Choice Approach for Embeddable Position of Audio Watermarking in the DCT Domain
DCT域音频水印算法的嵌入位置选择策略

A new choice approach for embeddable position of audio watermarking scheme in the DCT domain based on research of IDCT maximum error modal is proposed. A math relationship between the watermark embeddable position and the audible quality of the audio file with watermark is set up. First the optimal position to be embedded based on the inaudible requirement is selected. Second the power coefficient of watermark is adjusted to satisfy the requirement of robustness. So the utmost need of inaudible and robust of audio watermarking scheme was filled. It is a good approach to settle the trade-off between the two requirements of audio watermarking; inaudible and robustness.