PL183092B1 - Produkt akustyczny wielokanałowy - Google Patents

Produkt akustyczny wielokanałowy

Info

Publication number
PL183092B1
PL183092B1 PL96346687A PL34668796A PL183092B1 PL 183092 B1 PL183092 B1 PL 183092B1 PL 96346687 A PL96346687 A PL 96346687A PL 34668796 A PL34668796 A PL 34668796A PL 183092 B1 PL183092 B1 PL 183092B1
Authority
PL
Poland
Prior art keywords
audio
frame
acoustic
channel
bit
Prior art date
Application number
PL96346687A
Other languages
English (en)
Polish (pl)
Inventor
Stephen M. Smyth
Michael H. Smyth
William P. Smith
Original Assignee
Digital Theater Systems
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 Digital Theater Systems filed Critical Digital Theater Systems
Publication of PL183092B1 publication Critical patent/PL183092B1/pl

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
    • 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 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
    • G10L19/0208—Subband vocoders
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Stereophonic System (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Color Television Systems (AREA)
PL96346687A 1995-12-01 1996-11-21 Produkt akustyczny wielokanałowy PL183092B1 (pl)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US789695P 1995-12-01 1995-12-01
US08/642,254 US5956674A (en) 1995-12-01 1996-05-02 Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
PCT/US1996/018764 WO1997021211A1 (en) 1995-12-01 1996-11-21 Multi-channel predictive subband coder using psychoacoustic adaptive bit allocation

Publications (1)

Publication Number Publication Date
PL183092B1 true PL183092B1 (pl) 2002-05-31

Family

ID=26677495

Family Applications (3)

Application Number Title Priority Date Filing Date
PL96346687A PL183092B1 (pl) 1995-12-01 1996-11-21 Produkt akustyczny wielokanałowy
PL96346688A PL183498B1 (pl) 1995-12-01 1996-11-21 Dekoder akustyczny wielokanałowy
PL96327082A PL182240B1 (pl) 1995-12-01 1996-11-21 Koder akustyczny wielokanalowy PL PL PL PL PL PL PL PL PL

Family Applications After (2)

Application Number Title Priority Date Filing Date
PL96346688A PL183498B1 (pl) 1995-12-01 1996-11-21 Dekoder akustyczny wielokanałowy
PL96327082A PL182240B1 (pl) 1995-12-01 1996-11-21 Koder akustyczny wielokanalowy PL PL PL PL PL PL PL PL PL

Country Status (17)

Country Link
US (4) US5956674A (enExample)
EP (1) EP0864146B1 (enExample)
JP (1) JP4174072B2 (enExample)
KR (1) KR100277819B1 (enExample)
CN (5) CN1132151C (enExample)
AT (1) ATE279770T1 (enExample)
AU (1) AU705194B2 (enExample)
BR (1) BR9611852A (enExample)
CA (2) CA2238026C (enExample)
DE (1) DE69633633T2 (enExample)
DK (1) DK0864146T3 (enExample)
EA (1) EA001087B1 (enExample)
ES (1) ES2232842T3 (enExample)
MX (1) MX9804320A (enExample)
PL (3) PL183092B1 (enExample)
PT (1) PT864146E (enExample)
WO (1) WO1997021211A1 (enExample)

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* Cited by examiner, † Cited by third party
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AU705194B2 (en) 1999-05-20
CA2238026A1 (en) 1997-06-12
PT864146E (pt) 2005-02-28
CN1848242B (zh) 2012-04-18
PL182240B1 (pl) 2001-11-30
WO1997021211A1 (en) 1997-06-12
CN1495705A (zh) 2004-05-12
CA2331611A1 (en) 1997-06-12
ATE279770T1 (de) 2004-10-15
PL327082A1 (en) 1998-11-23
CN1132151C (zh) 2003-12-24
CN1848242A (zh) 2006-10-18
JP4174072B2 (ja) 2008-10-29

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