Audio Watermarking with Complex Cepstrum Domain Embedding

Resource Overview

Audio watermark embedding in complex cepstrum domain using statistical mean modulation method with signal processing implementation details

Detailed Documentation

Audio watermarking technology is a method for embedding watermark information into audio signals. In the complex cepstrum domain, watermark information is embedded using statistical mean modulation, enabling both watermark embedding and extraction functionality. This approach typically involves computing the complex cepstrum through Fourier transform operations, where the statistical mean values of specific cepstral coefficients are modulated according to watermark bits. The implementation commonly utilizes MATLAB signal processing functions for Fourier analysis, cepstral computation, and coefficient modification algorithms. Audio watermarking technology has extensive applications including audio copyright protection, identity authentication, and anti-counterfeiting measures.