Invention Grant
- Patent Title: Transmission error concealment in audio signal
- Patent Title (中): 传输错误隐藏在音频信号中
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Application No.: US12462763Application Date: 2009-08-07
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Publication No.: US08239192B2Publication Date: 2012-08-07
- Inventor: Balazs Kovesi , Dominique Massaloux , David Deleam
- Applicant: Balazs Kovesi , Dominique Massaloux , David Deleam
- Applicant Address: FR Paris
- Assignee: France Telecom
- Current Assignee: France Telecom
- Current Assignee Address: FR Paris
- Agency: Cozen O'Connor
- Priority: FR0011285 20000905
- Main IPC: G10L19/00
- IPC: G10L19/00

Abstract:
A method of concealing transmission error in a digital audio signal, wherein a signal that has been decoded after transmission is received, the samples decoded while the transmitted data is valid are stored, at least one short-term prediction operator and one long-term prediction operator are estimated as a function of stored valid samples, and any missing or erroneous samples in the decoder signal are generated using the estimated operators. The energy of the synthesized signal that is thus generated is controlled by means of a gain that is computed and adapted sample by sample.
Public/Granted literature
- US20100070271A1 Transmission error concealment in audio signal Public/Granted day:2010-03-18
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