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turbotwist 2 choice - USB vs PS/2
RandyT:
--- Quote from: spelosi on February 28, 2007, 10:17:10 am ---
--- Quote ---The first is that your mouse speed needs to be set to the lowest position under any version of Windows. Any other settings will cause more data to be kicked through to the games than is actually coming from the spinner and will cause problems. You should probably try your tests again at this setting to see how things improve.
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Unless I did something wrong (I mave very limited experience with dual mouses) I found setting the mouse speed to the the lowest is not practical. Both mouse devices seem to share the same settings. Setting the mouse to the lowest resolution makes my trackball useless.
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Even so, by not setting it to the lowest speed (which is 1:1) you are changing the output of both your spinner and your trackball. The whole dynamic changes with higher settings, and is generally considered undesirable for the sake of accuracy.
The reason your trackball moves so slowly on the desktop at 1:1 is because arcade trackballs have very low-res encoder wheels in them. The EI trackball we offer has had the encoder wheels replaced so that addresses this concern. You can also replace the encoders in your own trackball using the kit we offer, or you can make your own.
A trackball is not designed to be a PC mouse, so you can't really expect it to perform the same way without modifying it to.
RandyT
spelosi:
--- Quote ---Even so, by not setting it to the lowest speed (which is 1:1) you are changing the output of both your spinner and your trackball. The whole dynamic changes with higher settings, and is generally considered undesirable for the sake of accuracy.
The reason your trackball moves so slowly on the desktop at 1:1 is because arcade trackballs have very low-res encoder wheels in them. The EI trackball we offer has had the encoder wheels replaced so that addresses this concern. You can also replace the encoders in your own trackball using the kit we offer, or you can make your own.
A trackball is not designed to be a PC mouse, so you can't really expect it to perform the same way without modifying it to.
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How does adding higher-res encoding wheels help to more accurately replicate the arcade experience if arcade trackballs have low-res encoders?
what's the benefit of turning down the mouse speed in windows, only to make it more sensitive by changing the encoder wheels?
I'm not trying to give you a hard time -btw. I'm really am trying to understand this.
Thanks,
Steve
RandyT:
--- Quote from: spelosi on February 28, 2007, 12:37:59 pm ---How does adding higher-res encoding wheels help to more accurately replicate the arcade experience if arcade trackballs have low-res encoders?
what's the benefit of turning down the mouse speed in windows, only to make it more sensitive by changing the encoder wheels?
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I don't think anyone ever stated that higher res encoder wheels on a trackball would specifically more accurately replicate the arcade experience.
But as stated already stock arcade trackballs suck (you can literally hear the whooshing noise :) ) at the desktop level when the speed is set where it is supposed to be set, at 1:1.
In MAME, you can set the sensitivity to what you want, so you can divide the higher res trackball back down to arcade authentic levels, if you want. With replacement encoders, you would have all of the following:
A) A faster, more accurate mouse pointer in Windows
B) The ability to make the output arcade authentic
C) Better compatibility with other types of PC games which expect the higher resolution a mouse provides.
Cranking the speed up in Windows, is exactly like boosting the sensitivity in MAME to over 100%. Things move faster, but at the expense of precision.
RandyT
spelosi:
Ok, I get it now. Thanks.
One more thing I've got to order for the cab!
rockin_rick:
--- Quote from: RandyT on February 28, 2007, 12:12:27 am ---The first is that your mouse speed needs to be set to the lowest position under any version of Windows. Any other settings will cause more data to be kicked through to the games than is actually coming from the spinner and will cause problems. You should probably try your tests again at this setting to see how things improve.
The other thing is to be careful not to set the sensitivity settings in a game too high. Tempest is a real stickler about this. It used an encoder having only 72 apertures at 1x for a full rotation of the spinner!. It should always be set to 6 (perfect divisor) or below. If your mouse speed under Windows was set to "middle", even a setting of 6 could cause big problems.
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With the TT2 in USB mode and the 250Hz mod in place, I just tried setting the pointer speed to each minimum, middle, and maximum and tried tempest at 6% and there was no difference in the speed of the 'crab' (?). It moved five spaces for one complete revolution of the TT2 each time. (This 'spec' was provided here: http://forum.arcadecontrols.com/index.php?topic=23967.msg201068#msg201068) I was sure to pick the correct speed and click OK to close the mouse properties and then load the game with mame32. The mouse speed adjusted properly after choosing the speed - IOW when it was at minimum I had to pick up the mouse 20 times to get it to where it should be to load tempest along with the spinner moving the mouse really slowly, too. Is this not normal and is something up with my setup? It appears that mouse speed has no effect.
I also tried this with the 250Hz mod removed - using the default 125Hz with the same results. I could tell no difference between different mouse speeds in tempest, warlords, offroad, kick, super sprint.
I also checked out backspin issues in those games in 125Hz USB mode. There wasn't really much of a problem during gameplay (as I mentioned before). I think that I did have the sensitivity in tempest set too high/higher than normal. I only noticed the backspin occasionally in tempest when really cranking on the spinner at the end of a level (not important) and it was also not too (but somewhat) noticable when entering initials in tempest. Definately manageable/acceptable if you are not able to mod the update rate. I still would change it to 250Hz USB or go with PS/2, as it will alleviate those minor backspin issues - why not make the TT2 work perfect, it doesn't cost anything to change that!
I still would appreciate input about different mouse speeds not effecting mame, though...
Thanks,
Rick