| Presentation | 2005/7/14 A New Segment Quantizer Using Lempel-Ziv Algorithm 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) | In this study, a new segment quantization (SQ) method is proposed, which is based upon Lempel-Ziv algorithm, and it is applied to quantize LSP coefficients of speech signal. By using the proposed method, we can design a segment codebook whose rate-distortion characteristic is better than that of an ordinary VQ, or SQ. The proposed quantizer is compared with other practical coders such as the G.729 and the MELP, by substituting those original LSF quantizers with the proposed segment quantizer. As a result, at the same spectral distortion, nine bits per frame were saved compared with the scalar quantizer of the MELP (25 bits/frame), and four bits per frame were saved compared with the MA prediction VQ of the G.729 (18bits/frame), respectively. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Low bit speech coding / Lempel-Ziv algorithm / LSP coefficients / Segment quantization |
| Paper # | SP2005-35 |
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| Conference Information | |
| Committee | SP |
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| Conference Date | 2005/7/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| 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) | A New Segment Quantizer Using Lempel-Ziv Algorithm |
| Sub Title (in English) | |
| Keyword(1) | Low bit speech coding |
| Keyword(2) | Lempel-Ziv algorithm |
| Keyword(3) | LSP coefficients |
| Keyword(4) | Segment quantization |
| 1st Author's Name | Minoru KOHATA |
| 1st Author's Affiliation | Faculty of Information and Computer Science, Chiba Institute of Technology() |
| 2nd Author's Name | Motoyuki SUZUKI |
| 2nd Author's Affiliation | Graduate School of Engineering, Tohoku University |
| 3rd Author's Name | Shozo MAKINO |
| 3rd Author's Affiliation | Graduate School of Engineering, Tohoku University |
| Date | 2005/7/14 |
| Paper # | SP2005-35 |
| Volume (vol) | vol.105 |
| Number (no) | 198 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |