Authors
Yasunari Yoshitomi1, *, Shohei Tani2, Masaki Arasuna3, Ryota Kan4, Taro Asada1, Masayoshi Tabuse1
1Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Nakaragi-cho, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
2Fukuchiyama City Hall, 13-1 Miki, Fukuchiyama, Kyoto Prefecture 620-8501, Japan
3Nissay Information Technology Co., Ltd., 5-37-1 Kamata, Ohta-ku, Tokyo 144-8721, Japan
4Shimazu Business Systems Co., Ltd., 1 Kuwahara-cho Nishinokyo, Nakagyo-ku, Kyoto 604-8442, Japan
*Corresponding author. Email: [email protected]
Corresponding Author
Yasunari Yoshitomi
Received 18 October 2018, Accepted 5 December 2018, Available Online 27 September 2019.
DOI
https://doi.org/10.2991/jrnal.k.190828.013
Keywords
Authentication; audio; copyright protection; wavelet transform; fundamental frequency
Abstract
Several digital watermarking techniques for audio files have been proposed for hiding data for protecting their copyrights. There is a tradeoff between the quality of watermarked audio and the tolerance of watermarks to signal processing methods, such as compression. To overcome the inevitable tradeoff, we previously developed an authentication method for digital audio. We have improved the method by determining the region to be authenticated in the audio data by making effective use of the fundamental frequency characteristics.
Copyright
© 2019 The Authors. Published by ALife Robotics Corp. Ltd.
Open Access
This is an open access article distributed under the CC BY-NC 4.0 license (http://creativecommons.org/licenses/by-nc/4.0/).

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