Forum to discuss all matters relating to the MPC1000 and MPC2500 operating systems created by 'JJ' (all versions).
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By Coz Thu Aug 23, 2012 2:22 pm
I think he's trying to create ultra smooth pitch changes while the sample plays. That's not really one of the MPCs strengths because of the lack of real time timestretch.
By foodeater Thu Aug 23, 2012 3:43 pm
Generally, you want to take care of this before you sample and make multi-sampled velocity and pitchmaps.

If you really want to work your samples in a synth like manner though, and don't want to use a computer, pick up one of the later model Ensoniq or EMU rack samplers. They are very deep with the modulation and while I'd love if the best of both came to JJOS it's not very likely or feasible.

As a sampler the MPC excels at chopping loops. Even for single drum hits I sequence them with the MPC, but create them on other samplers.
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By bliprock Thu Aug 23, 2012 5:03 pm
foodeater wrote:If you really want to work your samples in a synth like manner though, and don't want to use a computer, pick up one of the later model Ensoniq or EMU rack samplers. They are very deep with the modulation and while I'd love if the best of both came to JJOS it's not very likely or feasible.
This is not the answer. I do not think another bit of equipment would be as good as just learning JJOS.
JJOSXL instrument programs are very powerful if you learn to use them. If I can figure out what exactly OP is trying to do then I could probably help.
Velocity to LFO is not really an answer either. Obviously you mean to pitch right? We are talking about pitching a single sample like a multisample instrument. LFO will change pitch but not like multsample instrument at all. Unless you set it to bend up or down to the pitch wanted and this is not a work around here. More like a nightmare.
Coz wrote:I think he's trying to create ultra smooth pitch changes while the sample plays. That's not really one of the MPCs strengths because of the lack of real time timestretch.
I can pitch bend my instrument programs no worries in realtime. Quality is fine, in fact last track I did this it sounds like way too much like a synth but is in fact MPC with JJOSXL, so I do not beleive you Cos sorry :shock: :)
this is half finished to. For your info, I actually made this bass sound from the piano sample. I cut it out, looped it, ran it through some FX, then resampled it. then had to repitch it, as I held down the C key with my knee as I shifted pitch to match. Hey presto phat bass. Then add some real time pitch bend info - instant dubstep. I did not finsih it, and was gonna do something with LFO ect, but ran out of time. So I do not understand when people say it does not do this well, because when i do it, it sounds great. :?:
look more needless self promotion here > As per rules, there are no synths used in this track at all, Just MPC&JJOS and time.
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By Coz Thu Aug 23, 2012 5:17 pm
bliprock wrote:I can pitch bend my instrument programs no worries in realtime. Quality is fine, in fact last track I did this it sounds like way too much like a synth but is in fact MPC with JJOSXL, so I do not beleive you Cos sorry :shock: :)



You're missing the point.

Watch the Variphrase video (specifically the Legato part) and let us know how you can smoothly recreate this in the MPC without chopping, re-pitching and timestretching.
By elmacaco Fri Aug 24, 2012 4:35 am
Sounds like he wants auto tune of a sample but with pitch shifting in the mpc. Sustain a long sample andpreasing pads /midi keys will transpose it to a pitch shifted version.

Sounds cool. Dream sampler would have the Roland variphrase stuff and he ensoniqs transwaves.

I wondered why there was never an auto chromatic assignment with pitch shifted samples. Or a pitch shifter 16 levels.
By Jamon Fri Aug 24, 2012 5:26 am
It's a way to breathe life into sample-based instruments. There's tricks to use the filters and LFO to add variation. You can even use random cycling of samples now. This works okay for percussion. But for some kinds of instrumentation it's too repetitive and stagnant.

For example, if you wanted to sample a wind instrument, you could just blow a few Cs and drop it in a program. Then tweak with some modulation and you have a similar sound you can play. But, it's going to sound dead, like a mannequin. It'll repeat, feel predictable.

But what if you just blew a really long note, with motion and variance? Then instead of a handful of variations that repeat endlessly, you have an expansive sea of sound that never repeats.

Imagine if you had a long sound file like this:

[ -=-~~--==~`--===~~-=--=`-- ]

Then imagine if each note you played started from where you left off.
So you play a note for 1 second:

[ -=|-~~--==~`--===~~-=--=`-- ]

Now next time you play a note for that instrument, it plays the next part:

[ -=|-~~--|==~`--===~~-=--=`-- ]

But it also autotunes it, so no matter what note is in the sound file, it plays what you say.

