AUDIO DECODER AND METHOD FOR PROVIDING A DECODED AUDIO INFORMATION USING AN ERROR CONCEALMENT MODIFYING A TIME DOMAIN EXCITATION SIGNAL

AUDIO DECODER AND METHOD FOR PROVIDING A DECODED AUDIO INFORMATION USING AN ERROR CONCEALMENT MODIFYING A TIME DOMAIN EXCITATION SIGNAL

An audio decoder (200; 400) for providing a decoded audio information (220; 412) on the basis of an encoded audio information (210;410). The audio decoder comprises an error concealment (240; 480; 600) configured to provide an error concealment audio information (242;482;612) for concealing a loss o...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: Lecomte, Jérémie
Format: Patent
Sprache:eng ; fre ; ger
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 (200; 400) for providing a decoded audio information (220; 412) on the basis of an encoded audio information (210;410). The audio decoder comprises an error concealment (240; 480; 600) configured to provide an error concealment audio information (242;482;612) for concealing a loss of an audio frame, wherein the error concealment is configured to modify a time domain excitation signal (452,456;610) obtained for one or more audio frames preceding a lost audio frame, in order to obtain the error concealment audio information.