Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2009-10-22 14:15
Sound Reproducing System for Easiness of Speech Perception Using Estimate Method of Sound Pressure Level Distribution by Logistic Model
Shiho Atsumi, Kenji Furihata (Shinshu Univ.) EA2009-65
Abstract (in Japanese) (See Japanese page) 
(in English) High volume level output at the loudspeaker can cause the loop to get into an oscillatory mode usually referred to as “howling”. Electrodynamic loudspeakers have inherent nonlinearities generating harmonic and inter-modulation distortion. In order to develop the public address system that can reinforce the source signal without any degradation. In this report, the cumulative sound pressure level distribution by logistic model obtained from the results of a study of listeners' preferences for the most suitable levels of news speech by a female announcer (NHK) in an anechoic room (4×5×3 m3) and a lecture room (1,200 m3) was experimentally discussed. From the results, (a) the midpoint M of the logistic function is 64.6 dB and the spread parameter S that the slope of the function is 1.4 dB based on the data in the anechoic room, and (b) the midpoint M of the logistic functions are from 55.8 dB to 66.3 dB and the spread parameters S are from 1.3 dB to 2.2 dB based on the measured 9-point data in the lecture room.
Keyword (in Japanese) (See Japanese page) 
(in English) Howling / Easiness of Speech Perception / Logistic Model / Sound Pressure Level Distribution / Median / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 240, EA2009-65, pp. 55-60, Oct. 2009.
Paper # EA2009-65 
Date of Issue 2009-10-15 (EA) 
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 EA2009-65

Conference Information
Committee EA  
Conference Date 2009-10-22 - 2009-10-23 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EA 
Conference Code 2009-10-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Sound Reproducing System for Easiness of Speech Perception Using Estimate Method of Sound Pressure Level Distribution by Logistic Model 
Sub Title (in English)  
Keyword(1) Howling  
Keyword(2) Easiness of Speech Perception  
Keyword(3) Logistic Model  
Keyword(4) Sound Pressure Level Distribution  
Keyword(5) Median  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Shiho Atsumi  
1st Author's Affiliation Shinshu University (Shinshu Univ.)
2nd Author's Name Kenji Furihata  
2nd Author's Affiliation Shinshu University (Shinshu Univ.)
3rd Author's Name  
3rd Author's Affiliation ()
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2009-10-22 14:15:00 
Presentation Time 25 minutes 
Registration for EA 
Paper # EA2009-65 
Volume (vol) vol.109 
Number (no) no.240 
Page pp.55-60 
#Pages 6 
Date of Issue 2009-10-15 (EA) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan