Exchange tips and tricks for the Akai MPC4000
By head034 Sat Jun 04, 2005 9:13 pm
Hello,

I sampled this open bassline off vinyl and put it in recycle to slice. Now the thing i am trying to do is use the orignal 4 bass slices plus make the same 4 slice a pitch up..example: the bass notes are A B C D in one octave..but i want to also change the C note to a G note and use it with same tempo just a different pitch to get to the G

Basically trying to scale the sample seeing as they only gave me these 4 notes on the record and not the other notes (E F G), plus not an octave higher or lower..

Then save each of the notes to put back into the MPC so i have at least to octaves of the notes to play of that sound..

any help is greatly appreciated

Thanks

Head034

PS: kind of like the 16 level multi pitch, but the sound will not be mangled to bad!
User avatar
By retro Sun Jun 05, 2005 12:54 am
first i will post this link. im sure most of us on this site have seen it, but here it is.

http://mp3.deepsound.net/eng/samples_calculs.php

its a bpm calculator, but it should help you firgure out how much to pitch the sample to get those different notes. just remember what note the original sample is. Now let me see if i can explain this right. Here goes...

ok...you say you have 4 notes that you chopped up in recycle. i will assume you have a 4000 since you posted this in the 4000 section. now (so i dont get confused, instead of notes (a,b,c) i will use numbers (123) in order to explain.



lets say you have three sounds. sounds 3, 6, and 9. what you want to do is get perfect loops for those three sounds. just edit them in the sample edit page. once you do that. set up a key group with those notes are on the keys they are supposed to be on. now, lets say you have ten keys in one octave. sound 3 should be tuned to accordingly for the keys below it, which would be 2-1/2, 2, 1-1/2 ect, within that octave. so now you have all keys from 1-3 playing their notes. after that, do the same with sound 6, and sound 9. now, use your judgement, and firgure out how far you can tune up, or down, that sample, before it starts to sound crazy or distorted. and also figure out, what direction you are gonna tune the sample, up or down. ok. now this is the part you are asking for.


you can pitch shift the sample. but you have to be smart about that part. if lets say you have the one octave covered. and you want lower octave to play with. what you should do then is, use the two lowest samples, out of the four you have, to pitch shift, so that the distortion wont be that bad. this way, the amount of pitch shifting you would have to apply to the samples wont be that much. same goes for the higher octave. use the higher notes to cover that range of notes, and the results shouldnt be that bad.

now when you are pitch shifting, try and do as little as possible. so if you want the lower octave, you would be using, (going back to my exampleusing the numbers,) sounds 6 and 3. but you dont have to pitch shift the sounds all the way to point you left off at while tuning the sounds down to fit in the lower octave.


lets say you were able to take sound 3 (key three) all the way down to key 5, in the lower octave. then you could pitch shift sound three about halfway, or halfway between key 3, to the lower key 5, so that the distortion wont be that bad. then just tune it down to fit in the rest of the lower octave.

:?

hope that helps.

By head034 Mon Jun 06, 2005 12:26 pm
Retro..I am following you..But, how would I accomplish this using recycle..so I take one guitar note off a record and stretch/pitch it, and save each of the individual pitched/stretched notes in recycle to load in the MPC...Kind of what I heard the VP9000 is good for..

head034