Audiospex - An app to visualise music library, microphone or test tones like an oscilloscope.

See your sound...put audio under the Audiospex to see a detailed visual representation of sound! Has all the key functions and behaviour of an oscilloscope, the engineers tool for this task. In particlular it simulates the classic effect of a CRT sweep fading over time, but also includes oscilliscope functions like level trigger to 'freeze' repetitive signals.

Use it as a visualizer, measurement tool or learning more about sound.


  • View audio waveforms from microphone input, your music library, the built in signal generator or from an inter app audio host app.
  • Zoom in with pinch gestures to see high frequency detail or zoom out to see the volume waveform over seconds.
  • Experiment with the built in signal generator to view 3 types of waveform and adjust both frequency and volume.
  • Play any song from your music library through the visualizer.
  • Accurately measure time and frequency with the grid set to convenient time intervals
  • Use the trigger mode to ensure the trace starts from the same point each time. This has the effect of 'freezing' simple waveforms making them easier to view.
  • Alter the colours of the trace, grid and background to any colour to fit your mood.
  • Change the decay time of the trace from a small blip to a continuous trace.

Watch it in action

Audiospex oscilliscope iPhone screenshot


Available on the App Store now.

Audiospex iOS app icon


For iPhone, iPod Touch and iPad

Download on the app store