A high payload audio watermarking algorithm robust against Mp3 compression

Abstract

This paper presents a blind audio watermarking algorithm in wavelet domain. The proposed algorithm has high embedding capacity with very good robustness against mp3 compression and other signal processing attacks. Discrete wavelet transform is applied on non-overlapping frames and third level detailed coefficients are decomposed using QR decomposition represented in a matrix form. The R matrix of QR decomposition is then used to embed the watermarking bit using the embedding function in each frame. Experimental results indicate that the proposed audio watermarking algorithm is highly robust against mp3 compression with 0% BER at high payload of 320 bps.