AU2009267518B2 - 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 Download PDF

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AU2009267518B2
AU2009267518B2 AU2009267518A AU2009267518A AU2009267518B2 AU 2009267518 B2 AU2009267518 B2 AU 2009267518B2 AU 2009267518 A AU2009267518 A AU 2009267518A AU 2009267518 A AU2009267518 A AU 2009267518A AU 2009267518 B2 AU2009267518 B2 AU 2009267518B2
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block
domain
aliasing
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audio signal
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AU2009267518A1 (en
Inventor
Stefan Bayer
Guillaume Fuchs
Ralf Geiger
Jens Hirschfeld
Jeremie Lecomte
Markus Multrus
Gerald Schuller
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Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
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    • 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

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  • 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)
AU2009267518A 2008-07-11 2009-06-17 Apparatus and method for encoding/decoding an audio signal using an aliasing switch scheme Active AU2009267518B2 (en)

Applications Claiming Priority (3)

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US7985208P 2008-07-11 2008-07-11
US61/079,852 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

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AU2009267518A1 AU2009267518A1 (en) 2010-01-14
AU2009267518B2 true AU2009267518B2 (en) 2012-08-16

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EP (1) EP2301020B1 (https=)
JP (1) JP5551693B2 (https=)
KR (1) KR101250309B1 (https=)
CN (1) CN102089812B (https=)
AR (1) AR072479A1 (https=)
AU (1) AU2009267518B2 (https=)
BR (1) BRPI0910783B1 (https=)
CA (1) CA2730355C (https=)
CO (1) CO6341672A2 (https=)
ES (1) ES2401487T3 (https=)
MX (1) MX2011000373A (https=)
MY (1) MY152252A (https=)
PL (1) PL2301020T3 (https=)
RU (1) RU2492530C2 (https=)
TW (1) TWI426503B (https=)
WO (1) WO2010003532A1 (https=)
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RU2492530C2 (ru) 2013-09-10
CA2730355A1 (en) 2010-01-14
ES2401487T3 (es) 2013-04-22
PL2301020T3 (pl) 2013-06-28
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BRPI0910783B1 (pt) 2024-02-27
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US20110173009A1 (en) 2011-07-14
WO2010003532A1 (en) 2010-01-14
EP2301020A1 (en) 2011-03-30
ZA201009259B (en) 2011-09-28
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JP5551693B2 (ja) 2014-07-16
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HK1155842A1 (en) 2012-05-25
KR20110040823A (ko) 2011-04-20
CA2730355C (en) 2016-03-22
AU2009267518A1 (en) 2010-01-14
US8862480B2 (en) 2014-10-14
CN102089812A (zh) 2011-06-08
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JP2011527446A (ja) 2011-10-27
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RU2011102426A (ru) 2012-07-27

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