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| Presentation | 2012-03-08 12:20 Parameter Optimization in VAD Used in Noise Specral Estimation for Spectral Suppression Method Guo Lei, Kenji Nakayama, Akihiro Hirano (Kanazawa Univ.)  CAS2011-125 SIP2011-145 CS2011-117 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In spectral suppression noise canceller, spectral gain is multiplied to the noisy speech spectrum to reduce noise. To calculate spectral gain, noise spectrum estimation is necessary. By using Voice Activiy Detector (VAD), noise spectrum is estimated by discriminating the input noisy speech into speech/quasi-speech/non-speech frames. The threshold of noisy speech discrimination is not adaptive to input noise type in the conventional method. In this paper, threshold optimization method is proposed. Based on noise characteristics, optimal parameters for colorless noise and colored noise are proposed. Also, automatic detection of colorless noise and colored noise algorithm is proposed. Simulations are carried out in 5 different noise-changed conditions by using 3 sets of input speech signals. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | VAD / Noise Canceller / Noise Discrimination / Colorless Noise / Colored Noise / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 465, CAS2011-125, pp. 103-108, March 2012. | |
| Paper # | CAS2011-125 | |
| Date of Issue | 2012-03-01 (CAS, SIP, CS) | |
| 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 | CAS2011-125 SIP2011-145 CS2011-117 |
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| Conference Information | |
| Committee | CAS CS SIP |
| Conference Date | 2012-03-08 - 2012-03-09 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The University of Niigata |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Network Processor, Signal Processing for communication, and Wireless LAN/PAN, etc. |
| Paper Information | |
| Registration To | CAS |
| Conference Code | 2012-03-CAS-CS-SIP |
| Language | English (Japanese title is available) |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Parameter Optimization in VAD Used in Noise Specral Estimation for Spectral Suppression Method |
| Sub Title (in English) | |
| Keyword(1) | VAD |
| Keyword(2) | Noise Canceller |
| Keyword(3) | Noise Discrimination |
| Keyword(4) | Colorless Noise |
| Keyword(5) | Colored Noise |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Guo Lei |
| 1st Author's Affiliation | Kanazawa University (Kanazawa Univ.) |
| 2nd Author's Name | Kenji Nakayama |
| 2nd Author's Affiliation | Kanazawa University (Kanazawa Univ.) |
| 3rd Author's Name | Akihiro Hirano |
| 3rd Author's Affiliation | Kanazawa University (Kanazawa Univ.) |
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| Speaker | Author-1 |
| Date Time | 2012-03-08 12:20:00 |
| Presentation Time | 25 minutes |
| Registration for | CAS |
| Paper # | CAS2011-125, SIP2011-145, CS2011-117 |
| Volume (vol) | vol.111 |
| Number (no) | no.465(CAS), no.466(SIP), no.467(CS) |
| Page | pp.103-108 |
| #Pages | 6 |
| Date of Issue | 2012-03-01 (CAS, SIP, CS) |
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