Overview The Sine Wave subVI in the Signal Processing palette is a useful way to produce a sinusoidal audio signal. The screenscast video will acquaint you with the Sine Wave subVI, especially its requirement for normalized frequency. This subVI is one of several re-entrant signal generators, meaning that they have the ability to “pick up where they left off;” that is, they can maintain continuity in their output across execution runs and loop iterations.

[video] Sinewave source for audio applications