If you are using your computer’s speakers during your recording session and not using headphones or a headset, you run the risk of recording audio sound produced by your speakers into your microphone.  WildVoice Studio directly records audio played thru the Cart Rack or Sound Effect Rack directly to the Podcast.  The echo occurs because your microphone will pick up the Cart or Sound Effect Rack audio a second time from your speakers. We recommend using a headset or turning off your speakers while recording.