This is Matlab Project/Thesis Work on "Digital Audio Watermarking".Watermarking is a technique used to hide data or identifying information within digital multimedia or for copyright purpose. In this work, we will hide a Watermark Image (Logo of any company) into a Digital Audio (i.e., Original Audio Sample). To improve the security and performance, an additional Private Key/Password would also be used in Arnold Transformation of Watermark Image for scrambling purpose. The same Private Key/Password would be used at the time of Decoding/Extracting the Watermark from Watermarked Audio.

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