Lots of people complain of crackly sound, which I have never experienced.
/quote]
And it's strange, but it's good for you
You need a fast processor (1.2GHz+) and a modern sound card.
.... And you don't have ( full hardware) sound card, because Avance AC'97 is only a codec, half of sound card (better to say "a small part of...") Only thing it does is converting digital signal to analog and vice versa. But it can't
do signal processing, it requires DSP - digital signal processor and 3D sound (DS3D,A3D,EAX, especially EAX2 and A3D 2-3) requires very powerful signal processor. Vortex2 and SB Live-Audigy (EMU10Kx) DSPs can be compared to Pentium-200.
So when mb manual says "Onboard AC'97 audio, supports DS3D, A3D 1.0, EAX 1.0 blah blah" - it's most outrageous lie, because your granny's SB16 can support 3D sound that way - by software emulation.
In case of cheap onboard AC'97 "sound cards" DSP is emulated by main CPU.
So when very "cpu-hungry" program is running (N64,PSX emulators, MAME, Unreal 2 and rest of modern games) there's no CPU resources left, CPU is loaded up to 98% by game (emulator), so these cracks, ñhirps and other noise
appears.
Solution - to buy hardware sound card
Even cheapest CMI8738 is waay better in all aspects (sound quality, CPU load )
than sole AC'97 codec.
And N64 emulation doesn't have any special sound card requirements :
any card that support DirectSound will work. Old ISA AWE64 or newest Philips Audiophile - all will work ok.
I think it's a bit too early to be looking for perfection considering the relative difficulty and the relatively brief time that emulating the N64 has been viable.
Yep. Some games is still not emulated and audio plugins must polished a bit.