Voca is a speech and audio viewer for seeing speech and other audio patterns. Voca displays the sound coming into the microphone graphically on the screen. Available viewing option are: spectrogram, frequency display, waveform and audio volume history. This tool is useful for encouraging speech and seeing different patterns generated by different sounds.

Live Voca Web App

Click or tap above to launch the live web app version.

The Voca app contains no adverts, in-app purchases, and we do not collect data.

Get Voca

Voca (and all Sensory App House apps) do not contain advertising. 

It is possible to license the Sensory Web Apps to run from your own servers. Please contact us at [email protected] if you would like to license the Sensory apps for use on your network or in your application.

Voca Screenshots