 1629463 T3 DK1629463 T3 DK 1629463T3
Authority
DK
Denmark
Prior art keywords
audio signal
calculating
loudness
functions
adjusting
Prior art date
Application number
DK04776174T
Other languages
Danish (da)
English (en)
Inventor
Alan Jeffrey Seefeldt
Michael J Smithers
Brett Graham Crockett
Original Assignee
Dolby Lab 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.)
Filing date
Publication date
Application filed by Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Application granted granted Critical
Publication of DK1629463T3 publication Critical patent/DK1629463T3/da

Links

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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/27—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/005—Combinations of two or more types of control, e.g. gain control and tone control of digital or coded signals
    • 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/005—Tone control or bandwidth control in amplifiers of digital signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Television Receiver Circuits (AREA)
  • Circuits Of Receivers In General (AREA)
DK04776174T 2003-05-28 2004-05-27 Fremgangsmåde, apparat og computerprogram til beregning og justering af den opfattede styrke af et audiosignal DK1629463T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47407703P 2003-05-28 2003-05-28
PCT/US2004/016964 WO2004111994A2 (en) 2003-05-28 2004-05-27 Method, apparatus and computer program for calculating and adjusting the perceived loudness of an audio signal

Publications (1)

Publication Number Publication Date
DK1629463T3 true DK1629463T3 (da) 2007-12-10

Family

ID=33551475

Family Applications (1)

Application Number Title Priority Date Filing Date
DK04776174T DK1629463T3 (da) 2003-05-28 2004-05-27 Fremgangsmåde, apparat og computerprogram til beregning og justering af den opfattede styrke af et audiosignal

Country Status (19)

Country Link
US (1) US8437482B2 (zh)
EP (1) EP1629463B1 (zh)
JP (1) JP4486646B2 (zh)
KR (1) KR101164937B1 (zh)
CN (2) CN1795490A (zh)
AT (1) ATE371246T1 (zh)
AU (1) AU2004248544B2 (zh)
BR (1) BRPI0410740A (zh)
CA (1) CA2525942C (zh)
DE (1) DE602004008455T2 (zh)
DK (1) DK1629463T3 (zh)
ES (1) ES2290764T3 (zh)
HK (2) HK1083918A1 (zh)
IL (1) IL172108A (zh)
IN (1) IN2010KN02913A (zh)
MX (1) MXPA05012785A (zh)
PL (1) PL1629463T3 (zh)
SG (1) SG185134A1 (zh)
WO (1) WO2004111994A2 (zh)

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KR20060013400A (ko) 2006-02-09
EP1629463B1 (en) 2007-08-22
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WO2004111994A3 (en) 2005-08-11
WO2004111994A2 (en) 2004-12-23
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IL172108A (en) 2010-11-30
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US20070092089A1 (en) 2007-04-26
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CN1795490A (zh) 2006-06-28
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