Description from the Publisher
Audio Watermarking Tools (AWT) are shareware utilities for embedding (and extracting) short data payload within audio streams (wave files). The tools are distributed as a package of Win32 console utilities running on Microsoft Windows 7/Vista/XP/NT/2000/Server; x86 and x64 versions of the binaries are available.
The watermark is extremely robust. It survives almost all kinds of audio conversions like transcoding using MP3, Ogg Vorbis and other lossy coders, acoustic coupling (transducing via air), effect processing, from a simple EQ to an extreme dynamic range compression, reverberation, echo, and more. AWT is free to try.
AWT package is free to try. Evaluation (demo) version of AWT with limited functionality is available and can be downloaded absolutely free. Despite its limited functionality, the demo package offers enough flexibility to perform a variety of performance tests so that you can decide whether AWT suits your needs before buying a fully functional version.