公开(公告)号：US07065485B1

公开(公告)日：2006-06-20

申请号：US10042880

申请日：2002-01-09

申请人： Nicola R. Chong-White ,  Richard Vandervoort Cox

发明人： Nicola R. Chong-White ,  Richard Vandervoort Cox

IPC分类号： G10L11/06 ,  G10L19/00 ,  G10L21/00 ,  G10L13/06

CPC分类号： G10L21/04 ,  G10L21/0364

摘要： The method and preprocessor enhances the intelligibility of narrowband speech without essentially lengthening the overall time duration of the signal. Both spectral enhancements and variable-rate time-scaling procedures are implemented to improve the salience of initial consonants, particularly the perceptually important formant transitions. Emphasis is transferred from the dominating vowel to the preceding consonant through adaptation of the phoneme timing structure. In a further embodiment, the technique is applied as a preprocessor to a speech coder.

摘要翻译： 该方法和预处理器增强了窄带语音的可懂度，而基本上不延长信号的整个持续时间。 实现光谱增强和可变速率时间缩放程序以改善初始辅音的显着性，特别是感知上重要的共振峰转变。 通过调整音素时序结构，强调从主导元音转移到前面的辅音。 在另一实施例中，该技术作为预处理器应用于语音编码器。