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Add Legato / Glide / Portamento to keygroup programs on MPC Live

In keygroups, it would be handy to have an additional mode "Legato" in addition to poly/mono. In Legato mode, the envelope would not re-trigger if notes overlap.

Additionally, it would be handy to have a "Glide" parameter either globally for an entire keygroup, or per-layer, allowing notes to slide when played legato.
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  • Hey natrixgli,

    Thanks for posting!

    I would also (really) like to see this! I will forward this to the Akai team as a feature request for consideration in a future update.

    Thank you for your feedback!
    • No offense Nick but is
      "I will forward this to the Akai team as a feature request for consideration in a future update. "
      already part of your automatic signature? :-D
      Some of the features you passed are absolutely elementary features where some of them were present on the older mpc's but not on the mos recent units...
      Can we get any feedback on which features the engineers will graciously implement (to at least preserve features of older mpc's we are used to) or if they rejected?

      Thanks
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  • 3
    Why is this missing from the sampler? This is basic stuff! Bring the sampler up to spec with your s6000 series. The machines are definitely powerful enough to keep up. