Invention Grant
- Patent Title: Apparatus and method for audio frame loss recovery
- Patent Title (中): 音频帧丢失恢复的装置和方法
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Application No.: US13545277Application Date: 2012-07-10
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Publication No.: US09053699B2Publication Date: 2015-06-09
- Inventor: Udar Mittal , James P. Ashley
- Applicant: Udar Mittal , James P. Ashley
- Applicant Address: US CA Mountain View
- Assignee: GOOGLE TECHNOLOGY HOLDINGS LLC
- Current Assignee: GOOGLE TECHNOLOGY HOLDINGS LLC
- Current Assignee Address: US CA Mountain View
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Main IPC: G10L19/00
- IPC: G10L19/00 ; G10L19/005 ; G10L19/20

Abstract:
A method and apparatus provide for audio frame recovery by identifying a sequence of lost frames of coded audio data as being lost or corrupted; identifying a first frame of coded audio data which immediately preceded the sequence of lost frames, as having been encoded using a time domain coding method; identifying a second frame of coded audio data, which immediately followed the sequence of lost frames of coded audio data, as having been encoded using a transform domain coding method; obtaining a pitch delay; generating a second decoded audio portion of the second frame based on the second frame; generating a first decoded audio portion of the second frame based on the pitch delay and decoded audio samples; and generating a decoded audio output of the second frame based on a sequential combination of the first and second decoded audio portions.
Public/Granted literature
- US20140019142A1 APPARATUS AND METHOD FOR AUDIO FRAME LOSS RECOVERY Public/Granted day:2014-01-16
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