专利详情

专利名称	METHOD AND APPARATUS FOR REAL TIME SPEECH RECOGNITION WITH AND WITHOUT SPEAKER DEPENDENCY
申请号	US19890433098	专利类型	US
公开（公告）号	US5056150	公开（授权）日	1991.10.08
申请（专利权）人	中国科学院声学研究所	发明（设计）人	YU TIECHENG (CN); BI NING (CN); RONG MEILING (CN); ZHANG ENYAO (CN)
主分类号	G10L5/00	IPC主分类号	G10L5/00
专利有效期	METHOD AND APPARATUS FOR REAL TIME SPEECH RECOGNITION WITH AND WITHOUT SPEAKER DEPENDENCY 至METHOD AND APPARATUS FOR REAL TIME SPEECH RECOGNITION WITH AND WITHOUT SPEAKER DEPENDENCY	法律状态
说明书摘要	A method and apparatus for real time speech recognition with and without speaker dependency which includes the following steps. Converting the speech signals into a series of primitive sound spectrum parameter frames; detecting the beginning and ending of speech according to the primitive sound spectrum parameter frame, to determine the sound spectrum parameter frame series; performing non-linear time domain normalization on the sound spectrum parameter frame series using sound stimuli, to obtain speech characteristic parameter frame series with predefined lengths on the time domain; performing amplitude quantization normalization on the speech characteristic parameter frames; comparing the speech characteristic parameter frame series with the reference samples, to determine the reference sample which most closely matches the speech characteristic parameter frame series; and determining the recognition result according to the most closely matched reference sample.