Abstract: A novel audio watermarking algorithm,based on audio content analyzing and DCT transform,was proposed.At first,the character of audio was analyzed in the time domain,and some steady high-energy local regions was selected,and DCT was performed on the selected audio signal segments,finally the watermark was embedded into the amplitude of the DCT coefficient.The experimental results show the proposed algorithm with high robustness against common audio signal processing,MP3 compression,time-scale modification an...