发明名称 |
Method and system for speech processing with greatly reduced harmonic and intermodulation distortion |
摘要 |
A method and system for representing speech with greatly reduced harmonic and intermodulation distortion using a fixed interval scale, known as Tru-Scale. Speech is reproduced in accordance with a frequency matrix which reduces intermodulation interference and harmonic distortion (overtone collision). Enhanced speech quality and reduced noise results from increasing the signal-to-noise ratio in the processed speech signal. The method and system use an Auto-Regressive (AR) modeling technique, using, among other approaches, Linear Predictive Coding (LPC) analysis. In accordance with another aspect of the invention, a Fourier transform-based modeling technique also is used. The application of the system to speech coders also is contemplated.
|
申请公布号 |
US6003000(A) |
申请公布日期 |
1999.12.14 |
申请号 |
US19970848637 |
申请日期 |
1997.04.29 |
申请人 |
META-C CORPORATION |
发明人 |
OZZIMO, MICHELE L.;COBB, MATTHEW C.;DINNAN, JAMES A. |
分类号 |
G10L19/06;G10L19/14;(IPC1-7):G10L3/02 |
主分类号 |
G10L19/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|