发明名称 |
Speech processing apparatus and methods |
摘要 |
Speech processing apparatus and methods utilizing a circuit for electronically deriving from speech over time a series of coordinate values representing positions of points on a path in a mathematical space which path positions represent the speech. An electronic memory prestores phonetic representations in correspondence with indicia of a glide in the path which indicia represent a nucleus in the space at which the glide begins and a range of directions of offglide on the path from the nucleus. A trajectory parameter is electronically computed from the series of coordinate values. When both the trajectory parameter satisfies a predetermined condition for significance and a coordinate value currently reached by the speech is within a predetermined region of such values, a signal is produced. The speech on the path is electronically analyzed in response to the signal for occurrence of a position in the nucleus and an offglide in said range of directions which offglide happens before another significant trajectory parameter occurs. Upon occurrence of such indicia of a glide, the phonetic representation corresponding to the glide indicia is obtained from the electronic memory. Other apparatus and methods for producing a segmentation index signal representing the trajectory parameter are disclosed.
|
申请公布号 |
US4820059(A) |
申请公布日期 |
1989.04.11 |
申请号 |
US19870060246 |
申请日期 |
1987.06.09 |
申请人 |
CENTRAL INSTITUTE FOR THE DEAF |
发明人 |
MILLER, JAMES D.;CHANG, HISAO M. |
分类号 |
G10L15/04;(IPC1-7):G01L1/00 |
主分类号 |
G10L15/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|