关键词: 音频水印, 特征点, 均值量化索引调制（MQIM）, 离散小波变换（DWT）

Abstract: A robust digital audio watermarking technology based on Mean Quantization Index Modulation（MQIM） and feature points is proposed.It chooses the digital audio local energy peaks as feature to extract the stable feature points，marks the feature points and segments the audio signal behind the feature points，then embeds the watermark bits into wavelet domain by using MQIM.Meanwhile，the algorithm can extract the watermark without the help from the original digital audio signal.Simulation results show that the proposed watermarking scheme is not only robust against common signals processing such as MP3 compression，noise addition，re-sampling，re-quantization，but also robust against the desynchronization attacks such as random cropping，amplitude variation，pitch shifting，time-scale modification，and jittering.

Key words: audio watermarking, feature points, Mean Quantization Index Modulation（MQIM）, Discrete Wavelet Transform（DWT）