Base on DCT and EMD Digital Audio Watermarking Algorithm

Based on the problem of robust audio watermarking algorithm, a blind audio watermarking algorithm based on the intrinsic mode function IMF and DCT. Digital watermarking by EMD decomposition by the IMF; how to design and select the IMF extreme and with DCT find peaks method watermark information and synchronization code is embedded, carrying digital watermarking to maintain the original audio perceptual quality, the simulation experiment that carrying audio watermarking by adding noise, re sampling to noise and resampling attacks, extracted watermark changes little, robustness and better algorithm in the wavelet domain and compared, algorithms are proposed to ensure high data embedding rate and can resist the attack of noise.