Robust, Blindly-Detectable, and Semi-Reversible Technique of Audio Watermarking Based on Cochlear Delay Characteristics

Method of Digital-audio Watermarking Based on Cochlear Delay Characteristics

This paper proposes a state-of-the-art method of digital-audio watermarking, based on the properties of the human cochlear. It is based on the concept of embedding inaudible watermarks (e.g., copyright data) into an original sound by controlling the phase characteristics of the sound in relation to the characteristics of cochlear delay. The method involves two processes, i.e., embedding and det...

Chapter 3 Method of Digital - Audio Watermarking Based on Cochlear Delay Characteristics 42

Embedding Limitations with Digital-audio Watermarking Method Based on Cochlear Delay Characteristics

We comparatively evaluated the proposed approach for inaudible audio watermarking with four typical methods (LSB, DSS, ECHO, and PPM) by carrying out objective (PEAQ and LSD) and subjective (inaudibility) evaluations, bit-detection test, and robustness tests (signal modifications and StirMark benchmark). The results of evaluations revealed that subjects could not detect the embedded data in any...

A robust digital audio watermarking based on statistics characteristics

Article history: Received 27 September 2007 Received in revised form 18 July 2008 Accepted 12 January 2009

Robust audio watermarking using a chirp based technique

In this study, we propose a new spread spectrum audio watermarking algorithm that embeds linear chirps as watermark messages. Different chirp rates, i.e., slopes on the time-frequency (TF) plane, represent watermark messages such that each slope corresponds to a different message. We extract the watermark message using a line detection algorithm based on the Hough-Radon transform (HRT). The HRT...