In this video tutorial the instructor shows how to hook up Reason's vocoder to record for use with a live audio input and how to put a vocoder on an existing audio recording. This vocoder is available only in record if you have Reason. So standalone users will not be able to use this tool. You can use the vocoder device along with live input from your audio interface and generate a robot voice singing. First create a vocoder carrier sync that will modulate with your voice and mix it with your audio interface. To do so connect the two different audio sources with a jack. Now the rest of the tutorial shows you how to do this complex task through a live demonstration. This video shows how to use Reason's vocoder tool to generate a robot singing effect.