Invention Grant
- Patent Title: Very short pitch detection and coding
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Application No.: US17667891Application Date: 2022-02-09
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Publication No.: US11894007B2Publication Date: 2024-02-06
- Inventor: Yang Gao , Fengyan Qi
- Applicant: Huawei Technologies Co., Ltd.
- Applicant Address: CN Shenzhen
- Assignee: HUAWEI TECHNOLOGIES CO., LTD.
- Current Assignee: HUAWEI TECHNOLOGIES CO., LTD.
- Current Assignee Address: CN Shenzhen
- Agency: Conley Rose, P.C.
- Main IPC: G10L21/00
- IPC: G10L21/00 ; G10L21/003 ; G10L25/21 ; G10L25/06 ; G10L25/90 ; G10L19/00 ; G10L19/09

Abstract:
A method includes 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 a time domain and detecting a lack of low frequency energy in the speech or audio signal in a 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.
Public/Granted literature
- US20220230647A1 Very Short Pitch Detection and Coding Public/Granted day:2022-07-21
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