- Patent Title: Error concealment unit, audio decoder, and related method and computer program using characteristics of a decoded representation of a properly decoded audio frame
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Application No.: US16123427Application Date: 2018-09-06
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Publication No.: US10937432B2Publication Date: 2021-03-02
- Inventor: Jérémie Lecomte , Adrian Tomasek
- Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Applicant Address: DE Munich
- Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee Address: DE Munich
- Agency: Dicke, Billig & Czaja, PLLC
- Priority: EP16159033 20160307,EP16171444 20160525
- Main IPC: G10L19/00
- IPC: G10L19/00 ; G10L19/005 ; G10L19/022

Abstract:
There is provided an error concealment unit, method, and computer program, for providing an error concealment audio information for concealing a loss of an audio frame in an encoded audio information. In one embodiment, the error concealment unit provides an error concealment audio information for a lost audio frame on the basis of a properly decoded audio frame preceding the lost audio frame. The error concealment unit derives a damping factor on the basis of characteristics of a decoded representation of the properly decoded audio frame preceding the lost audio frame. The error concealment unit performs a fade out using the damping factor.
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