| Paper: | SPCOM-P13.9 | ||
| Session: | Broadcast Channels / Multi-User Detection | ||
| Time: | Friday, May 19, 16:30 - 18:30 | ||
| Presentation: | Poster | ||
| Topic: | Signal Processing for Communication: Signal representation, modulation, coding and compression | ||
| Title: | Audio watermarking based on sinusoidal amplitude modulation | ||
| Authors: | Akira Nishimura, Tokyo University of Information Sciences, Japan | ||
| Abstract: | A new watermarking system based on amplitude modulation is proposed. Sinusoidal amplitude modulations at relatively low modulation frequencies applied to the neighboring subband signals in opposite phase are used as the carrier of embedded information. The embedded information is encoded in the form of the relative phase differences between the amplitude modulations applied to several groups of subband signals. Extraction of the amplitude modulations from the watermarked signal is performed by calculating the logarithmic ratio of the amplitude envelopes extracted from the neighboring subband signals. Deterioration of the sound quality resulting from the watermarking is barely detectable because modulation detection interference in the human auditory system and masking in the frequency-domain disturb the perceptual detectability of the additional amplitude modulations. | ||
©2018 Conference Management Services, Inc. -||- email: webmaster@icassp2006.org -||- Last updated Friday, August 17, 2012