| Presentation | 2001/12/13 An Effect of Pitch Fluctuation on Noise-Robust Speech Recognition Kiyoaki AIKAWA, Kentaro ISHIZUKA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This report proposes a new noise-robust spectral estimation method called PHASOR. The new method is motivated by the effect of pitch fluctuation on noisy speech perception. The PHASOR estimates speech spectrum from a single pitch period of speech signal obtained by summing multiple pitch periods in a frame, whereas conventional method uses the whole signal in the frame. PHASOR suppresses the effect of additive noises. Speaker-dependent and speaker-independent phoneme recognition experiments demonstrate that the PHASOR greatly reduces the phoneme recognition error rate for noisy speech data. The PHASOR also outperforms conventional noise reduction methods, cepstral mean normalization and spectral subtraction. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | noise-robust / speech recognition / pitch / synchronous / spectral analysis |
| Paper # | NLC2001-59,SP2001-94 |
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| Conference Information | |
| Committee | SP |
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| Conference Date | 2001/12/13(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Assistant | |
| Paper Information | |
| 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) | An Effect of Pitch Fluctuation on Noise-Robust Speech Recognition |
| Sub Title (in English) | |
| Keyword(1) | noise-robust |
| Keyword(2) | speech recognition |
| Keyword(3) | pitch |
| Keyword(4) | synchronous |
| Keyword(5) | spectral analysis |
| 1st Author's Name | Kiyoaki AIKAWA |
| 1st Author's Affiliation | NTT Communication Science Laboratories, NTT Corporation() |
| 2nd Author's Name | Kentaro ISHIZUKA |
| 2nd Author's Affiliation | NTT Communication Science Laboratories, NTT Corporation |
| Date | 2001/12/13 |
| Paper # | NLC2001-59,SP2001-94 |
| Volume (vol) | vol.101 |
| Number (no) | 522 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |