Message 2/11
Date: 18-Nov-05 @ 04:25 PM -
RE: Question about Logic
well, the 'groove' or quantise which is created from the audio part is unrelated to actual midi notes.... if u use a sequencer nd create a pattern you can apply a certain quantise to those notes, and that same quantise can be applied to any midi pattern... that's how quantise works, it's UN-related to the actualk pattern, it ONLY relates to the distances between notes at intervals such as 16ths... a 16th quantise for example will push or pull notes OFF the straight 16th sub-beat and either push them forward a fraction or pul them back a fraction... etc
so what the Logic process works is it analyses the audio part and just as it would when making slices if you want to chop up the audio loop 'Recycle' style, it analyses the transient peaks in the audio loop... If you have edited a drum loop so it loops perfectly at a tempo of say 130 bpm when placed on your sequencer track and looped, then you have a 130 bpm loop - Logic anaylses the loop starting at beat-1 and looks to se where the peaks are along the loops linear length, and it looks to see how those peaks line up compared to a straight quantise division based on say 16th divisions... now
Now... if you had a drum loop of a drummer playing a simple beat holding down a 16th hi-hat pattern in the beat, the drummer MIGHT be slightly dragging the hat pattern in places to add swing... so when Logic analyses the loop, it says: "Aha!... the hi-hat is on the beat for the 1/4 note divisions, but is behind the beat for some of the 16ths"....
anyways, the quanrise is created by analysing the audio peaks... this is then stored as a quantise setting
logic quantises on the fly... in other words, if you make a straight 16th hat pattern, and then apply a swing quantise to that pattern, it plays with a swing, but, if you turn OFF the quantise & open the pattern and look at the 16ths, they are exactly on the beat as when you made the pattern... in other words, logic doesnt actualy shift notes in the pattern when quatise is applied, it plays the pattern THRU the quantise and they come out on playback with whatever quantise has been applied to that whole midi Track or individual midi part or a group of midi parts.
so, do you get it?... the quantise doesnt tell you WHERE the notes must be in a pattern; it simply applies a quantise to ANY midi pattern... that way, you can steal a groove from a cd loop and apply that 'feel' to your own new pattern.
thats the theory of it, not the actual method tho. That I can show you, but it'd best be done with pictures or as a video tutorial. Sadly i have exams coming up until the end of the month and into early december, so i dunno i'll have time to do that before the second week in december... mebbe i can, i've got to check a few things about the exams next week to set my schedule
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