发明名称 |
CELP-Kodierung niedriger Verzögerung und 32 kbit/s für ein Breitband-Sprachsignal |
摘要 |
An improved digital communication system, e.g., a CELP code/decoder based system, is improved for use with a wide-band signal such as a high-quality speech signal by modifying the noise weighting filter used in such systems to include a filter section which affects primarily the spectral tilt of the weighting filter in addition to a filter component reflecting formant frequency information in the input signal. Alternatively, the weighting is modified to reflect perceptual transform techniques. <IMAGE> |
申请公布号 |
DE69132885(T2) |
申请公布日期 |
2002.08.01 |
申请号 |
DE1991632885T |
申请日期 |
1991.06.20 |
申请人 |
AT & T CORP., NEW YORK |
发明人 |
ORDENTLICH, ERIK;SHOHAM, YAIR |
分类号 |
G10L19/04;G10L19/00;G10L19/06;G10L19/12;G10L19/14;G10L21/02;(IPC1-7):G10L19/06 |
主分类号 |
G10L19/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|