PL2545551T3 - Poprawiona charakterystyka amplitudowa i zrównanie czasowe w powiększaniu szerokości pasma na bazie wokodera fazowego dla sygnałów audio - Google Patents

Poprawiona charakterystyka amplitudowa i zrównanie czasowe w powiększaniu szerokości pasma na bazie wokodera fazowego dla sygnałów audio

Info

Publication number
PL2545551T3
PL2545551T3 PL11707156T PL11707156T PL2545551T3 PL 2545551 T3 PL2545551 T3 PL 2545551T3 PL 11707156 T PL11707156 T PL 11707156T PL 11707156 T PL11707156 T PL 11707156T PL 2545551 T3 PL2545551 T3 PL 2545551T3
Authority
PL
Poland
Prior art keywords
audio signals
bandwidth extension
magnitude response
temporal alignment
phase vocoder
Prior art date
Application number
PL11707156T
Other languages
English (en)
Inventor
Sascha Disch
Frederik Nagel
Stephan Wilde
Lars Villemoes
Per Ekstrand
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Dolby International Ab
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-Gesellschaft zur Förderung der angewandten Forschung e.V., Dolby International Ab filed Critical Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Publication of PL2545551T3 publication Critical patent/PL2545551T3/pl

Links

Classifications

    • 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
    • G10L19/0208Subband vocoders
    • 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
    • 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
    • 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
    • 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
    • G10L19/04Speech 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
    • G10L19/16Vocoder architecture
    • 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
    • G10L19/04Speech 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
    • G10L19/26Pre-filtering or post-filtering

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Circuit For Audible Band Transducer (AREA)
PL11707156T 2010-03-09 2011-03-04 Poprawiona charakterystyka amplitudowa i zrównanie czasowe w powiększaniu szerokości pasma na bazie wokodera fazowego dla sygnałów audio PL2545551T3 (pl)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US31211810P 2010-03-09 2010-03-09
EP11707156.3A EP2545551B1 (en) 2010-03-09 2011-03-04 Improved magnitude response and temporal alignment in phase vocoder based bandwidth extension for audio signals
PCT/EP2011/053298 WO2011110494A1 (en) 2010-03-09 2011-03-04 Improved magnitude response and temporal alignment in phase vocoder based bandwidth extension for audio signals

Publications (1)

Publication Number Publication Date
PL2545551T3 true PL2545551T3 (pl) 2018-03-30

Family

ID=43829366

Family Applications (1)

Application Number Title Priority Date Filing Date
PL11707156T PL2545551T3 (pl) 2010-03-09 2011-03-04 Poprawiona charakterystyka amplitudowa i zrównanie czasowe w powiększaniu szerokości pasma na bazie wokodera fazowego dla sygnałów audio

Country Status (17)

Country Link
US (2) US9318127B2 (pl)
EP (1) EP2545551B1 (pl)
JP (1) JP5854520B2 (pl)
KR (1) KR101483157B1 (pl)
CN (1) CN102985970B (pl)
AR (1) AR080475A1 (pl)
BR (1) BR112012022745B1 (pl)
CA (1) CA2792449C (pl)
ES (1) ES2655085T3 (pl)
MX (1) MX2012010314A (pl)
MY (1) MY152376A (pl)
PL (1) PL2545551T3 (pl)
PT (1) PT2545551T (pl)
RU (1) RU2596033C2 (pl)
SG (1) SG183966A1 (pl)
TW (1) TWI425501B (pl)
WO (1) WO2011110494A1 (pl)

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Also Published As

Publication number Publication date
TW201207844A (en) 2012-02-16
CN102985970A (zh) 2013-03-20
US9318127B2 (en) 2016-04-19
JP2013521536A (ja) 2013-06-10
US20160267917A1 (en) 2016-09-15
AR080475A1 (es) 2012-04-11
SG183966A1 (en) 2012-10-30
EP2545551B1 (en) 2017-10-04
MY152376A (en) 2014-09-15
RU2596033C2 (ru) 2016-08-27
BR112012022745A2 (pt) 2018-06-05
KR101483157B1 (ko) 2015-01-15
EP2545551A1 (en) 2013-01-16
AU2011226206A1 (en) 2012-10-18
WO2011110494A1 (en) 2011-09-15
MX2012010314A (es) 2012-09-28
CA2792449A1 (en) 2011-09-15
ES2655085T3 (es) 2018-02-16
AU2011226206B2 (en) 2013-12-19
JP5854520B2 (ja) 2016-02-09
US9905235B2 (en) 2018-02-27
TWI425501B (zh) 2014-02-01
KR20130007598A (ko) 2013-01-18
CN102985970B (zh) 2014-11-05
RU2012142246A (ru) 2014-04-20
BR112012022745B1 (pt) 2020-11-10
US20130058498A1 (en) 2013-03-07
PT2545551T (pt) 2018-01-03
CA2792449C (en) 2017-12-05

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