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cytrek

Joined: 29 May 2009 Posts: 25
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Posted: Mon Feb 08, 2010 11:41 pm Post subject: Just want to make sure.... |
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but, how many computer keys can OMPT handle at the same time when trying to play chords with the computer keyboard? I think I remember being able to do more maybe, but now I can only do 2 or three at most. Can someone confirm this for me. Thanks  _________________ //// |
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djmakas

Joined: 17 Sep 2009 Posts: 86 Location: Hermosillo
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Posted: Tue Feb 09, 2010 12:07 am Post subject: |
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Me too, but I think that this is an overflow when pressing some keys, many internal commands at the same time of the keyboard . I don't kwnow really.  |
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Sam_Zen Super Moderator

Joined: 14 Oct 2005 Posts: 3690 Location: NL
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Posted: Tue Feb 09, 2010 12:09 am Post subject: |
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All valid keys can be pressed and heard, at the same time afaik.
But don't count on a proper representation when writing like that in the pattern. _________________ 0.618033988 |
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cytrek

Joined: 29 May 2009 Posts: 25
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Posted: Tue Feb 09, 2010 12:19 am Post subject: |
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hmm, I wonder what the difference is between your setup and mine. I want some more input from people. I don't think I'm alone on this. _________________ //// |
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Rakib

Joined: 10 Oct 2005 Posts: 540 Location: NO
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Posted: Tue Feb 09, 2010 12:30 am Post subject: |
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From the earliest version till now with windows 7, more than 2 finger. tried with 8 fingers now. Both in samples and intrument window. _________________
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cytrek

Joined: 29 May 2009 Posts: 25
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Posted: Tue Feb 09, 2010 12:48 am Post subject: |
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well here are some chords that I can't play at the same time with the computer keyboard... for some reason.
c5# d5# d4#
a5 b5 d6 e6
There are more combinations, I just put these as an example. Also I'm using the Fast tracker keyboard layout, I dunno if that has anything to do with it. _________________ //// |
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cytrek

Joined: 29 May 2009 Posts: 25
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Posted: Tue Feb 09, 2010 2:01 am Post subject: |
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well I can't figure this one out. I tried using different keymaps, etc. but get the same results. Anybody have an idea of what could be wrong? _________________ //// |
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psishock

Joined: 31 Jul 2008 Posts: 1165 Location: the internet mostly
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Posted: Tue Feb 09, 2010 4:10 am Post subject: |
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yep, i know this one really well. Its hardware issue, the way "average" keyboard matrix circuits are designed.
You may want to google and read up "keyboard ghosting". A good solution would be to get a keyboard that is engineered without this handicap. _________________ I'm as calm as a synth without a player. (Sam_Zen) |
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cytrek

Joined: 29 May 2009 Posts: 25
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Posted: Tue Feb 09, 2010 4:46 am Post subject: |
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Damn, your good! I would have never of guessed that one. Well I'm kinda screwed for now, until I get a new laptop without this handicap cause I don't like using midi keyboards. _________________ //// |
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Jojo OpenMPT Developer

Joined: 07 Aug 2006 Posts: 3359 Location: Germany
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Posted: Tue Feb 09, 2010 6:21 am Post subject: |
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Thank you psishock, for finally posting facts, and not assumptions...
You might want to read this wikipedia article (if you haven't found it via google already) and consider buying a n-rollover keyboard (however, they're rare and expensive AFAIK).  _________________ No support, bug reports, feature requests via PM - they will not be answered. Use the forums.
» Download music, samples, vst plugins: Saga Musix Website
» Official German OpenMPT Wiki
Last edited by Jojo on Tue Mar 09, 2010 4:38 pm; edited 1 time in total |
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LPChip Site Admin / Site-Builder

Joined: 01 Jan 1970 Posts: 4092 Location: The Netherlands
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Posted: Tue Feb 09, 2010 11:59 am Post subject: |
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Indeed. If you're looking for a keyboard that has this, you might want to look into a gamers keyboard. Games often require 3 or more keys to be pressed simultaneously. Additionally, I think PS/2 design can actually have a limit. I am not entirely sure, but I believe I learned about this in college. So USB would be the way to go. _________________
"Heh, maybe I should've joined the compo only because it would've meant I wouldn't have had to worry about a damn EQ or compressor for a change. " - Atlantis
"yes.. I think in this case it was wishful thinking: MPT is makng my life hard so it must be wrong" - Rewbs
"I'm not sure how to fix it yet and I don't have time ATM anyway! (gotta finish my new website godverdomme!)" - Jojo |
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Jojo OpenMPT Developer

Joined: 07 Aug 2006 Posts: 3359 Location: Germany
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cytrek

Joined: 29 May 2009 Posts: 25
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Posted: Tue Feb 09, 2010 7:52 pm Post subject: |
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From what I've found is that the USB protocol can only support up to 6 key rollover, and if you want full n-key rollover, you have to use a ps/2 adapter(lame). It looks like my chances of getting a laptop with full n-key support are slim to none. It's 2010 dammit! All keyboards should have this ability. .... All these stupid companies with their "it's cheaper" B.S. Well I'm thinking of just getting that nano keyboard thing or just dealing with it. I just don't like having all these cables around me, annoying. Thanks for all the input! _________________ //// |
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Jojo OpenMPT Developer

Joined: 07 Aug 2006 Posts: 3359 Location: Germany
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Posted: Tue Feb 09, 2010 8:03 pm Post subject: |
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I doubt that you'll get full n-key rollover in laptops anytime soon. Even when working on the laptop (and that's my main machine), I still use my good old keyboard, but that one's not n-key rollover as well. but i can use two keyboards at the same time then, which helps a bit with the jamming! _________________ No support, bug reports, feature requests via PM - they will not be answered. Use the forums.
» Download music, samples, vst plugins: Saga Musix Website
» Official German OpenMPT Wiki |
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LPChip Site Admin / Site-Builder

Joined: 01 Jan 1970 Posts: 4092 Location: The Netherlands
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Posted: Tue Feb 09, 2010 9:29 pm Post subject: |
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| cytrek wrote: | From what I've found is that the USB protocol can only support up to 6 key rollover, and if you want full n-key rollover, you have to use a ps/2 adapter(lame). It looks like my chances of getting a laptop with full n-key support are slim to none. It's 2010 dammit! All keyboards should have this ability. .... All these stupid companies with their "it's cheaper" B.S. Well I'm thinking of just getting that nano keyboard thing or just dealing with it. I just don't like having all these cables around me, annoying. Thanks for all the input! |
Are you sure? My Logitech G15 keyboard (USB) has 8 keys. _________________
"Heh, maybe I should've joined the compo only because it would've meant I wouldn't have had to worry about a damn EQ or compressor for a change. " - Atlantis
"yes.. I think in this case it was wishful thinking: MPT is makng my life hard so it must be wrong" - Rewbs
"I'm not sure how to fix it yet and I don't have time ATM anyway! (gotta finish my new website godverdomme!)" - Jojo |
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