The Test Tone Generator software transforms PCs into a high-precision 24-bit audio and function generator, facilitating testing or demos, sound manipulation, training, sound mixing, and multiple other purposes. It offers high accuracy at 24-bit and fs up to 384kHz.

Among the most notable features of TTG are constant and swept tones that can be on a logarithmic or linear scale. The software also has a variety of waveforms, including sine, square, triangle, sawtooth, white and pink noise, and adjustable crest factor. Furthermore, the software has a Script Editor that allows users to make extensive use of scripts and macros in their projects.
TTG is also equipped with preset storage capabilities that allow the easy recall of past projects. Additionally, its frequency can be changed in seamless real-time using a slider or by musical semitones. It also supports multi-sound card use, has 24-bit output, and can sample at up to 384kHz.
The software also comes equipped with a separate amplitude modulation left/right feature, switches for channel on/off and left/right phase, and an ability to save test tones as WAV files for use on test CDs. Finally, TTG is externally controllable via Windows Messages.
Overall, TTG is an excellent software that offers a comprehensive and customizable solution for those seeking to generate various sound frequencies for different purposes, whether for testing or creative expression.
Version 4.5: Sampling rates up to 384kHz, more robust 24 bit implementation
Version 4.6: Sampling rates up to 384kHz, more robust 24 bit implementation