Title:
FRAME LOSS COMPENSATION PROCESSING METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/166800
Kind Code:
A1
Abstract:
A frame loss compensation processing method and device. The method comprises: determining whether an ith frame is a lost frame according to a lost frame marker bit (101); if the ith frame is a lost frame, estimating a spectral frequency parameter, a pitch period, and a gain of the ith frame according to at least one of an inter-frame relationship between N frames preceding the ith frame and intra-frame relationships of the N frames (102). The inter-frame relationship between the preceding N frames comprises at least one of correlation and energy stability of the N frames, and the intra-frame relationships of the preceding N frames comprise at least one of correlations and energy stabilities of sub-frames of the preceding N frames. By determining the parameter of the ith frame according to the signal correlation and energy stability of the preceding N frames and the intra-frame signal correlation and energy stability of each frame, the relationship between signals is considered, so that the estimated parameter of the ith frame is more accurate, thereby improving the quality of a decoding voice signal.
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Inventors:
LIU ZEXIN (CN)
ZHANG XINGTAO (CN)
WANG BIN (CN)
MIAO LEI (CN)
ZHANG XINGTAO (CN)
WANG BIN (CN)
MIAO LEI (CN)
Application Number:
PCT/CN2016/103481
Publication Date:
October 05, 2017
Filing Date:
October 27, 2016
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G10L19/005
Domestic Patent References:
| WO2015063044A1 | 2015-05-07 |
Foreign References:
| CN1441950A | 2003-09-10 | |||
| CN104718570A | 2015-06-17 | |||
| CN104299614A | 2015-01-21 | |||
| CN102158783A | 2011-08-17 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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