Updated: February 18th, 2010
(latest AWT version: 1.09.3)
Audio Watermarking Tools (AWT) of www.audiowatermarking.info are shareware utilities for embedding and extracting watermark (short data payload) within audio streams (wave files). The tools are distributed as a package of GUI and console utilities running on Microsoft Windows 7/Vista/XP/NT/2000/Server and Linux/*nix systems; both x86 and x64 versions of the binaries are available. The package does not require any installation and is ready to use right after unpacking. The package consists of encoder (watermark embedding tool), decoder (watermark extraction tool), GUI front-end utility and User Guide.
AWT provides truly robust audio watermarking that survives acoustic coupling, mixing and low bitrate transcoding with lossy coders. Check examples section.
With AWT you can protect your rights by ensuring that your watermark is detectable (only by you!) in any copy of your audio materials transmitted or broadcasted anywhere.
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.
This software is offered "as is". Please try and buy.
More details, examples and FAQ >>>
Download AWT User Guide (PDF) >>>
Download free AWT evaluation package >>>
AWT screen-shots
Here are screen-shots of AWT GUI tool and console applications for Windows and Linux (Ubuntu). You can click on small images below to see full screen-shots:
AWT GUI tool is available for Microsoft Windows and Linux platforms. It comes with drag'n'drop support.
More details, examples and FAQ >>>
Download AWT User Guide (PDF) >>>
Download free AWT evaluation package >>>
What it does and who it is for
Here is a very simple example of AWT usage. Imagine, you're a musician selling your tracks on the web. Using AWT you add a hidden digital signature (watermark) into every sold track. The signature contains your (creator's) identifier together with identifier of the target user who buys the track. Later on you find your track on torrents or broadcasted on radio. You download or simply record the file and easily extract the signature from it. The signature confirms your ownership and indicates who was your "bad" customer who spread the file.
AWT targets individual musicians, music authors and music owners, audio recording and production studios, on-line music stores, broadcasting companies and other small or medium sized businesses. Here are some of the most common AWT applications:
- content marking and ownership ascertainment (audio content is marked by a special symbols sequence stating your ownership)
- copy protection and monitoring (different recipients get differently watermarked audio content)
More details, examples and FAQ >>>
Download AWT User Guide (PDF) >>>
Download free AWT evaluation package >>>
How to evaluate and how to buy
Evaluation (demo) version of AWT can be freely downloaded using this direct link:
Download AWT evaluation package [ZIP archive, ~22 Mb]
(AWT v1.09.3, Windows and Linux x86/x64 console and GUI binaries included)
The package contains encoder (demo version), decoder, GUI application, descriptive User Guide (PDF), example batch files. You may also want to look at the changes log of AWT package releases.
The demo version of the encoder has limited functionality: the only permitted watermarks that can be embedded into audio stream are: 0x12, 0x56, 0x7890, 0x9876, 0xABCDEF12, 0x12345678, 0x1122334455667788. This is quite strict limitation, however it offers enough flexibility to perform a variety of performance tests so that you can decide whether AWT suits your needs or not before buying a fully functional version.
If you decide to buy AWT you may choose from four different versions of AWT. The versions differ only in maximum allowed watermarking payload length. The price of AWT package is a function of maximum supported payload size:
- 1-Byte maximal payload: 60 Euro
- 2 Byte maximal payload: 140 Euro
- 4-Byte maximal payload: 300 Euro
- Unlimited payload: 700 Euro
You can securely purchase one of these AWT packages via Avangate, a global trustworthy e-commerce provider. The purchasing process is very simple:
please go to this page to buy AWT
(including life-time updates!)
Have a web-site / web-store? You may be interested in joining AWT Affiliate Program.
Contact information
If you want to contact the author of AWT, please mail to the following e-mail address:
mailbox /at/ audiowatermarking /dot/ info.
(*) This watermarking method is US patent pending.
