ToneGen is an easy-to-use app that can be used as a sine wave generator, sound frequency, or signal generator that can create an audio test tone, sweep, or noise waveform.

Use ToneGen Tone Generator calibrate and test audio and sound equipment or speakers. ToneGen Free also includes a white noise generator. Create a unique signal by simultaneously generating up to 16 tones at once. Save a tone or audio signal for later use. Create harmonics by creating multiple sound and audio frequencies.