Audio Watermarking Technique against attacks

Information Security

With the increasing usage of digital multimedia, protecting the data from illegal copyright infringement, fingerprinting and other malicious attacks is also increasing. Digital watermarking is a technique which provide protection of digital information against illegitimate exploitations and allocation. Digital audio watermarking technique is a process of embedding perceptually transparent digital information into the original host signal without affecting the signal quality. Watermarking techniques can be applied on various multimedia data such as text, audio, images and video for various application. In this paper we present various methods of audio watermarking techniques and also proposed work. We propose an effective audio watermarking algorithm that is based on the DWT and SVD. The DWT transform decomposes the audio signal into several multi-resolution sub bands for embedding the watermark bits. The watermark bits are embedded in the high-resolution sub bands of the audio signal.

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