Time-domain audio watermarking using multiple marking spaces

In this paper, a time-domain audio watermarking scheme is proposed where embedding is done in two different marking spaces which are obtained from the host audio by exploiting the properties of Polar coordinate system. This technique has the advantage of higher embedding capacity due to its double utilization of the same set of audio samples during insertion of watermark message. Simulation results confirm its robustness against attacks like compression, filtering, re-quantization, re-sampling, normalization and white noise addition.