NO20091951L - Apparat og fremgangsmate for a generere audio subbandverdier, samt apparat fog fremgangsmate for a generere audioutvalg i tidsdomene - Google Patents

Apparat og fremgangsmate for a generere audio subbandverdier, samt apparat fog fremgangsmate for a generere audioutvalg i tidsdomene

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Publication number
NO20091951L
NO20091951L NO20091951A NO20091951A NO20091951L NO 20091951 L NO20091951 L NO 20091951L NO 20091951 A NO20091951 A NO 20091951A NO 20091951 A NO20091951 A NO 20091951A NO 20091951 L NO20091951 L NO 20091951L
Authority
NO
Norway
Prior art keywords
window
generating audio
time domain
samples
group
Prior art date
Application number
NO20091951A
Other languages
English (en)
Other versions
NO341610B1 (no
Inventor
Manfred Lutzky
Ralf Geiger
Gerald Schuller
Marc Gayer
Markus Lohwasser
Bernhard Grill
Markus Schnell
Markus Schmidt
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.)
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Publication date
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of NO20091951L publication Critical patent/NO20091951L/no
Publication of NO341610B1 publication Critical patent/NO341610B1/no

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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
    • G10L19/022—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
    • 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
    • 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)
  • External Artificial Organs (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Peptides Or Proteins (AREA)
  • Materials For Photolithography (AREA)

Abstract

En utførelse av et apparat (100) for å generere audiodelbåndsverdier i audiodelbåndskanaler omfatter en analysevindussending (110) for vindussending av en ramme (120) av tids-domeneaudioinngangssampler som befinner seg i en tidssekvens som strekker seg fra et tidlig sampel til et senere sampel ved å bruke en analysevindusfunksjon (190) som omfatter en sekvens av vinduskoeffisienter for å tilveiebringe vindussendte sampler. Analysevindusfunksjonen (190) omfatter en første gruppe (200) av vinduskøeffisienter og en andre gruppe (210) av vinduskoeffisienter. Den første gruppe (200) av vinduskoeffisienter blir brukt for vindussending av senere tids-domenesampler og den andre gruppe (210) av vinduskoeffisienter blir brukt for vindussending av tidligere tids-domenesampler. Apparatet (100) omfatter videre en kalkulator (170) for å beregne audiodelbåndsverdiene som bruker de vindussendte sampler.
NO20091951A 2006-10-25 2009-05-19 Apparat og fremgangsmåte for å generere audiosubbåndverdier, samt apparat og fremgangsmåte for å generere audioutvalg i tidsdomene NO341610B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US86295406P 2006-10-25 2006-10-25
PCT/EP2007/009199 WO2008049589A1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples

Publications (2)

Publication Number Publication Date
NO20091951L true NO20091951L (no) 2009-07-22
NO341610B1 NO341610B1 (no) 2017-12-11

Family

ID=39048961

Family Applications (3)

Application Number Title Priority Date Filing Date
NO20084012A NO341567B1 (no) 2006-10-25 2008-09-19 Apparat og fremgangsmåte for å generere audiobåndverdier, og apparat og fremgangsmåte for å generere audioutvalg i tidsdomene
NO20091951A NO341610B1 (no) 2006-10-25 2009-05-19 Apparat og fremgangsmåte for å generere audiosubbåndverdier, samt apparat og fremgangsmåte for å generere audioutvalg i tidsdomene
NO20170452A NO342691B1 (no) 2006-10-25 2017-03-23 Apparat og fremgangsmåte for å generere audiodelbåndsverdier, samt apparat og fremgangsmåte for å generere tidsdomeneaudiosampler

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NO20084012A NO341567B1 (no) 2006-10-25 2008-09-19 Apparat og fremgangsmåte for å generere audiobåndverdier, og apparat og fremgangsmåte for å generere audioutvalg i tidsdomene

Family Applications After (1)

Application Number Title Priority Date Filing Date
NO20170452A NO342691B1 (no) 2006-10-25 2017-03-23 Apparat og fremgangsmåte for å generere audiodelbåndsverdier, samt apparat og fremgangsmåte for å generere tidsdomeneaudiosampler

Country Status (25)

Country Link
US (12) US8452605B2 (no)
EP (10) EP4300825B1 (no)
JP (2) JP4936569B2 (no)
KR (2) KR101056253B1 (no)
CN (2) CN101606194B (no)
AR (2) AR063400A1 (no)
AT (1) ATE435480T1 (no)
AU (2) AU2007308415B2 (no)
BR (1) BRPI0709310B1 (no)
CA (2) CA2667505C (no)
DE (1) DE602007001460D1 (no)
DK (2) DK1994530T3 (no)
ES (10) ES2947516T3 (no)
FI (1) FI3848928T3 (no)
HU (5) HUE068022T2 (no)
IL (2) IL193786A (no)
MX (2) MX2009004477A (no)
MY (2) MY148715A (no)
NO (3) NO341567B1 (no)
PL (10) PL1994530T3 (no)
PT (5) PT3288027T (no)
RU (2) RU2420815C2 (no)
TW (2) TWI357065B (no)
WO (2) WO2008049590A1 (no)
ZA (2) ZA200810308B (no)

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