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Apparatus and method for encoding or decoding an audio signal with intelligent gap filling in the spectral domain

 
: Bayer, Stefan

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Frontpage ()

EP 20130177353 : 20130722
EP 2830054 A1: 20150128
EP 2830056 A1: 20150128
Englisch
Patent, Elektronische Publikation
Fraunhofer IIS ()

Abstract
Source: WO15010954A1 [EN] An apparatus for decoding an encoded audio signal, comprises: a spectral domain audio decoder (602) for generating a first decoded representation of a first set of first spectral portions being spectral prediction residual values; a frequency regenerator (604) for generating a reconstructed second spectral portion using a first spectral portion of the first set of first spectral portions, wherein the reconstructed second spectral portion additionally comprises spectral prediction residual values; and an inverse prediction filter (606) for performing an inverse prediction over frequency using the spectral residual values for the first set of first spectral portions and the reconstructed second spectral portion using prediction filter information (607) included in the encoded audio signal.

: http://publica.fraunhofer.de/dokumente/N-337455.html