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http://dx.doi.org/10.5573/ieek.2013.50.12.232

Performance Analysis of Audio Data Hiding Method based on Phase Information with Various Window Length  

Cho, Kiho (Department of Electrical and Computer Engineering and INMC, Seoul National University)
Kim, Nam Soo (Department of Electrical and Computer Engineering and INMC, Seoul National University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.12, 2013 , pp. 232-237 More about this Journal
Abstract
The role of the window length of time-frequency transformation is important for the audio data hiding methods utilizing phase information. In this paper, the experiments for our audio data hiding method were conducted in order to evaluate the audio quality and robustness against reverberant environment. The experimental results showed the tendency that the worse audio quality but better robustness were obtained when the lengthy window was applied. The important reason for quality degradation was pre-echo which flatters the percussive sound. The results also indicated that the wireless communication theory related to the length of time-frequency transform can be applied in the field of audio data hiding and acoustic data transmission.
Keywords
MCLT (Modulated Complex Lapped Transform); PEAQ (Perceptual Evaluation of Audio Quality);
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Times Cited By KSCI : 1  (Citation Analysis)
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