You could just sample a minute of changing noise, and build an instrument like you would otherwise, with ADSR and modulation, but the underlying source doesn't just repeat from 0 every single time, giving predictable stale sound. Instead, it never sounds the same twice, but plays just like a normal instrument.

There's tricks to do this sort of thing, as we found and demonstrated in this thread. Depending on the source material, the sample start control could be used too. But it doesn't just work, no matter what, in a quick and useful way.

I'd like to see another instrument type, where instead of spreading samples across the notes, you just use 1 sample, and pitch it, playing where you left off, or randomly. It'd apply the same ADSR modulation type of approach as the current instrument, you just only use 1 sample, and it uses the chromatic tuning approach instead.

So, just in case it's still not clear, you sample yourself saying "1 2 3 4 5 6 ...", make a new instrument2, turn the field to select that sample, set the ADSR, portamento, filter, then press C and it plays "1" in the root note. You let go of the pad, and it fades out quickly, but this time when you press the pad for a C#, you hear "2" with the tune setting +1. Or, if you set it to play random, then you might hear "4", or the end part of "6".

Wouldn't that be neat?
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By bliprock Fri Aug 24, 2012 4:21 pm
TLDR again. compulsive obsessive much?
you know what would be neater, is if you did that instead of like writing all that above. Cos at a guess it would be about the same amount of time. You do know how much work goes into sampling these hardware and software Romplers and instrument libraries ect? A real lot.
What I am saying here is step back a bit. It is a real lot of work to make a mutilsample instrument that is really good isnt it? Like a lot of work say just for a piano, thats why it costs thousands to buy these top notch hardware and software versions to a degree. well more so the software ones, but if you know how they go about making them, you can see it is a lot of hard work to get it realistic. 88 keys multiplied by how man velocity layers. I know you are not going for realism, but I am trying to make you see the bigger picture here. You know that the MPC is a sampler but it is not multisample ROMpler with all the usual extras, like sympathetic resonace or hammer noise. Ok so do not expect a really hard thing to do, to be able to be done with MPC, instantly, just crazy to me. something as realistic as say a grand piano takes so much samples and other Fx to be remotely real.
So there are limits you must be aware of, and to thing that the JJos could do this somehow is a bit weird to me, as I know that this is not in the same league as modern software and hardware.

What you are saying can be done with work. So some tips for your boring lifeless instruments. Try LFO on envelope amp, pitch ect but with attack, velocity layer switching, layering samples in instrument that have different times, so one starts on note, but there is second sound later. Use random LFO. copy and paste pad settings to make your ownn instrument programs in normal program mode, not instrument, with pad cycle. Use pitch envelope to mimic real life transient behaviour.
So I can do what you are saying totally. Just takes work. like any skill or craft, you get out what you put in.
By elmacaco Fri Aug 24, 2012 5:12 pm
For what jamon is describing I think the Ndc can work. Use the qlink to randomize the chop, and either pre pitch shift your samples or just tune them chromatic.
By Jamon Fri Aug 24, 2012 7:05 pm
I actually started off trying not to write long, since your tl;dr-ing might explain why you keep talking about multisampling when that is not what I'm talking about, and it can't achieve the same effect. But without a whiteboard, voice, or video, it feels like it needs more detailed explanation to convey what is imagined, because all I have to talk with is text, and really what I need is to draw, and make sounds.

---------------------

Yeah, for adding variation to the instrument beyond what multisampling and modulation can accomplish the sample start parameter and chop might work.

But there are multiple uses for what was described. It's a quick way to achieve effects that otherwise would require a lot of work to setup and program.

For example, suppose you sample a 1-minute bass solo at the BPM of your sequence. With the legato instrument, you could play with it without chopping or programming.

It's already in time with your sequence, so if you only wanted some of the notes to play, you could simply use the root note as a gating effect that uses ADSR.

Then if you wanted to switch up some of the melody, instead of the root note, you hit any other pad to have it tuned up or down in semitones.

With a bass solo, you could chop it up, and manually tune some of the notes, and get a similar effect. But it's not exactly the same, is extra work, with less playability.

For example, what if I gave you a .wav of a bunch of C notes being played in the rhythm and time I want, but I want you to switch it up by changing the melody, and dropping some notes, but without changing the performance?

If you sampled a symphony or full band off vinyl, you could chop it up, and you'll get that very sample-music sound, with abrupt changes, and repetition. You could also do a lot of work programming to manually get it to flow while still making it your own.

Or, you could use the legato instrument, and play it, in realtime, without breaking its fluidity. It's a different method.

