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Title
Audio decoder supporting a set of different loss concealment tools
Date Issued
2019
Author(s)
Tomasek, Adrian
Ravelli, Emmanuel
Schnabel, Michael
Patent No
3483878
Abstract
An assignment of one of phase set of different loss concealment tools of an audio decoder to a portion of the audio signal to be decoded from a data stream, which portion is affected by loss, that is the selection out of the set of different loss concealment tools, may be made in a manner leading to a more pleasant loss concealment if the assignment/selection is done based on two measures: A first measure which is determined measures a spectral position of a spectral centroid of a spectrum of the audio signal and a second measure which is determined measures a temporal predictability of the audio signal. The assigned or selected loss concealment tool may then be used to recover the portion of the audio signal.
Language
en
Patenprio
EP 3483878 A1: 20171110