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| Paper Abstract and Keywords | ||
| Presentation | 2007-06-29 11:20 Automatic detection and estimation of the direction of calling speech under noisy envirionment Motoyuki Suzuki, Kouta Kitadate, Akinori Ito, Shozo Makino (Tohoku Univ.)  SP2007-19 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | If the robot understands user’s calling voice, it can approach the user to hear the user’s commands. In this paper we developed a method to detect user’s calling voice and estimate the direction of arrival (DoA) of the voice in a real environment. Many works have been proposed for estimation of DoA, but most of those methods do not assume more than one voice sources. Our method detects pre-registered voice even when other voice and heavy noise exist. The method combines two distinct technologies. One is the multi-channel spectrum subtraction(MSS). Using MSS we record sound from every five degree. The next technology is word spotting using continuous DP (CDP) matching. We perform CDP for all of 72 directions in parallel. When a registered word is detected, the word is verified using the frame relation matrix, which expresses word-internal similarities. Finally, the scores of CDP are combined with power of each direction to determine the DoA. We carried out experiments and obtained 95% accuracy for from 0 to 20 dB SNR conditions. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Detection of calling voice / Estimation of direction of arrival / Frame Relation Matrix / Microphone array / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 116, SP2007-19, pp. 67-72, June 2007. | |
| Paper # | SP2007-19 | |
| Date of Issue | 2007-06-21 (SP) | |
| 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 | SP2007-19 |
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| Conference Information | |
| Committee | SP |
| Conference Date | 2007-06-28 - 2007-06-29 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The University of Aizu |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Speech Recognition, Speech Understanding, Speech Dialogue, etc. |
| Paper Information | |
| Registration To | SP |
| Conference Code | 2007-06-SP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Automatic detection and estimation of the direction of calling speech under noisy envirionment |
| Sub Title (in English) | |
| Keyword(1) | Detection of calling voice |
| Keyword(2) | Estimation of direction of arrival |
| Keyword(3) | Frame Relation Matrix |
| Keyword(4) | Microphone array |
| Keyword(5) | |
| Keyword(6) | |
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| Keyword(8) | |
| 1st Author's Name | Motoyuki Suzuki |
| 1st Author's Affiliation | Tohoku Univerisyt (Tohoku Univ.) |
| 2nd Author's Name | Kouta Kitadate |
| 2nd Author's Affiliation | Tohoku Univerisyt (Tohoku Univ.) |
| 3rd Author's Name | Akinori Ito |
| 3rd Author's Affiliation | Tohoku Univerisyt (Tohoku Univ.) |
| 4th Author's Name | Shozo Makino |
| 4th Author's Affiliation | Tohoku Univerisyt (Tohoku Univ.) |
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| Speaker | Author-1 |
| Date Time | 2007-06-29 11:20:00 |
| Presentation Time | 30 minutes |
| Registration for | SP |
| Paper # | SP2007-19 |
| Volume (vol) | vol.107 |
| Number (no) | no.116 |
| Page | pp.67-72 |
| #Pages | 6 |
| Date of Issue | 2007-06-21 (SP) |
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