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Double_H
06-11-2004, 04:08 PM
Hi ..
Im a Big Fan of Adventure Games
But i have a Problem with the sound while running Dos Box
i have windows 98
i dont think i have soundblaster ..but i have VIA audio Controler
and i dont know how to Find my I/O and IRQ

any help ????

Tom Henrik
06-11-2004, 04:51 PM
DOSBox uses 7 IRQ as standard. Either that or 5.

Double_H
06-11-2004, 04:56 PM
Originally posted by Tom Henrik@Nov 6 2004, 04:51 PM
DOSBox uses 7 IRQ as standard. Either that or 5.
i meant i dont know what is My sound card IRQ

How can i find it?

Eagle of Fire
06-11-2004, 05:11 PM
If you have no clue, trial and errors should do the trick. That's what I did all the way back in the old days...

Be sure to write it up somewhere when you do find it tough... ;)

Unknown Hero
06-11-2004, 05:25 PM
Try every option available in game setup! On that way you'll find your IRQ! :ok:

Tom Henrik
06-11-2004, 05:26 PM
When you use DOSBox, you don't have to worry about your own soundcard.

It uses SoundBlaster.

Fenris
06-11-2004, 05:31 PM
I am not a DosBox expert but it does not matter which IRQ is used by your Soundcard. DosBox will emulate a virtual SoundCard. So the game will send all Sound Information to DosBox which will redirect it to your SoundCard automatically.

When you start DosBox there you will be several lines prompted, one of them should look like this:

Z:\>SET BLASTER=A220 I7 D1 H5 T6

Now a short instruction on how to configure the Sound for a Dosgame played with DosBox:

220 => I/O Address
7 => IRQ
1 => DMA Channel
5 => High DMA Channel (if needed)

I hope this will help you.

aaberg
06-11-2004, 08:37 PM
Fenris is right, no matter what hardware you have, you have a 8 bit or 16 bit soundblaster in dosbox. It's the same with memory and CD drives. No matter what your hardware is, dosbox turns your computer into a 286 or 386 with standard emulated hardware.

FreeFreddy
06-11-2004, 08:43 PM
Originally posted by aaberg@Nov 6 2004, 10:37 PM
No matter what your hardware is, dosbox turns your computer into a 286 or 386 with standard emulated hardware.
Well, that's not entirely right I think. It depends actually on your machine how fast the emulation will be. The slower it is, the slower the emulation speed. Thus you can also say, the slower the emulated computer.

aaberg
06-11-2004, 09:19 PM
Of course the emulation speed depends on the computer, but if you have a fast computer, you can always turn the speed down in dosbox. But that was not what I meant. What I meant was, that your other hardware (Soundcard, cd drive, processor type, etc) is a standard in Dosbox, which almost every game works on.

Rogue
07-11-2004, 05:35 AM
Same thing with Virtual PC, emulates generic hardware (SB, Trio S3...).

One thing I did notice is speed. On my laptop (P4 2.4GHz) running DOSBox at 3000 cycles shows in PC test (in configuration menu of Cannon Fodder game) that is 386 with about 88MHz clock speed. Changing cycles changes multiplier. (*4.77)

Double_H
07-11-2004, 03:17 PM
Thanks Guys ....So i dont have to worry about My sysyem Sound Card ???
Then why does the sound is soo annoying
and its somewhat slow

Eagle of Fire
07-11-2004, 05:28 PM
Maybe because you have an onboard sound card instead of a real one.

Ioncannon
07-11-2004, 06:44 PM
nope that can't be the prob, I have an onboard and it works fine

FreeFreddy
07-11-2004, 06:55 PM
Originally posted by Double_H@Nov 7 2004, 04:17 PM
Thanks Guys ....So i dont have to worry about My sysyem Sound Card ???
Then why does the sound is soo annoying
and its somewhat slow
How exactly is it annoying? And what's slow? The sound or the games?

Ioncannon
07-11-2004, 07:05 PM
well games can run slow from the defult speed. Raise it in the config file.

Fenris
07-11-2004, 07:21 PM
Maybe it is because you raised the CPU cycles. When I raise them I often experience corrupted sound. Sounds a little bit as if I DosBox would skip single notes.

FreeFreddy
07-11-2004, 07:42 PM
But only if you raise it too high for your PC. Then instead of being faster, it'll become slower again, just as if you would lower them.

Fenris
07-11-2004, 07:52 PM
Yes i know this effect but this happens allready with a few thousand cycles more and it's just the sound who becomes jumpy. The graphics become faster.

Eagle of Fire
07-11-2004, 10:01 PM
I had that problem too when playing Lemmings 2 - The Tribes. At first I thought the game was running too fast even at the default cycle because the Lemmings were "walking" quite fast to my taste. So I got the cycles stupidly low (in the 100ish) before noticing a real slowdown effect, and the sound was very choppy along with the game. If I remember well I could not even see where my mouse cursor was because the game could not refresh fast enough for my moves... :crazy:

Double_H
08-11-2004, 03:55 AM
i get a corrupted sound
and slow down in the game

so should i increase the Cycles???!

Eagle of Fire
08-11-2004, 05:17 AM
Yes. Please remember that this is extremely computer dependant, so my own cycles could not work for your own computer or, at the very least, not be the best setting you could have.

I think that if you have a computer slower than one gigahertz you may have trouble running the "newer" old games...

FreeFreddy
08-11-2004, 12:38 PM
With only 1 Ghz you only would be able to play some ancient, crappy, cheap on graphics games or some text-based ones... <_<

Eagle of Fire
08-11-2004, 05:00 PM
But you should not have problems running UFO or Lemmings 2 tough... :ok:

Double_H
09-11-2004, 03:57 AM
unfortuntly i have less than One GHz .....oh well :D