发明名称 |
Communication system and method using a speaker dependent time-scaling technique |
摘要 |
A method and apparatus for time-scale modification of speech using a modified version of the Waveform Similarity based Overlap-Add technique (WSOLA) comprises the steps of storing a portion of an input speech signal in a memory, analyzing the portion of the input speech signal to determined at least one filtered pitch value, calculating an estimated pitch value (12) from the at least one filtered pitch value, determining a segment size (14) in response to the estimated pitch value (12), the segment size (14) having a value greater than the estimated pitch value (12), and time-scale compressing (18) the input speech signal in response to the segment size determined.
|
申请公布号 |
US5920840(A) |
申请公布日期 |
1999.07.06 |
申请号 |
US19950395739 |
申请日期 |
1995.02.28 |
申请人 |
MOTOROLA, INC. |
发明人 |
SATYAMURTI, SUNIL;LEITCH, CLIFFORD DANA;SCHWENDEMAN, ROBERT JOHN;SIWIAK, KAZIMIERZ;KUZNICKI, WILLIAM JOSEPH |
分类号 |
G10L11/04;G10L19/00;G10L21/04;H04Q7/06;H04Q7/08;H04Q7/12;(IPC1-7):G10L3/02 |
主分类号 |
G10L11/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|