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Paper Abstract and Keywords
Presentation 2018-03-20 12:30
Analysis of transmission characteristics of bone-conducted speech using spoken voice
Teruki Toya (JAIST), Peter Birkholz (Tech. Univ. of Dresden), Masashi Unoki (JAIST) EA2017-167 SIP2017-176 SP2017-150
Abstract (in Japanese) (See Japanese page) 
(in English) This paper investigated spectral characteristics of temporal bone (TB) and ear canal (EC) components of bone-conducted speech (BC), to clarify the BC transmission process. Firstly, speakers' air-conducted (AC) speech, TB vibration, and EC radiated speech of 5 vowel utterances were recorded and their spectral envelopes were analyzed using cepstrum method and linear prediction analysis. The results showed that spectral shapes derived from TB vibration and EC speech are different each other. Secondly, AC speech, TB vibration and EC speech during sentence-reading were recorded and their long-term average spectra (LTAS) were analyzed. The results showed that both TB vibration and EC speech have a dominant component in lower frequency region compared to AC speech. Lastly, voice source characteristics in each LTAS were compensated, to estimate the transmission characteristics from their larynxes to the observation positions. The results showed that larynx-to-TB transmission emphasizes the frequency components below 2 kHz, and larynx-to-EC transmission emphasizes the components between 1.5 and 3 kHz. From these results, it was indicated that the outer ear part of BC might contribute to perception of higher frequency components and the other parts of BC might contribute to perception of lower frequency components.
Keyword (in Japanese) (See Japanese page) 
(in English) air-conducted speech / bone-conducted speech / spectral characteristics / transmission characteristics / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 515, EA2017-167, pp. 355-360, March 2018.
Paper # EA2017-167 
Date of Issue 2018-03-12 (EA, SIP, SP) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 EA2017-167 SIP2017-176 SP2017-150

Conference Information
Committee SIP EA SP MI  
Conference Date 2018-03-19 - 2018-03-20 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) Speech, Engineering/Electro Acoustics, Signal Processing, and Related Topics [SIP, EA, SP]/ Medical Image Engineering, Analysis, Recognition, etc. [MI] 
Paper Information
Registration To EA 
Conference Code 2018-03-SIP-EA-SP-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Analysis of transmission characteristics of bone-conducted speech using spoken voice 
Sub Title (in English)  
Keyword(1) air-conducted speech  
Keyword(2) bone-conducted speech  
Keyword(3) spectral characteristics  
Keyword(4) transmission characteristics  
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1st Author's Name Teruki Toya  
1st Author's Affiliation Japan Advanced Institute of Science and Technology (JAIST)
2nd Author's Name Peter Birkholz  
2nd Author's Affiliation Technical University of Dresden (Tech. Univ. of Dresden)
3rd Author's Name Masashi Unoki  
3rd Author's Affiliation Japan Advanced Institute of Science and Technology (JAIST)
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Speaker Author-1 
Date Time 2018-03-20 12:30:00 
Presentation Time 25 minutes 
Registration for EA 
Paper # EA2017-167, SIP2017-176, SP2017-150 
Volume (vol) vol.117 
Number (no) no.515(EA), no.516(SIP), no.517(SP) 
Page pp.355-360 
#Pages
Date of Issue 2018-03-12 (EA, SIP, SP) 


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