A Blind Watermarking Algorithm for Audio Signals Based on Singular Value Decomposition

摘要

This paper proposes a blind digital watermarking scheme for audio signals based on Singular Value Decomposition (SVD) and Quantization Index Modulation (QIM). The process involves a watermark using a binary image file which has been readjusted using Arnold Transform before being embedded into the host signal. Synchronization code is embedded into the audio signal so that the watermark has the capability of self-synchronization against attacks. Experimen tation is done to check the robustness of the proposed scheme in the presence of various attacks. Experimental results indicate that the proposed scheme provides good imperceptibility and robustness under various signal processing attacks.