Hi,
Once you are happy with the voice you have selected, you can apply the voice in other applications which take an audio input. These are the steps you would take to make it work:
Make sure the other application is closed. Voxal must run before the application you wish to use your voice in.
Run Voxal and select the voice you wish to use.
Open the other program where you wish to apply the effect.
If everything is working properly you should see that Voxal displays the text "Status: Successfully processing!" and the microphone volume meter will be moving.
Best regards,