The Voice Principle states that people learn best from a human voice than a computer voice.
Putting the Voice Principle into practice:
If you have ever listened to spoken directions from a computer voice, or perhaps interacted with Amazon’s Alexa to get the weather forecast, you know what we’re talking about here. Computerized voices can be off-putting.
Instructional designers can employ this principle by either recording themselves narrating their instructional modules, or by working with others to provide audio narration.
It’s also important that high quality audio is used for voice overs and narrations. Reliable, quality audio hardware and software are key to creating audio files that don’t have audio interference that distracts learners from the content.