A Robust Audio Sonic Watermarking Algorithm Oriented Air Channel

A robust audio sonic watermarking algorithm oriented air channel has been proposed. The algorithm is based on DCT transform, using Barker code as synchronization code sequence. Coefficients of low frequency were chosen to be modified for completing embedding. This algorithm can effectively resist various attacks and interference with air channel, Also it can effectively against cropping MP3 compression attacks and 30% resample. While the watermark detection does not require the original audio, it achieves blind watermarking extraction. Experimental results indicate that the proposed algorithm has good hidden effect and large embedding capacity.