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| Paper Abstract and Keywords | ||
| Presentation | 2010-01-22 10:30 Multi-layer Speech Coding Using Combination of Modes Based on Sparseness of Input Spectrum -- ITU-T G.722/G.711.1 Super Wideband Extension Candidate -- Masahiro Fukui, Kimitaka Tsutsumi, Shigeaki Sasaki, Yusuke Hiwasaki, Yoichi Haneda (NTT Corp.)  CQ2009-97 PRMU2009-196 SP2009-137 MVE2009-119 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper describes a coding algorithm for 8-14 kHz bandwith layer of a scalable speech codec, submitted by a consortium including NTT as a candidate in the qualification phase of ITU-T G.722/G.711.1 super wideband extension standardization. The candidate codec achieves high speech quality irrespective of the sound source by using the proposed multistage quantization in the MDCT domain that selects the best encoding scheme among four modes according to the characteristic of various sound sources. The subjective test results showed that the candidate codec obtained higher scores than the reference codec in all samples and passed all requirements of the standardization in listening quality. Key words 14-kHz-bandwidth speech coding, |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | 14-kHz-bandwidth speech coding / scalable coding / vector quantization / ITU-T G.722 / ITU-T G.711.1 / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 375, SP2009-137, pp. 279-284, Jan. 2010. | |
| Paper # | SP2009-137 | |
| Date of Issue | 2010-01-14 (CQ, PRMU, SP, MVE) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | CQ2009-97 PRMU2009-196 SP2009-137 MVE2009-119 |
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| Conference Information | |
| Committee | PRMU SP MVE CQ |
| Conference Date | 2010-01-21 - 2010-01-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kyoto Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | SP |
| Conference Code | 2010-01-PRMU-SP-MVE-CQ |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Multi-layer Speech Coding Using Combination of Modes Based on Sparseness of Input Spectrum |
| Sub Title (in English) | ITU-T G.722/G.711.1 Super Wideband Extension Candidate |
| Keyword(1) | 14-kHz-bandwidth speech coding |
| Keyword(2) | scalable coding |
| Keyword(3) | vector quantization |
| Keyword(4) | ITU-T G.722 |
| Keyword(5) | ITU-T G.711.1 |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Masahiro Fukui |
| 1st Author's Affiliation | NTT Cyber Space Laboratories, NTT Corporation. (NTT Corp.) |
| 2nd Author's Name | Kimitaka Tsutsumi |
| 2nd Author's Affiliation | NTT Cyber Space Laboratories, NTT Corporation. (NTT Corp.) |
| 3rd Author's Name | Shigeaki Sasaki |
| 3rd Author's Affiliation | NTT Cyber Space Laboratories, NTT Corporation. (NTT Corp.) |
| 4th Author's Name | Yusuke Hiwasaki |
| 4th Author's Affiliation | NTT Cyber Space Laboratories, NTT Corporation. (NTT Corp.) |
| 5th Author's Name | Yoichi Haneda |
| 5th Author's Affiliation | NTT Cyber Space Laboratories, NTT Corporation. (NTT Corp.) |
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| Speaker | Author-1 |
| Date Time | 2010-01-22 10:30:00 |
| Presentation Time | 30 minutes |
| Registration for | SP |
| Paper # | CQ2009-97, PRMU2009-196, SP2009-137, MVE2009-119 |
| Volume (vol) | vol.109 |
| Number (no) | no.373(CQ), no.374(PRMU), no.375(SP), no.376(MVE) |
| Page | pp.279-284 |
| #Pages | 6 |
| Date of Issue | 2010-01-14 (CQ, PRMU, SP, MVE) |
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