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Paper Abstract and Keywords
Presentation 2009-10-23 09:40
A study on the input-output characteristics of audio interface for PC
Masanori Shiga, Yoshihiro Kobayashi, Yuichi Ochiai, Yutaka Kaneda (Tokyo Denki Univ.), Yuichi Fukushima (ONSOKU) EA2009-67
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, an audio interface (AIF) that can connect with a personal computer (PC) has been widely used in acoustic measurements. In this study, we investigated the characteristics of a low-pass filter (LPF) and a high-pass filter (HPF) implemented in an AIF. The main results are as follows: 1) The LPF response does not fully attenuate at Nyquist frequency Fs/2 to maintain the flatness of the pass-band response; hence, measurement error occurs owing to aliasing. 2) Two types of LPF time response, namely, linear-phase response and steep onset time response, are observed. 3) The AIF implements the HPF to cut the DC component, and its response is discontinuous at the time origin and continues for a long time.
Keyword (in Japanese) (See Japanese page) 
(in English) audio interface / filter characteristic / low-pass filter / high-pass filter / impulse response / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 240, EA2009-67, pp. 67-72, Oct. 2009.
Paper # EA2009-67 
Date of Issue 2009-10-15 (EA) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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)
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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) 
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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) A study on the input-output characteristics of audio interface for PC 
Sub Title (in English)  
Keyword(1) audio interface  
Keyword(2) filter characteristic  
Keyword(3) low-pass filter  
Keyword(4) high-pass filter  
Keyword(5) impulse response  
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Keyword(8)  
1st Author's Name Masanori Shiga  
1st Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
2nd Author's Name Yoshihiro Kobayashi  
2nd Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
3rd Author's Name Yuichi Ochiai  
3rd Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
4th Author's Name Yutaka Kaneda  
4th Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
5th Author's Name Yuichi Fukushima  
5th Author's Affiliation ONSOKU ELECTRIC CORP. (ONSOKU)
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Speaker Author-1 
Date Time 2009-10-23 09:40:00 
Presentation Time 25 minutes 
Registration for EA 
Paper # EA2009-67 
Volume (vol) vol.109 
Number (no) no.240 
Page pp.67-72 
#Pages 6 
Date of Issue 2009-10-15 (EA) 

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