Isolated-word recognition with filter bank using mora position and mora length

摘要

In isolated-word recognition using cepstrum, the influence of pitch is divided by using more information, and it is known that it is possible to improve recognition accuracy. In this paper, we notice that effective information for recognition is included in pitch, and we examined how to use the information on pitch directly. If cepstrum is used, formant and pitch is divided, and the information on a pitch cannot be used. In this paper, I considered use of power spectrum. Then, we performed isolated-word recognition that was used Mel Filter Bank instead of cepstrum. Consequently, we found that recognition accuracy improved to many speakers.