Mean the use of quantitative methods, will watermark embedded in the audiocarrier, 11 Barker Code as a synchronous signal, which was used to positioning embedding position.
And the matrix coding help to reduce the proportion of the original audio changes, thereby reducing the effects of the original audiocarrier 'imperceptibility when embeded datas.
并且矩阵编码有助于减小对原始音频的修改比例，进而减小嵌入数据对原始音频载体不可感知性的影响。
3
Calculating masking threshold of every critical band by auditory masking model, then quantization steps are controlled by masking threshold and value of audiocarrier of the embedding points.