Presentation | 2000/9/22 Evaluation on Mel-LPC Analysis by a Large Vocabulary Continuous Speech Recognition Masanori Moroto, Hiroshi Matsumoto, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | This paper presents a simple and efficient time domain technique to estimate all-poll model on mel-frequency axis(Mel-LPC), and evaluates the performance in the large vocabulary continuous speech recognition with 114 monosyllable HMMs. Firstly, the optimal value of frequency warping factor is examined through monosyllable accuracies in a 20,000 vocabulary recognition without language models. The optimal value at the sampling frequency of 16kHz is 0.60 for male speaker and 0.40 for female speaker, respectively. With language models, Mel-LPC cepstrum attains the word accuracies of 93.0% for male speakers and 93.1% for female speakers, which are 2.1% and 1.7% higher than those of the LPC mel-cepstrum, respectively. This performance is slightly superior to that of MFCC. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Mel-LPC / mel-cepstrum / dictation system / monosyllable HMM |
Paper # | DSP2000-96,SP2000-62 |
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Committee | SP |
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Conference Date | 2000/9/22(1days) |
Place (in Japanese) | (See Japanese page) |
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Topics (in Japanese) | (See Japanese page) |
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Registration To | Speech (SP) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Evaluation on Mel-LPC Analysis by a Large Vocabulary Continuous Speech Recognition |
Sub Title (in English) | |
Keyword(1) | Mel-LPC |
Keyword(2) | mel-cepstrum |
Keyword(3) | dictation system |
Keyword(4) | monosyllable HMM |
1st Author's Name | Masanori Moroto |
1st Author's Affiliation | Faculty of Engineering, Shinshu University() |
2nd Author's Name | Hiroshi Matsumoto |
2nd Author's Affiliation | Faculty of Engineering, Shinshu University |
Date | 2000/9/22 |
Paper # | DSP2000-96,SP2000-62 |
Volume (vol) | vol.100 |
Number (no) | 328 |
Page | pp.pp.- |
#Pages | 8 |
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