DK0716787T3 - Spektral indhylningskodning med lav bithastighed og høj opløsning for audiokoder og dekoder - Google Patents

Spektral indhylningskodning med lav bithastighed og høj opløsning for audiokoder og dekoder

Info

Publication number
DK0716787T3
DK0716787T3 DK94927268.6T DK94927268T DK0716787T3 DK 0716787 T3 DK0716787 T3 DK 0716787T3 DK 94927268 T DK94927268 T DK 94927268T DK 0716787 T3 DK0716787 T3 DK 0716787T3
Authority
DK
Denmark
Prior art keywords
spectral envelope
input signal
decoder
audio
spectral
Prior art date
Application number
DK94927268.6T
Other languages
English (en)
Inventor
Craig Campbell Todd
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 DK0716787T3 publication Critical patent/DK0716787T3/da

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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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/035—Scalar quantisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Dc Digital Transmission (AREA)
DK94927268.6T 1993-08-31 1994-08-30 Spektral indhylningskodning med lav bithastighed og høj opløsning for audiokoder og dekoder DK0716787T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/115,513 US5581653A (en) 1993-08-31 1993-08-31 Low bit-rate high-resolution spectral envelope coding for audio encoder and decoder

Publications (1)

Publication Number Publication Date
DK0716787T3 true DK0716787T3 (da) 1997-06-23

Family

ID=22361888

Family Applications (1)

Application Number Title Priority Date Filing Date
DK94927268.6T DK0716787T3 (da) 1993-08-31 1994-08-30 Spektral indhylningskodning med lav bithastighed og høj opløsning for audiokoder og dekoder

Country Status (11)

Country Link
US (1) US5581653A (da)
EP (1) EP0716787B1 (da)
JP (1) JP3940165B2 (da)
AT (1) ATE147910T1 (da)
AU (1) AU685505B2 (da)
CA (1) CA2167527C (da)
DE (1) DE69401517T2 (da)
DK (1) DK0716787T3 (da)
ES (1) ES2097061T3 (da)
SG (1) SG48278A1 (da)
WO (1) WO1995006984A1 (da)

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Also Published As

Publication number Publication date
SG48278A1 (en) 1998-04-17
CA2167527C (en) 2004-05-18
EP0716787A1 (en) 1996-06-19
AU7676594A (en) 1995-03-22
DE69401517D1 (de) 1997-02-27
WO1995006984A1 (en) 1995-03-09
US5581653A (en) 1996-12-03
ES2097061T3 (es) 1997-03-16
ATE147910T1 (de) 1997-02-15
EP0716787B1 (en) 1997-01-15
CA2167527A1 (en) 1995-03-09
JPH09502314A (ja) 1997-03-04
DE69401517T2 (de) 1997-06-12
AU685505B2 (en) 1998-01-22
JP3940165B2 (ja) 2007-07-04

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