Advanced Covert Communication: Speech Steganography with DWT

Created using ChatSlide

The presentation explores a novel approach to speech steganography using the Discrete Wavelet Transform (DWT). Unlike traditional encryption that only conceals content, this method provides a covert communication system with low distortion and noise. It employs speech as the cover signal, decomposes it with DWT, and uses Silence Activity Detection (SAD) to identify voiced regions for embedding data into high-frequency components. The system demonstrates high imperceptibility and robustness to...