The Test Tone Generator (TTG) turns the PC into a programmable function generator for testing or demonstration, sound tuning, education and many other purposes.Features include: Constant and swept tones (log or lin); Many wave forms (Sine/square/triangle/sawtooth/white and pink noise with adjustable crest factor etc); Extensive scripting capabilities (Macros), dedicated Script Editor included; Preset storage and recall; Change frequencies in seamlessly real time by slider or by musical semitones; Multi sound card support; 24 bit output (internally 64 bit) and sampling frequency up to 384kHz; Separate amplitude modulation left/right; Switches for channel on/off and l/r phase; Save test tones as WAV files for Test CDs; Externally controllable (via Windows Messages)