Tone Generator

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Tone Generator

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Tone generator to create test audio signals

A handy signal generator utility app to create test tones. The app works stand alone but also includes an audio extension version to be used with compatible 3rd party music software. The macOS version now works with Garageband and Logic Pro!

Generates the following signals:

  • Sinewave
  • Triangle wave
  • Sawtooth wave
  • White noise
  • Pink noise

The frequency and volume can be controlled with sliders or can be entered using the keyboard by tapping on the value. The macOS version audio unit now accepts MIDI note information.

Digitally created triangle and sawtooth waveforms contain alias artefact frequencies. These can optionally be filtered using the built in anti-alias filter.

All controls are smoothed so no pops or clicks are heard when changing values or the waveform type.


Ideal for testing audio equipment, science experiments, testing acoustics, testing hearing or even as a relaxation aid (using the noise modes)


Available now on the App Store. Click on the link above to take you there now!

Tone Generator app iPhone6 image

iOS screenshot

Tone Generator macOS app screenshot

macOS screenshot