AUDIO DECODER, APPARATUS FOR DETERMINING A SET OF VALUES DEFINING CHARACTERISTICS OF A FILTER, METHODS FOR PROVIDING A DECODED AUDIO REPRESENTATION, METHODS FOR DETERMINING A SET OF VALUES DEFINING CHARACTERISTICS OF A FILTER AND COMPUTER PROGRAM

AUDIO DECODER, APPARATUS FOR DETERMINING A SET OF VALUES DEFINING CHARACTERISTICS OF A FILTER, METHODS FOR PROVIDING A DECODED AUDIO REPRESENTATION, METHODS FOR DETERMINING A SET OF VALUES DEFINING CHARACTERISTICS OF A FILTER AND COMPUTER PROGRAM

An audio decoder for providing a decoded audio representation on the basis of an encoded audio representation includes a filter for providing an enhanced audio representation of the decoded audio representation. The filter is configured to obtain a plurality of scaling values, which are associated w...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KORSE, Srikanth, RAVELLI, Emmanuel, FUCHS, Guillaume
Format: Patent
Sprache:eng
Schlagworte:
ACOUSTICS
MUSICAL INSTRUMENTS
PHYSICS
SPEECH ANALYSIS OR SYNTHESIS
SPEECH OR AUDIO CODING OR DECODING
SPEECH OR VOICE PROCESSING
SPEECH RECOGNITION
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Beschreibung
Zusammenfassung:An audio decoder for providing a decoded audio representation on the basis of an encoded audio representation includes a filter for providing an enhanced audio representation of the decoded audio representation. The filter is configured to obtain a plurality of scaling values, which are associated with different frequency bins or frequency ranges, on the basis of spectral values of the decoded audio representation which are associated with different frequency bins or frequency ranges, and the filter is configured to scale spectral values of the decoded audio signal representation, or a pre-processed version thereof, using the scaling values, to obtain the enhanced audio representation. An apparatus for determining a set of values defining characteristics of a filter for providing an enhanced audio representation on the basis of a decoded audio representation is also described.