HK1155842A1 - Apparatus and method for encoding/decoding an audio signal using an aliasing switch scheme - Google Patents

Apparatus and method for encoding/decoding an audio signal using an aliasing switch scheme

Info

Publication number
HK1155842A1
HK1155842A1 HK11109867.8A HK11109867A HK1155842A1 HK 1155842 A1 HK1155842 A1 HK 1155842A1 HK 11109867 A HK11109867 A HK 11109867A HK 1155842 A1 HK1155842 A1 HK 1155842A1
Authority
HK
Hong Kong
Prior art keywords
decoding
encoding
audio signal
switch scheme
aliasing
Prior art date
Application number
HK11109867.8A
Other languages
English (en)
Inventor
Guillaume Fuchs
Jeremie Lecomte
Stefan Bayer
Ralf Geiger
Markus Multrus
Gerald Schuller
Jens Hirschfeld
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of HK1155842A1 publication Critical patent/HK1155842A1/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
    • G10L19/04—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 predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • 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
    • G10L19/04—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 predictive techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
HK11109867.8A 2008-07-11 2011-09-20 Apparatus and method for encoding/decoding an audio signal using an aliasing switch scheme HK1155842A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7985208P 2008-07-11 2008-07-11
PCT/EP2009/004374 WO2010003532A1 (en) 2008-07-11 2009-06-17 Apparatus and method for encoding/decoding an audio signal using an aliasing switch scheme

Publications (1)

Publication Number Publication Date
HK1155842A1 true HK1155842A1 (en) 2012-05-25

Family

ID=41058650

Family Applications (1)

Application Number Title Priority Date Filing Date
HK11109867.8A HK1155842A1 (en) 2008-07-11 2011-09-20 Apparatus and method for encoding/decoding an audio signal using an aliasing switch scheme

Country Status (19)

Country Link
US (1) US8862480B2 (zh)
EP (1) EP2301020B1 (zh)
JP (1) JP5551693B2 (zh)
KR (1) KR101250309B1 (zh)
CN (1) CN102089812B (zh)
AR (1) AR072479A1 (zh)
AU (1) AU2009267518B2 (zh)
BR (1) BRPI0910783B1 (zh)
CA (1) CA2730355C (zh)
CO (1) CO6341672A2 (zh)
ES (1) ES2401487T3 (zh)
HK (1) HK1155842A1 (zh)
MX (1) MX2011000373A (zh)
MY (1) MY152252A (zh)
PL (1) PL2301020T3 (zh)
RU (1) RU2492530C2 (zh)
TW (1) TWI426503B (zh)
WO (1) WO2010003532A1 (zh)
ZA (1) ZA201009259B (zh)

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Also Published As

Publication number Publication date
BRPI0910783B1 (pt) 2024-02-27
US20110173009A1 (en) 2011-07-14
CN102089812B (zh) 2013-03-20
CO6341672A2 (es) 2011-11-21
TWI426503B (zh) 2014-02-11
EP2301020B1 (en) 2013-01-02
PL2301020T3 (pl) 2013-06-28
AU2009267518A1 (en) 2010-01-14
MX2011000373A (es) 2011-03-15
KR20110040823A (ko) 2011-04-20
CN102089812A (zh) 2011-06-08
CA2730355A1 (en) 2010-01-14
JP5551693B2 (ja) 2014-07-16
WO2010003532A1 (en) 2010-01-14
CA2730355C (en) 2016-03-22
RU2011102426A (ru) 2012-07-27
ZA201009259B (en) 2011-09-28
BRPI0910783A2 (pt) 2020-11-03
US8862480B2 (en) 2014-10-14
TW201011737A (en) 2010-03-16
KR101250309B1 (ko) 2013-04-04
EP2301020A1 (en) 2011-03-30
AU2009267518B2 (en) 2012-08-16
AR072479A1 (es) 2010-09-01
ES2401487T3 (es) 2013-04-22
RU2492530C2 (ru) 2013-09-10
JP2011527446A (ja) 2011-10-27
MY152252A (en) 2014-09-15

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