Error with Xaudio_2 Library in Windows 7 Service Pack 1

Of course you have to update your OS? Anyways, it works for me without a bunch of updates installed. SP1 is probably a must though.

Some peoples have this type of mentality: "If it works, why fix it?", I'm one of them so that's why I never considered in updating Windows 7 with the recent updates. I never had issues with any other emulators before and I have used and tested almost all emulators available that we have till now, I've been using emulators since 1997.

RPCS3 is the only emulator that gave me problems with the Xaudio2 thing so I was forced to update Win7 because of it. SP1 is definitely a must but the requirements on the RPCS3 website alone won't fix this issue even if you have SP1. Someone needs to update the RPCS3 website and tell them to also update their Win7 if they are still having issues with Xaudio2.

Maybe hes have some missing files or corrupted. usually newest direct x runtime should help

If not use openal backend for the time being

That's an option but OpenAL is not worth it, too many issues with that backend, it's also slow and buggy. Maybe that backend will get better over time but for the time being the easiest solution is to just update Win7 to fix Xaudio2.