This Preview Voice Effect window allow user to preview the currently selected voice effect. To open this dialog, you need to make sure you have selected the "Speak a sentence, then listen to the result" in Option->Preview Mode.

Sample

Click this button if you want to sample(record) your voice with the current selected voice effect. This function is active by default when the Preview Voice Effect window is open.

Listen

Click this button to stop sampling and listen the selected voice effect.

Stop

Click this button to stop listening the selected voice effect.

Edit

Click this button to edit the current selected voice effect.

See Live Mode Preview if you want Voxal to playback the voice as you are speaking.