发明名称 |
System and method for modifying speech signals |
摘要 |
A system and method for speech signal enhancement upsamples a narrowband speech signal at a receiver to generate a wideband speech signal. The lower frequency range of the wideband speech signal is reproduced using the received narrowband speech signal. The received narrowband speech signal is analyzed to determine its formants and pitch information. The upper frequency range of the wideband speech signal is synthesized using information derived from the received narrowband speech signal.
|
申请公布号 |
US2001044722(A1) |
申请公布日期 |
2001.11.22 |
申请号 |
US20010754993 |
申请日期 |
2001.01.05 |
申请人 |
GUSTAFSSON HARALD;LINDGREN ULF;THURBAN CLAS;DEUTGEN PETRA |
发明人 |
GUSTAFSSON HARALD;LINDGREN ULF;THURBAN CLAS;DEUTGEN PETRA |
分类号 |
G10L21/02;(IPC1-7):G10L13/00 |
主分类号 |
G10L21/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|