I have encountered a strange problem with Planetary Annihilation: Titans I can't hear any kind of audio even though I tried restarting the game/my computer, setting my audio higher. The ingame Audio settings are set to max but no audio in title screen/ingame, etc. I use win10. I don't have any of the incompatible software.
Audio fails to initialise during boot. Does sound work if you change the default audio device to the Realtek or Bose?
Can you try with all the USB audio devices unplugged and just the Realtek set as default. You might also want to review your paging file size and RAM with only 8GB. eg remove the 4GB of shared VRAM so you're just using the 4GB dedicated in the 970.
That didn't fix the problem too. There's still no sound. RAM doesn't change anything too. Tried that. No sound at all.
There are a couple of possible causes for that error: out of memory (check your free memory before starting PA, paging and shared VRAM allocation of 4GB) corrupt audio files (https://wiki.palobby.com/#Verify_Your_Game_Files_Before_Reporting_Issues)
I checked the RAM and there hadn't been any problem with that. I also verified the osund files via Steam file checking system. Unfortunately without any positive result.
You already mentioned looking at the incompatible software list, but did you also try the clean boot option? https://support.microsoft.com/en-us/kb/331796
Can you please add the command line option --audiologging and we might get a little more info out of FMOD in the logs.