Audio Steganogrpahy based on MATLAB. Steganography based on Discrete cosine transform

MP3压缩域的音频水印的研究 基于压缩域的音频信息隐藏技术，主要研究在MP3等格式的音频文件中嵌入秘密信息达到版权保护的目的。-a audio watermarking based on modified discrete cosine transform ofmpeg/ audio layer III

实现了在matlab下音频信号的dct(离散余弦)和fft(傅里叶变换)相对matlab工具箱，有快速准确的效果。-Realized the dct (discrete cosine) of the audio signal in matlab fft (Fourier transform) relative matlab toolbox, fast and accurate results.