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Mark Blair Jam Meister

Joined: 21 Aug 2007 Posts: 87 Location: Florida, USA
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Posted: Fri Feb 11, 2011 12:25 pm Post subject: How does importing non-quantized MIDI data really work? |
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I like using the Import Style so as to breathe life into a static MIDI clip. However, I'd like to be enlightened on how Jamstix treats the un-quantized data (assuming I chose on the options page not to quantize imported data).
For instance, if the input has a bit of swing to it, does the JS importer know enough to figure that out, or does is perhaps just offset the "swung" note statically from a particular 16th note beat?
And then how would it work if I wanted to use one of the various JS swing-related setting to alter it further -- for instance, reducing the "swing" of the imported clip (or making it even more "swung")?
I guess I could just do more experimenting and try to figure out how it works -- but I was hoping to find out if anybody else has investigated this first (yes -- perhaps I'm being a bit lazy here)... |
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Ralph [RZ] Site Admin

Joined: 02 Jan 2008 Posts: 13332
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Posted: Fri Feb 11, 2011 1:52 pm Post subject: |
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Unquantized MIDI import records slight timing variations in the timing offset of JS so the note is still quantized per the 16th grid but the offset preserves the timing difference.
Do not use shuffled MIDI clips for import as this will confuse JS. JS expects bar data to be unshuffled and then, if you select 'Shuffle' in the song sheet, it will take care of it. _________________ Ralph Zeuner
Rayzoon Technologies LLC
http://www.rayzoon.com |
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Mark Blair Jam Meister

Joined: 21 Aug 2007 Posts: 87 Location: Florida, USA
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Posted: Fri Feb 11, 2011 2:14 pm Post subject: |
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But I guess I could still import a MIDI file that already incorporates swing -- as long as I didn't want to alter those swing characteristics with any of the various JS swing-related settings -- is that correct?
And then JS could "vary" the rhythm a bit (as indicated in your excellent MIDI groove creation video)? Or does the failure to quantize on import cause me to lose a lot of future "rhythm variation" flexibility? |
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Coises_foiled_again Jammer

Joined: 02 Feb 2011 Posts: 26
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Posted: Fri Feb 11, 2011 4:39 pm Post subject: |
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| Ralph [RZ] wrote: | | Do not use shuffled MIDI clips for import as this will confuse JS. JS expects bar data to be unshuffled and then, if you select 'Shuffle' in the song sheet, it will take care of it. |
Sounds like Detect Shuffle in MIDI Import would make a good future enhancement. With or without quantizing set, it could determine the “best fit” shuffle, trying both 8ths and 16ths, then set the part shuffle slider and the timing offsets accordingly. |
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Ralph [RZ] Site Admin

Joined: 02 Jan 2008 Posts: 13332
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Posted: Sat Feb 12, 2011 10:59 am Post subject: |
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That is something we hope to do in the future. _________________ Ralph Zeuner
Rayzoon Technologies LLC
http://www.rayzoon.com |
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Mark Blair Jam Meister

Joined: 21 Aug 2007 Posts: 87 Location: Florida, USA
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Posted: Sat Feb 12, 2011 6:43 pm Post subject: |
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| It would be nice to have MIDI-import work as intelligently as possible. There are so many ways to use MIDI clips as a starting point for developing a full drum track -- and it would be good to lift as many limitations off this valuable process as possible. |
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