Working with Harmony Engine

Running Cubase LE AI Elements 10

Hi, Being new to home recording, I need a bit of help; more like leading by the hand. I have installed Atares Harmony Engine Evo 4.1 and trying to activate it for the first time: I have opened Cubase, created an audio track, imported a wave file I created of myself talking, installed Harmony engine on the track and have the Cubase mixer window open. Harmony engine opens a strip in the mixer; however, despite being able to play the audio track in Cubase, I get nothing through Harmony engine. Is there something I have missed along the way?

Thanks for any input anyone can give.