With chops, it's about cutting up a performance, and rearranging it, tweaking each chunk of sound.

With legato, you start with the performance already in time with your sequence, and you don't have to do any programming work, you just play it, with keyboard or pads.

Chops is for rearranging chunks of a performance, legato is for leaving the performance order alone and changing how it's expressed.

Legato is like surfing a wave, shifting it as you go. You don't change the wave, you just ride it and shape its expression.

So if your orchestra is playing in time with your sequence already, you leave the timing along, to preserve its original continuity. To get a stab effect for example, you don't chop it and trigger a section when you want it, you let it play, and decide when it's heard or not. Then if it is, you can modify its tune with the pads in semitone steps, and its filter with the Q-links.

You can't easily do that with chops and the like. It's possible to program it manually to do what you want, but it's a lot of work, and it's not playable in the same way, where you can experiment with playing it as an instrument.

This is not about multisampled instruments. It's an alternative approach to chopping type stuff, where instead of manually slicing up a sample, and breaking the continuity, you start with something already played in time, then your work is not spent programming, but playing in realtime how that underlying sound is expressed.

You have your underlying sound. It respects the same loop points, so even if you didn't have a long enough sample you could just loop it. Then you merely make a new legato instrument and select it. Now you can instantly shift its pitch in semitones.

There are options for how it handles the time of the underlying sample.

CONTINUE: It can play from where it left off. So if you press the pad for 1 second, then let go, the sound stops, and when you press again it plays from the 1-second mark.

SEQUENCE: It can play with the sequence time, so if your sequence plays for 2 seconds, then you press the pad, it plays the underlying sample from the 2-second mark.

BEAT (size: 1/2, 1/4, 1/8, 1/16; time: continue or random): It can play in beat chunks, so if you set it to play 1/4 chunks, progressively, then you hit the pad and hear it playing the first 1/4 beat of the sample, until you want it to stop by releasing, and the 2nd time you press the pad it plays the 2nd 1/4 chop. The size might be changeable in realtime with the TC or Q-link. If it's random, then each time you press the pad it starts playing from the beginning of whatever beat size you have set, but anywhere in the sample.

Do you see how this uses what's already built in JJOS, so it's not anything fundamentally new, but would provide an option that sometimes would allow you to achieve what you would with chopping and manual programming by doing nothing more than recording a sample with the right time and tempo then creating a new legato instrument?

Imagine if you sampled 2 minutes worth of an acoustic drum beat, then simply created a new legato instrument and set it to play in beats of 1/4, where each kick would be. Then there's no chopping involved, you merely hit record and start playing, but hitting the root note pad when you want a kick. With either continuous or random mode, you're going to get a lot more variation with a lot less work than you ever could with chopping or multisampled instruments.

Yes, I know that in that specific case you can achieve the same result with other methods. But a legato instrument is versatile, in expanding realtime playable possibilities, while decreasing the amount of work you'd have to do for a lot of different uses.

I know you can non-destructive chop the same sample, setting each pad to play chop 1 with chromatic tuning, then use the Q-link to progress through the chops each time you play, or move it randomly. Then you can move to a chop with the slider, and hit a different pad to get it with a different timing.

It's nothing new. It's just a way to combine things that are already there in a way that can be useful in a lot of situations, while unlocking new possibilities that otherwise take way too much work to setup, and can't be played in realtime.

Why would you chop if you could achieve the same thing by simply creating a legato instrument instead?
By Jamon Fri Aug 24, 2012 8:25 pm
Thanks I will. I've watched videos before, but haven't taken the time to understand exactly what it can do. I'll read the manual to see.

Have you tried one? It seems to be able to divide a sample quickly and let you manipulate it, even play it chromatically, but can it do what's described where you can play it in time AND chromatically? Or does it just let you play single segments chromatically?

That's the tricky bit. It's one thing to play a single repetitive chop across notes, and it's another to be able to expand that to playing notes AND letting it move through time too. It's that 2nd dimension that opens things up for a different kind of sound.
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By Coz Fri Aug 24, 2012 8:59 pm
I've not tried it myself... It just seems way too quirky to get to grips with. I'm sure it will do what you're asking though.
By Jamon Fri Aug 24, 2012 9:09 pm
Maybe... I'm reading the manual to find out. Here's a sentence from the part about chromatic mode:

Octatrack manual wrote:[FUNCTION]
+ [TRIG] will manually trig trigless trigs instead of sample trigs.


It's going to take me a minute to figure out what a trigging trigless trig is.