-simsound
From FTE
-simsound
This switch will disable sound playback but simulate sound playback for code
testing. When this switch is used the game will function as if sound is being
played back normally, except that the sound card will not be initialized and
nothing will be heard from the speakers. This command will cut off the sound
information right before it is about to leave to the sound card for processing.
This command was used for testing the sound code in the game.