Enhanced Human-Computer Speech Interface Using Wavelet Computing

被引：0
|
作者：
Ayat, Saeed [1 ]
机构：
[1] Payame Noor Univ, Dept Informat Technol, Najafabad, Iran
来源：
2008 IEEE INTERNATIONAL CONFERENCE ON VIRTUAL ENVIRONMENTS, HUMAN-COMPUTER INTERFACES AND MEASUREMENT SYSTEMS | 2008年
关键词：
speech enhancement; waveshrink; threshold selection; shrink function;
D O I：
10.1109/VECIMS.2008.4592749
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we design an enhanced human-computer speech interface by wavelet transform. By using a new thresholding algorithm and shrink function, we improve the efficiency of the speech interface. This shrink function tries to decrease sharp time-frequency spectrogram discontinuities by attenuating the wavelet coefficients instead of setting them to zero. This attenuation will be done regarding to the wavelet coefficients distance from the threshold. By applying a lot of tests we evaluated our system for three different languages. The results confirmed the improvement in performances and achievements of our system.
引用
收藏
页码：37 / 40
页数：4
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