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1. WO2020094263 - APPARATUS AND AUDIO SIGNAL PROCESSOR, FOR PROVIDING A PROCESSED AUDIO SIGNAL REPRESENTATION, AUDIO DECODER, AUDIO ENCODER, METHODS AND COMPUTER PROGRAMS

Publication Number WO/2020/094263
Publication Date 14.05.2020
International Application No. PCT/EP2019/063693
International Filing Date 27.05.2019
IPC
G10L 19/022 2013.01
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
19Speech or audio signal 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
02using spectral analysis, e.g. transform vocoders or subband vocoders
022Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
G10L 25/45 2013.01
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
25Speech or voice analysis techniques not restricted to a single one of groups G10L15/-G10L21/129
45characterised by the type of analysis window
G10L 19/008 2013.01
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
19Speech or audio signal 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
008Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
Applicants
  • FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. [DE]/[DE]
Inventors
  • BAYER, Stefan
  • MABEN, Pallavi
  • RAVELLI, Emmanuel
  • FUCHS, Guillaume
  • FOTOPOULOU, Eleni
  • MULTRUS, Markus
Agents
  • BURGER, Markus
  • ZIMMERMANN, Tankred
  • STÖCKELER, Ferdinand
  • ZINKLER, Franz
  • SCHENK, Markus
  • HERSINA, Günter
  • SCHAIRER, Oliver
  • SCHLENKER, Julian
  • PFITZNER, Hannes
  • KÖNIG, Andreas
Priority Data
18204445.305.11.2018EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS AND AUDIO SIGNAL PROCESSOR, FOR PROVIDING A PROCESSED AUDIO SIGNAL REPRESENTATION, AUDIO DECODER, AUDIO ENCODER, METHODS AND COMPUTER PROGRAMS
(FR) APPAREIL ET PROCESSEUR DE SIGNAL AUDIO, POUR FOURNIR UNE REPRÉSENTATION DE SIGNAL AUDIO TRAITÉ, DÉCODEUR AUDIO, CODEUR AUDIO, PROCÉDÉS ET PROGRAMMES INFORMATIQUES
Abstract
(EN)
An apparatus for providing a processed audio signal representation on the basis of input audio signal representation configured to apply an un-windowing, in order to provide the processed audio signal representation on the basis of the input audio signal representation. The apparatus is configured to adapt the un-windowing in dependence on one or more signal characteristics and/or in dependence on one or more processing parameters used for a provision of the input audio signal representation.
(FR)
L'invention concerne un appareil pour fournir une représentation de signal audio traité sur la base d'une représentation de signal audio d'entrée configuré pour appliquer un non-fenêtrage, afin de fournir la représentation de signal audio traité sur la base de la représentation de signal audio d'entrée. L'appareil est configuré pour adapter le non-fenêtrage en fonction d'une ou de plusieurs caractéristiques de signal et/ou en fonction d'un ou de plusieurs paramètres de traitement utilisés pour une fourniture de la représentation de signal audio d'entrée.
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