Note: Space Engineers does not currently support changing audio devices during the gameplay.
Problem: Music plays in main menu, but not in game. (Please bear in mind, that during the alpha stage of development, the game will not have all sound effects implemented)
Solution: This is caused by SoundBlaster drivers, which breaks XACT sound processing. You need to disable all sound enhancements in SoundBlaster driver properties.
BLACK SCREEN, NO MUSIC, NO SOUNDS
Reason: Soundbank loading failed, log file contains information about sound banks in the end
Solution: Reinstall game on internal HDD, best would be system drive. This is XACT issue, we will replace XACT with XAudio2 in future. XACT is deprecated.
Problem: When there is no sound and there is ‘BadImageFormatException’ in your log file
Solution: DirectX is probably corrupted and you will have to reinstall it. You can find more info how to do it here: http://www.spaceengineersgame.com/game-will-not-start-issues