| Presentation | 1998/9/11 A New LSP Coding Method Using Ergodic HMM with Exceptional Quantization of Segment Edges. Junsei SATO, Minoru KOHATA, Motoyuki SUZUKI, Shozo MAKINO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A very low bit rate coding method of LPC using ergodic HMM is newly proposed. In this system, ergodic HMM is used to interpolate LSP coefficiets which is segmented, and the optimal state sequence is searched which minimizes the distortion. In order to decrease the distortion, the proposed model quantizes the frame on the segment edge with VQ, and other frames are restored by using Ergodic HMM. And in order to reduce the bit rate with little increase of distortion, the arcs of the HMM are pruned. In this paper, several experiments were carried out to evaluate the basic ability of the proposed method. As a result, the proposed method was able to quantize LSP coefficients at 514 bps, where the cepstral distortion was 2.39 dB. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Very low bit speech coding / Ergodic HMM / VQ / pruning |
| Paper # | DSP98-83,SP98-62 |
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| Conference Information | |
| Committee | DSP |
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| Conference Date | 1998/9/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Digital Signal Processing (DSP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A New LSP Coding Method Using Ergodic HMM with Exceptional Quantization of Segment Edges. |
| Sub Title (in English) | |
| Keyword(1) | Very low bit speech coding |
| Keyword(2) | Ergodic HMM |
| Keyword(3) | VQ |
| Keyword(4) | pruning |
| 1st Author's Name | Junsei SATO |
| 1st Author's Affiliation | Graduate School of Engineering, Tohoku University() |
| 2nd Author's Name | Minoru KOHATA |
| 2nd Author's Affiliation | Department of Information network, Chiba Institute of Technology |
| 3rd Author's Name | Motoyuki SUZUKI |
| 3rd Author's Affiliation | Graduate School of Information Sciences, Tohoku University |
| 4th Author's Name | Shozo MAKINO |
| 4th Author's Affiliation | Graduate School of Information Sciences, Tohoku University |
| Date | 1998/9/11 |
| Paper # | DSP98-83,SP98-62 |
| Volume (vol) | vol.98 |
| Number (no) | 262 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |