Technical questions for the MPC2000xl and the MPC2000
By shawncurtin Sat Aug 01, 2009 6:05 pm
Recently I tried to sequence a basic two bar loop (i.e. a drum break) with quantizing on. However, I've had some difficulty getting the loop to sound seamless. There always seems to be a small gap in my loop no matter how much I tweak the BPM of the sample. What am I missing here? Is it better to sequence loops without quantizing selected?

Thanks for any help on this topic.

-Shawn
By _Stilo_ Sun Aug 02, 2009 12:22 pm
So it is one single sample you want to loop? There are a few things to try.

I would recommend not using quantize for that. It will always place your sample at 01.01.00. Play around with the position in the sequence where the sample is triggered, just a few ticks (Step Edit).

Then you can play around with the start point of your sample in Trim. Maybe there's too much air in the beginning. Make sure your sample is properly trimmed. You can check that in the Loop screen while trimming, setting the Loop points to the Start and End points and hear if it sounds right.

Hope that helps.
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By Lampdog Sun Aug 02, 2009 1:56 pm
Proper chopping [easier on the first downbeat on a loop ie, 01:01:001]

Proper placement [if loop starts on the first downbeat it's easier, but before/after the first downbeat loops are trickier
To me is what Stilo was talking about, a little trickier]

Proper bpm [match the loop to the bpm as close you can - while it's playing the loop]

Proper tune [then tune/fine tune as close as you can - while it's playing the loop]

Zero point crossing [helps to eliminate any pops/clicks. Pops and click are cause by sharp volume changes when the loop loops around]

..will always get you a perfect loop. ..and not in this exact order either.

There is no cookie cutter answer for this, practice, practice practice.
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By Lampdog Mon Aug 03, 2009 2:14 am
http://www.rippletraining.com/zero_crossing_point_edits.html
http://en.wikipedia.org/wiki/Zero_crossing

Once you get the hang of it, it becomes second nature to find and use zero cross points
and you'll not hear pops and clicks ever again.

I bullshit u not, once I learned what it was and how to do it, I've NOT had a pop click issue since.
Not only for loops, can be used at the beginning and end of samples as well.
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By Dj Pound Mon Aug 03, 2009 9:13 pm
Just a suggestion. But try turning the pitch of your sample all the way down. Trigger the sample on a pad and truncate the start point until you get a perfect attack. You may of already done this. But precise trimming in these kinds of situations is a must :) As the waveform editing screen doesnt always give accurate readings!
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By mumkai Tue Aug 04, 2009 9:57 pm
im gonna try out Dj pounds idea. that sounds really cool.
i know about zero crossing, but how would you find the zero crossing on an MPC? i know how to trim a wavelength up with logic. However, in my 2kxl i mostly just TRIM, highlight starting point and hit open window. i try to find the exact point where the sample starts. of course if it doesnt sync up right i give or take a bit to find where the sample can sit right in the loop. if it still wont work then i chop the sample up equally and put each one on a pad. it gets pretty tedious, but i feel you have full control over the sample once you cut it up every 2 or 4 beats.
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By Lampdog Tue Aug 04, 2009 10:17 pm
Gaps at loop are because of improper chopping, bpm, tune.

Zero cross points help with pops and clicks.

Zero cross points can be properly viewed on a computer, cmon man, u knew that, lol.
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Re:

By mumkai Tue Aug 04, 2009 10:23 pm
Lampdog wrote:Gaps at loop are because of improper chopping, bpm, tune.

Zero cross points help with pops and clicks.

Zero cross points can be properly viewed on a computer, cmon man, u knew that, lol.



ok yeah...
my bad. i get ahead of myself and then think there some trim feature im totally missing out on or something... :oops:
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By Lampdog Tue Aug 04, 2009 11:06 pm
It's aiight, u live, learn, practice, fuk up, fuk up some more, get better, make nice beats....

That's how it all works, lol.
8)
By _Stilo_ Thu Aug 26, 2010 8:28 pm
youknowmysteeze22 wrote:Thats exactly what I was looking for and I searched for it. My question is about the wave length on the trim screen? If the wave length at the beginning of the loop is bigger than the end of it could that cause it to sound off and not loop right?

What exactly do you mean by "wave length"?