New technique for embedding watermark image into an audio signal

An audio watermarking algorithm which embedded watermark image is presented in this paper. A binary watermark image is embedded into an audio signal. For embedding process, the original audio signal is decomposed to wavelet domain by using wavelet basis. In order to obtain the robustness watermark signal, low frequency coefficients are selected and then divided to several segments. A mean of each segment is calculated and applied for the voting technique combination with mean-quantization performs embedding the watermark into the original audio signal. After original audio signal is embedded, the watermarked audio signal distortion is still inaudible. In addition, the watermark image could be recovered without using the original audio signal in extracting process. The experimental results show that the watermark image obtained from this algorithm is robust to many attack operations, such as Additive White Gaussian Noise, resampling, requantization, low pass filtering, and mp3 compression.