Invention Grant
US08589151B2 Vocoder and associated method that transcodes between mixed excitation linear prediction (MELP) vocoders with different speech frame rates
有权
声码器和相关方法，用于在具有不同语音帧速率的混合激励线性预测（MELP）声码器之间进行转码
- Patent Title: Vocoder and associated method that transcodes between mixed excitation linear prediction (MELP) vocoders with different speech frame rates
- Patent Title (中): 声码器和相关方法，用于在具有不同语音帧速率的混合激励线性预测（MELP）声码器之间进行转码
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Application No.: US11425437Application Date: 2006-06-21
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Publication No.: US08589151B2Publication Date: 2013-11-19
- Inventor: Mark W. Chamberlain
- Applicant: Mark W. Chamberlain
- Applicant Address: US FL Melbourne
- Assignee: Harris Corporation
- Current Assignee: Harris Corporation
- Current Assignee Address: US FL Melbourne
- Agency: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- Main IPC: G10L19/04
- IPC: G10L19/04 ; G01L19/00 ; G01L19/02 ; G10L21/00
Abstract:
A vocoder and method transcodes Mixed Excitation Linear Prediction (MELP) encoded data for use at different speech frame rates. Input data is converted into MELP parameters such as used by a first MELP vocoder. These parameters are buffered and a time interpolation is performed on the parameters with quantization to predict spaced points. An encoding function is performed on the interpolated data as a block to produce a reduction in bit-rate as used by a second MELP vocoder at a different speech frame rate than the first MELP vocoder.
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