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Paper Abstract and Keywords
Presentation 2019-03-13 15:15
[Poster Presentation] Study on inaudible audio information hiding using linear-time variant IIR filter based on cochlear delay characteristics
Candy Olivia Mawalim, Masashi Unoki (JAIST) EMM2018-108
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, an inaudible audio information hiding based on cochlear delay (CD) characteristics is developed by using linear time-variant (LTV) system. CD is one of characteristics in human cochlear which can be employed for imperceptibly hiding information in audio file. However, for achieving blind detectable aspect, framing and phase shift keying (PSK) techniques were employed in previous approach. This implies significant distortion in the modified signal. In this research, we attempted to solve this inaudibility issue by utilizing LTV CD filter and selecting the prospective inaudible segments in the embedding scheme. In the detection scheme, we employed the instantaneous chirp-z transformation (CZT) to estimate the zero positions of CD filter. For evaluating our proposed method, we carried out the objective evaluation with regards to the imperceptibility (PEAQ and LSD) and robustness aspects. The experimental result shows that the proposed method can achieve good inaudibility aspect. In addition, it is robust against white Gaussian noise addition and MP3 compression.
Keyword (in Japanese) (See Japanese page) 
(in English) Cochlear delay / IIR filter / LTI system / LTV system / chirp z-transform / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 494, EMM2018-108, pp. 89-94, March 2019.
Paper # EMM2018-108 
Date of Issue 2019-03-06 (EMM) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 EMM2018-108

Conference Information
Committee EMM  
Conference Date 2019-03-13 - 2019-03-14 
Place (in Japanese) (See Japanese page) 
Place (in English) TBD 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Image and Sound Quality, Metrics for Perception and Recognition, Human Auditory and Visual System, etc. 
Paper Information
Registration To EMM 
Conference Code 2019-03-EMM 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study on inaudible audio information hiding using linear-time variant IIR filter based on cochlear delay characteristics 
Sub Title (in English)  
Keyword(1) Cochlear delay  
Keyword(2) IIR filter  
Keyword(3) LTI system  
Keyword(4) LTV system  
Keyword(5) chirp z-transform  
1st Author's Name Candy Olivia Mawalim  
1st Author's Affiliation Japan Advanced Institute of Science and Technology (JAIST)
2nd Author's Name Masashi Unoki  
2nd Author's Affiliation Japan Advanced Institute of Science and Technology (JAIST)
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Date Time 2019-03-13 15:15:00 
Presentation Time 60 
Registration for EMM 
Paper # IEICE-EMM2018-108 
Volume (vol) IEICE-118 
Number (no) no.494 
Page pp.89-94 
#Pages IEICE-6 
Date of Issue IEICE-EMM-2019-03-06 

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