PC audio to Bluebox input

[Dcramer]

Although the BlueBox has a host USB port (I use mine for a Keystep keyboard) I do not believe that you can transfer live audio down the USB and have it recorded.
the only way to get your computer audio into the BlueBox would be to use an audio cable from the computer’s output into the BlueBox.
Cool thing though; because the BlueBox has stereo inputs, it would be easy to run a single 1/8 inch TRS (on both ends) from the computer to the BlueBox and record in stereo

[Wolfie]

Can anyone suggest how I can get the audio I play on my PC via synth software to go to an input on the bluebox to record?