failure to launch - FMOD sound system error 51

I am getting an error when launching the game, whether with the launcher or skipping the launcher. The error reads: Failed to Initialize FMOD sound system. Error code = 51 (Error initializing output device.) This began around 9/14; before that I could play Sins2 without any problems.

I followed advice in a steam support post about this issue, but so far have been unable to get past the error. I have tried:

• rebooting computer
• validating the game files in steam
• uninstalling the game and deleting the settings folders, then reinstalling
• updating sound and video drivers
• unchecking "allow applications to take exclusive control of this device" in default audio output device
• disabling all sound output devices
• unplugging all USB devices
• disabling all audio devices in device manager

 

Error screenshot: https://imgur.com/a/b7KRbHS

Log: https://pastebin.com/Nxkvx5b9