A portable acoustic caption decoder using IH techniques for enhancing lives of the people who are deaf or hard-of-hearing - System configuration and robustness for airborne sound -

Tetsuya Munekata, Toshimitsu Yamaguchi, Hiroki Handa, Ryouichi Nishimura, Yôiti Suzuki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A Portable Acoustic Caption Decoder enables a person who is deaf or hard-of-hearing to have access to audio announcements in public places if the auditory presentation accompanies embedded transcripts. Despite of discouraging results of studies indicating the low robustness of a signal that is transmitted through the air, our decoder successfully detected signals emitted from a loudspeaker located 77 meters away. Embedded bits were conveyed by white-noise in 16-bits digital (fs=44.1 kHz; 1,411 kbps) at 4bps using echo-hiding technique. The sound pressure level of the 77-meter point was as low as 46dB. Autocepstrum diagrams of the point showed that each of the embedded bits keep good "spikes". Although, further experiments are needed, the results will encourage researchers to use "airborne stego-sound" to explore more practical applications.

Original languageEnglish
Title of host publicationProceedings - 3rd International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIHMSP 2007.
Pages271-274
Number of pages4
DOIs
Publication statusPublished - 2007 Dec 1
Event3rd International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIHMSP 2007 - Kaohsiung, Taiwan, Province of China
Duration: 2007 Nov 262007 Nov 28

Publication series

NameProceedings - 3rd International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIHMSP 2007.
Volume2

Other

Other3rd International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIHMSP 2007
CountryTaiwan, Province of China
CityKaohsiung
Period07/11/2607/11/28

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Information Systems and Management

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  • Cite this

    Munekata, T., Yamaguchi, T., Handa, H., Nishimura, R., & Suzuki, Y. (2007). A portable acoustic caption decoder using IH techniques for enhancing lives of the people who are deaf or hard-of-hearing - System configuration and robustness for airborne sound -. In Proceedings - 3rd International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIHMSP 2007. (pp. 271-274). [4457703] (Proceedings - 3rd International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIHMSP 2007.; Vol. 2). https://doi.org/10.1109/IIH-MSP.2007.52