Watermarked movie soundtrack finds the position of the camcorder in a theater
IEEE Transactions on Multimedia - Special section on communities and media computing
Information delivery systems for car passengers without networking capabilities
PCM'07 Proceedings of the multimedia 8th Pacific Rim conference on Advances in multimedia information processing
Multi-channel acoustic data transmission to ad-hoc mobile phone arrays
ACM SIGGRAPH 2013 Mobile
Multi-channel acoustic data transmission to ad-hoc mobile phone arrays
ACM SIGGRAPH 2013 Mobile
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This work proposes an audio data hiding system that hides information into signals not known beforehand. The system can hide data into live music, or ambient sounds in general, and can be used to communicate information acoustically from one device to another. An important benefit of such a system is backward-compatibility, as the transmitter is a speaker, and the receiver is a microphone, both of which are already present in numerous devices and environments. The highest data rate achieved was 213 bits/s, while keeping the error rate under 10%. The developed technique was applied in a simple navigation system, where acoustic data embedded into background music indicates the location of the receiver