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Author Topic: Amiga emulators: is it worth it?  (Read 20523 times)

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Offline KThunder

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Re: Amiga emulators: is it worth it?
« on: January 19, 2009, 08:09:26 PM »
if you have any problems setting winuae up on your own from a download, get amigaforever. it is an awesome package that takes 99% of the guesswork out of running an emulated amiga.

there are two sources of latency that you may notice but only if you are doing some pretty intense stuff with your emulated rig.

the first is frame rate. the amigas (and uaes ) chipsets are locked to the video frame. and there some things that break or dont work correctly if the frame rate is changed. for example with lower video modes you cant set your audio rate to 41khz because paula is locked to the video rate. it is limited to like 22khz or so, but if you change to 640 ntsc or 512pal modes you can set your audio higher.

where this becomes a problem is with the pcs video. your video card is probably scanning at somewhere between 70 and 120hz where the emulated amiga is locked to 30. 30 goes evenly into 120, but not 70, or 75 85 or many of the other refresh rates svga modes use.

that makes smooth scrolling amiga games look jumpy even if the pc is 1000times faster than an amiga simply because the frame rates arent divisable.
change your pcs video refresh to one divisible by the miggies frame rate and it will look much better.

the second latency problem is audio latency and also isnt winuaes fault. a midi stream has a long way to go between a midi (or other device) and the emulated amiga. there are decent sound cards out right now that are close to the 13ms latency mentioned, because of poorly written drivers etc. throw an emulation monkey wrench into the works and you wont even be close. many pc sequncing etc. software can test latency and time for it. as far as i know there is no way to do this with emulated amiga programs.

i used to use winuae for desktop stuff and dosfellow for games with very decent speed on a 333mhz k6-2 computer. it is very doable on any of todays computers

sorry for the book  :roll:
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