Test Tone Generator (TTG) to your computer into an audio signal generator, can be used for testing, teaching, etc. produced sound. It can produce real-time continuous signal. You can save it as a wav file, can burn a test CD you can run test scripts and can be saved four default. Test Tone Generator (TTG) to support a variety of sound cards. The latest version of Windows NT/2K/XP improve multi-user support.