公开(公告)号：US5056150A

公开(公告)日：1991-10-08

申请号：US433098

申请日：1989-11-08

Applicant: Tiecheng Yu ,  Ning Bi ,  Meiling Rong ,  Enyao Zhang

Inventor： Tiecheng Yu ,  Ning Bi ,  Meiling Rong ,  Enyao Zhang

IPC: G10L15/08 ,  G10L15/10 ,  G10L25/87

CPC classification number: G10L15/10 ,  G10L25/87

Abstract: 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.

Abstract translation: 一种具有或不具有扬声器依赖性的实时语音识别的方法和装置，包括以下步骤。 将语音信号转换为一系列原始声谱参数帧; 根据原始声谱参数帧检测语音的开始和结束，确定声谱参数帧序列; 使用声音刺激对声谱参数帧序列进行非线性时域归一化，获得时域上具有预定长度的语音特征参数帧序列; 对语音特征参数帧执行振幅量化归一化; 将语音特征参数帧序列与参考样本进行比较，确定与语音特征参数帧序列最匹配的参考样本; 并根据最接近匹配的参考样本确定识别结果。