ZA200810308B - Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples - Google Patents

Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples

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Publication number
ZA200810308B
ZA200810308B ZA200810308A ZA200810308A ZA200810308B ZA 200810308 B ZA200810308 B ZA 200810308B ZA 200810308 A ZA200810308 A ZA 200810308A ZA 200810308 A ZA200810308 A ZA 200810308A ZA 200810308 B ZA200810308 B ZA 200810308B
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ZA
South Africa
Prior art keywords
generating
subband values
audio
audio samples
domain audio
Prior art date
Application number
ZA200810308A
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English (en)
Inventor
Gerald Schuller
Ralf Geiger
Bernhard Grill
Markus Schmidt
Markus Schnell
Manfred Lutzky
Markus Lohwasser
Marc Gayer
Michael Mellar
Bernd Edler
Markus Multrus
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Fraunhofer Ges Forschung
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Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of ZA200810308B publication Critical patent/ZA200810308B/xx

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    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • G10L19/0204Speech 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
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • G10L19/022Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/45Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of analysis window
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00Networks using digital techniques
    • H03H17/02Frequency selective networks
    • H03H17/0248Filters characterised by a particular frequency response or filtering method
    • H03H17/0264Filter sets with mutual related characteristics
    • H03H17/0266Filter banks
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00Conversion 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
    • H03M7/30Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00Speech 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
    • G10L21/02Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Liquid Crystal Substances (AREA)
  • Tires In General (AREA)
  • External Artificial Organs (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Materials For Photolithography (AREA)
  • Peptides Or Proteins (AREA)
ZA200810308A 2006-10-25 2008-12-04 Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples ZA200810308B (en)

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US86295406P 2006-10-25 2006-10-25

Publications (1)

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ZA200810308B true ZA200810308B (en) 2009-12-30

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ZA200902199A ZA200902199B (en) 2006-10-25 2009-03-30 Apparatus and methods for generating audio subband values and apparatus and method for generating time-domain audio samples

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US (11) USRE50157E1 (hu)
EP (10) EP3288027B1 (hu)
JP (2) JP5083779B2 (hu)
KR (2) KR100957711B1 (hu)
CN (2) CN101405791B (hu)
AR (2) AR063394A1 (hu)
AT (1) ATE435480T1 (hu)
AU (2) AU2007308415B2 (hu)
BR (2) BRPI0716315A2 (hu)
CA (2) CA2667505C (hu)
DE (1) DE602007001460D1 (hu)
DK (2) DK1994530T3 (hu)
ES (6) ES2834024T3 (hu)
FI (1) FI3848928T3 (hu)
HK (2) HK1119824A1 (hu)
HU (1) HUE064482T2 (hu)
IL (2) IL193786A (hu)
MX (2) MX2008011898A (hu)
MY (2) MY142520A (hu)
NO (3) NO341567B1 (hu)
PL (6) PL3848928T3 (hu)
PT (5) PT3288027T (hu)
RU (2) RU2411645C2 (hu)
TW (2) TWI357065B (hu)
WO (2) WO2008049590A1 (hu)
ZA (2) ZA200810308B (hu)

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