Emulator

At certain build the audio started to be sync to fps.
For sure, this is very good at cut scenes and etc, but there is another thing.
After that most of games turned out to have a cracking sound everywhere while gameplay.

Once fps drops below 100% sound starts to crack.
Even such games with poor graphics like Skies of Arcadia has a cracking sound...

I used HLE with XAduio2 and DSound. The first one cracks even more than second.

Before that I used to play graphics rich games like Resident Evils, Xenoblade, The Last Story and etc, the sound was nice, since there were no audio sync.
Now sound is terrible.

I can't say my PC is that bad to run game nice:
Intel Core i5 660 3.3 GGhz / Radeon HD 5750