These are the steps,if you want to be able to hear the datastream from the datasette.
1.Press Windows Key and R to open RUN window and type mmsys.cpl
Or right click on the speaker icon and select recording devices.
Double click USB microphone,go to Listen tab and tick the Listen to this device box.
Go to playback devices and set your own speakers as default.
With this configuration,you can listen to whatever is coming from the tape.
DO NOT use listen to this device feature if you are going to record a game to tape.You have to disable it.