Invention Grant
- Patent Title: Artifact reduction in packet loss concealment
- Patent Title (中): 减少丢包隐藏的人工制品
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Application No.: US12911314Application Date: 2010-10-25
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Publication No.: US09263049B2Publication Date: 2016-02-16
- Inventor: Eric David Elias
- Applicant: Eric David Elias
- Applicant Address: US CA San Jose
- Assignee: Polycom, Inc.
- Current Assignee: Polycom, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Blank Rome, LLP
- Main IPC: G10L19/005
- IPC: G10L19/005

Abstract:
Various techniques are disclosed for improving packet loss concealment to reduce artifacts by using audio character measures of the audio signal. These techniques include attenuation to a noise fill instead of attenuation to silence, varying how long to wait before attenuating the extrapolation, varying the rate of attenuation of the extrapolation, attenuating periodic extrapolation at a different rate than non-periodic extrapolation, and performing period extrapolation on successively longer fill data based on the audio character measures, adjusting weighting between periodic and non-periodic extrapolation based on the audio character measures, and adjusting weighting between periodic extrapolation and non-periodic extrapolation non-linearly.
Public/Granted literature
- US20120101814A1 Artifact Reduction in Packet Loss Concealment Public/Granted day:2012-04-26
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