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
Authority
ZA
South Africa
Prior art keywords
generating
subband values
audio
audio samples
domain audio
Prior art date
Application number
ZA200810308A
Other languages
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
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 ZA200810308B publication Critical patent/ZA200810308B/xx

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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
    • 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
    • G10L19/0204—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 using subband decomposition
    • 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
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/45—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of analysis window
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0264—Filter sets with mutual related characteristics
    • H03H17/0266—Filter banks
    • 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
    • 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)
  • 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)
  • Developing Agents For Electrophotography (AREA)
  • External Artificial Organs (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (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)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86295406P 2006-10-25 2006-10-25

Publications (1)

Publication Number Publication Date
ZA200810308B true ZA200810308B (en) 2009-12-30

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ZA200810308A ZA200810308B (en) 2006-10-25 2008-12-04 Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
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

Family Applications After (1)

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Country Status (26)

Country Link
US (5) USRE50015E1 (no)
EP (10) EP3288027B1 (no)
JP (2) JP5083779B2 (no)
KR (2) KR101056253B1 (no)
CN (2) CN101606194B (no)
AR (2) AR063400A1 (no)
AT (1) ATE435480T1 (no)
AU (2) AU2007308415B2 (no)
BR (2) BRPI0709310B1 (no)
CA (2) CA2667505C (no)
DE (1) DE602007001460D1 (no)
DK (2) DK1994530T3 (no)
ES (6) ES2873254T3 (no)
FI (1) FI3848928T3 (no)
HK (2) HK1119824A1 (no)
HU (1) HUE064482T2 (no)
IL (2) IL193786A (no)
MX (2) MX2008011898A (no)
MY (2) MY142520A (no)
NO (3) NO341567B1 (no)
PL (6) PL3848928T3 (no)
PT (5) PT2076901T (no)
RU (2) RU2420815C2 (no)
TW (2) TWI355649B (no)
WO (2) WO2008049590A1 (no)
ZA (2) ZA200810308B (no)

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