PL3570278T3 - Rekonstrukcja wysokiej częstotliwości wejściowego sygnału audio przy użyciu kaskadowych banków filtrów - Google Patents

Rekonstrukcja wysokiej częstotliwości wejściowego sygnału audio przy użyciu kaskadowych banków filtrów

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Publication number
PL3570278T3
PL3570278T3 PL19179788.5T PL19179788T PL3570278T3 PL 3570278 T3 PL3570278 T3 PL 3570278T3 PL 19179788 T PL19179788 T PL 19179788T PL 3570278 T3 PL3570278 T3 PL 3570278T3
Authority
PL
Poland
Prior art keywords
high frequency
audio signal
input audio
frequency reconstruction
filterbanks
Prior art date
Application number
PL19179788.5T
Other languages
English (en)
Inventor
Lars Villemoes
Per Ekstrand
Sascha Disch
Frederik Nagel
Stephan Wilde
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Dolby International Ab
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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 PL3570278T3 publication Critical patent/PL3570278T3/pl

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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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain
    • 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
    • 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
    • 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
    • G10L21/04—Time compression or expansion

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Auxiliary Devices For Music (AREA)
  • Networks Using Active Elements (AREA)
PL19179788.5T 2010-03-09 2011-03-04 Rekonstrukcja wysokiej częstotliwości wejściowego sygnału audio przy użyciu kaskadowych banków filtrów PL3570278T3 (pl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31212710P 2010-03-09 2010-03-09

Publications (1)

Publication Number Publication Date
PL3570278T3 true PL3570278T3 (pl) 2023-03-20

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Family Applications (2)

Application Number Title Priority Date Filing Date
PL19179788.5T PL3570278T3 (pl) 2010-03-09 2011-03-04 Rekonstrukcja wysokiej częstotliwości wejściowego sygnału audio przy użyciu kaskadowych banków filtrów
PL11715452T PL2545553T3 (pl) 2010-03-09 2011-03-04 Urządzenie i sposób do przetwarzania sygnału audio z użyciem zrównania granicy obszaru

Family Applications After (1)

Application Number Title Priority Date Filing Date
PL11715452T PL2545553T3 (pl) 2010-03-09 2011-03-04 Urządzenie i sposób do przetwarzania sygnału audio z użyciem zrównania granicy obszaru

Country Status (18)

Country Link
US (7) US9305557B2 (pl)
EP (4) EP3570278B1 (pl)
JP (2) JP5588025B2 (pl)
KR (2) KR101425154B1 (pl)
CN (2) CN103038819B (pl)
AR (2) AR080476A1 (pl)
AU (2) AU2011226211B2 (pl)
BR (5) BR112012022574B1 (pl)
CA (2) CA2792450C (pl)
ES (2) ES2935637T3 (pl)
HK (1) HK1181180A1 (pl)
MX (2) MX2012010416A (pl)
MY (1) MY154204A (pl)
PL (2) PL3570278T3 (pl)
RU (1) RU2586846C2 (pl)
SG (1) SG183967A1 (pl)
TW (2) TWI446337B (pl)
WO (2) WO2011110500A1 (pl)

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