Invention Grant
- Patent Title: Frame loss correction with voice information
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Application No.: US15303405Application Date: 2015-04-24
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Publication No.: US10431226B2Publication Date: 2019-10-01
- Inventor: Julien Faure , Stephane Ragot
- Applicant: ORANGE
- Applicant Address: FR Paris
- Assignee: ORANGE
- Current Assignee: ORANGE
- Current Assignee Address: FR Paris
- Agency: Drinker Biddle & Reath LLP
- Priority: FR1453912 20140430
- International Application: PCT/FR2015/051127 WO 20150424
- International Announcement: WO2015/166175 WO 20151105
- Main IPC: G10L19/20
- IPC: G10L19/20 ; G10L25/81 ; G10L25/93 ; G10L19/005 ; G10L19/028

Abstract:
A method for processing a digital audio signal, including a series of samples distributed in consecutive frames, is implemented when decoding the signal in order to replace at least one signal frame lost during decoding. The method includes the following steps: a) searching, in a valid signal segment available when decoding, for at least one period in the signal, determined in accordance with the valid signal; b) analyzing the signal in the period, in order to determine spectral components of the signal in the period; c) synthesizing at least one frame for replacing the lost frame, by construction of a synthesis signal from: an addition of components selected among the predetermined spectral components, and a noise added to the addition of components. In particular, the amount of noise added to the addition of components is weighted in accordance with voice information of the valid signal, obtained when decoding.
Public/Granted literature
- US20170040021A1 IMPROVED FRAME LOSS CORRECTION WITH VOICE INFORMATION Public/Granted day:2017-02-09
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