Since version 0.4, you have the ability to record voice clips and launching them using the Audio action.
To access the Audio recording function, make sure you are in Edit mode and no panel is open (press X to close any panel open).
Press A. A message asking you to allow access to the microphone might appear; choose OK. At this point, a microphone should have appeared on your right controller. Press and hold the trigger to record an audio clip; release the trigger when you’re done. Record as many audio as needed in your experience. To launch an audio clip, create an Interaction using the Audio action.
Exit the Audio recording function by pressing X.