An audio blind watermark algorithm in wavelet domain based on chaotic encryption

摘要

In this paper, the technology of embedding the audio signal based on chaotic encryption is researched. A short audio watermark encrypted by a chaotic sequence can be embedded in the original signal wavelet domain in the algorithm. The watermark is encrypted firstly with the chaos method, and makes the position of the watermark with another chaotic sequence. The watermark has dual security and realizes blind extraction. The experimental results show that there is of high security and robustness by using chaos sequence to audio information hiding audio watermark