HK1070728A1 - Audio coding system using characteristics of a decoded signal to adapt synthesized spectral components - Google Patents

Audio coding system using characteristics of a decoded signal to adapt synthesized spectral components

Info

Publication number
HK1070728A1
HK1070728A1 HK05103319.3A HK05103319A HK1070728A1 HK 1070728 A1 HK1070728 A1 HK 1070728A1 HK 05103319 A HK05103319 A HK 05103319A HK 1070728 A1 HK1070728 A1 HK 1070728A1
Authority
HK
Hong Kong
Prior art keywords
spectral components
generating
signal
subband signals
decoded signal
Prior art date
Application number
HK05103319.3A
Other languages
English (en)
Inventor
Grant Allen Davidson
Michael Mead Truman
Matthew Conrad Fellers
Mark Stuart Vinton
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
Priority claimed from PCT/US2003/018065 external-priority patent/WO2003107329A1/fr
Application filed by Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Publication of HK1070728A1 publication Critical patent/HK1070728A1/xx

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
    • G10L19/02—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
    • G10L19/02—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
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Stereophonic System (AREA)
  • Adornments (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Communication System (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Optical Filters (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
HK05103319.3A 2002-06-17 2005-04-19 Audio coding system using characteristics of a decoded signal to adapt synthesized spectral components HK1070728A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/174,493 US7447631B2 (en) 2002-06-17 2002-06-17 Audio coding system using spectral hole filling
US10/238,047 US7337118B2 (en) 2002-06-17 2002-09-06 Audio coding system using characteristics of a decoded signal to adapt synthesized spectral components
PCT/US2003/018065 WO2003107329A1 (fr) 2002-06-01 2003-06-09 Systeme de codage audio utilisant des caracteristiques d'un signal decode pour adapter des composants spectraux synthetises

Publications (1)

Publication Number Publication Date
HK1070728A1 true HK1070728A1 (en) 2005-06-24

Family

ID=29733607

Family Applications (6)

Application Number Title Priority Date Filing Date
HK05103319.3A HK1070728A1 (en) 2002-06-17 2005-04-19 Audio coding system using characteristics of a decoded signal to adapt synthesized spectral components
HK05103320A HK1070729A1 (en) 2002-06-17 2005-04-19 Audio coding system using spectral hole filling
HK10107913.7A HK1141624A1 (en) 2002-06-17 2010-08-19 Audio coding system using spectral hole filling
HK10107912.8A HK1141623A1 (en) 2002-06-17 2010-08-19 Audio decoding system using spectral hole filling
HK11100293.1A HK1146146A1 (en) 2002-06-17 2011-01-13 System for audio decoding with filling of spectral holes
HK11100292.2A HK1146145A1 (en) 2002-06-17 2011-01-13 Audio decoding with filling of spectral holes

Family Applications After (5)

Application Number Title Priority Date Filing Date
HK05103320A HK1070729A1 (en) 2002-06-17 2005-04-19 Audio coding system using spectral hole filling
HK10107913.7A HK1141624A1 (en) 2002-06-17 2010-08-19 Audio coding system using spectral hole filling
HK10107912.8A HK1141623A1 (en) 2002-06-17 2010-08-19 Audio decoding system using spectral hole filling
HK11100293.1A HK1146146A1 (en) 2002-06-17 2011-01-13 System for audio decoding with filling of spectral holes
HK11100292.2A HK1146145A1 (en) 2002-06-17 2011-01-13 Audio decoding with filling of spectral holes

Country Status (20)

Country Link
US (4) US7447631B2 (fr)
EP (6) EP1514261B1 (fr)
JP (6) JP4486496B2 (fr)
KR (5) KR100991448B1 (fr)
CN (1) CN100369109C (fr)
AT (7) ATE473503T1 (fr)
CA (6) CA2735830C (fr)
DE (3) DE60333316D1 (fr)
DK (3) DK1736966T3 (fr)
ES (1) ES2275098T3 (fr)
HK (6) HK1070728A1 (fr)
IL (2) IL165650A (fr)
MX (1) MXPA04012539A (fr)
MY (2) MY159022A (fr)
PL (1) PL208344B1 (fr)
PT (1) PT2216777E (fr)
SG (3) SG177013A1 (fr)
SI (2) SI2209115T1 (fr)
TW (1) TWI352969B (fr)
WO (1) WO2003107328A1 (fr)

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