- 专利标题: Very short pitch detection and coding
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申请号: US15662302申请日: 2017-07-28
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公开(公告)号: US10482892B2公开(公告)日: 2019-11-19
- 发明人: Yang Gao , Fengyan Qi
- 申请人: HUAWEI TECHNOLOGIES CO.,LTD.
- 申请人地址: CN Shenzhen
- 专利权人: HUAWEI TECHNOLOGIES CO., LTD.
- 当前专利权人: HUAWEI TECHNOLOGIES CO., LTD.
- 当前专利权人地址: CN Shenzhen
- 代理机构: Huawei Technologies Co., Ltd.
- 主分类号: G10L25/00
- IPC分类号: G10L25/00 ; G10L21/003 ; G10L25/90 ; G10L25/21 ; G10L25/06 ; G10L19/00 ; G10L19/09
摘要:
System and method embodiments are provided for very short pitch detection and coding for speech or audio signals. The system and method include detecting whether there is a very short pitch lag in a speech or audio signal that is shorter than a conventional minimum pitch limitation using a combination of time domain and frequency domain pitch detection techniques. The pitch detection techniques include using pitch correlations in time domain and detecting a lack of low frequency energy in the speech or audio signal in frequency domain. The detected very short pitch lag is coded using a pitch range from a predetermined minimum very short pitch limitation that is smaller than the conventional minimum pitch limitation.
公开/授权文献
- US20170323652A1 VERY SHORT PITCH DETECTION AND CODING 公开/授权日:2017-11-09
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