Answer by Graham Dunnett

Read the docs: http://docs.unity3d.com/ScriptReference/Microphone.html You can capture the input into an `AudioClip`. As you'll know, you can [look at][1] the data that an `AudioClip` contains. A microphone doesn't have output. [1]: http://docs.unity3d.com/ScriptReference/AudioClip.GetData.html