公开(公告)号：US06704711B2

公开(公告)日：2004-03-09

申请号：US09754993

申请日：2001-01-05

申请人： Harald Gustafsson ,  Ulf Lindgren ,  Clas Thurban ,  Petra Deutgen

发明人： Harald Gustafsson ,  Ulf Lindgren ,  Clas Thurban ,  Petra Deutgen

IPC分类号： G10L1300

CPC分类号： G10L21/038

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.

摘要翻译： 用于语音信号增强的系统和方法在接收机处对窄带语音信号进行采样以产生宽带语音信号。 使用接收到的窄带语音信号来再现宽带语音信号的较低频率范围。 分析所接收的窄带语音信号以确定其共振峰和音调信息。 使用从接收的窄带语音信号导出的信息来合成宽带语音信号的上限频率范围。