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Isolated-Word Speech Recognition in Telephone Environment Using Perceptual Auditory Characteristic  

Choi, Hyung-Ki (Dept. of Electronic Eng. Chonbuk National University)
Park, Ki-Young (Dept. of Information & Communication Eng. Jeonju Technical College)
Kim, Chong-Kyo (Dept. of Electrical & Control Eng. Chonbuk National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TE / v.39, no.2, 2002 , pp. 60-65 More about this Journal
Abstract
In this paper, we propose GFCC(gammatone filter frequency cepstrum coefficient) parameter which was based on the auditory characteristic for accomplishing better speech recognition rate. And it is performed the experiment of speech recognition for isolated word acquired from telephone network. For the purpose of comparing GFCC parameter with other parameter, the experiment of speech recognition are carried out using MFCC and LPCC parameter. Also, for each parameter, we are implemented CMS(cepstral mean subtraction)which was applied or not in order to compensate channel distortion in telephone network. Accordingly, we found that the recognition rate using GFCC parameter is better than other parameter in the experimental result.
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