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Audio watermarking for acoustic propagation in reverberant environments

: Galdo, G. del; Borsum, J.; Bliem, T.; Craciun, A.; Krägeloh, S.


IEEE Signal Processing Society:
IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2011. Vol.3 : Prague, Czech Republic, 22 - 27 May 2011
Piscataway/NJ: IEEE, 2011
ISBN: 978-1-4577-0538-0
ISBN: 978-1-4577-0539-7
International Conference on Acoustics, Speech and Signal Processing (ICASSP) <36, 2011, Prague>
Fraunhofer IIS ()

Digital audio watermarking has received increasing interest in the last years due to the wide range of applications it can be used for. This contribution presents a novel blind watermarking scheme designed to work in the very specific scenario in which the watermarked audio is played back by a loudspeaker and picked up by the microphone of a mobile device. The proposed scheme is robust against the impairments characterizing this scenario, namely reverberation, movement, microphone self-noise, and interfering sound sources. The conducted performance investigations, as well as the listening tests evaluating the audio quality demonstrate the applicability and efficiency of the proposed system.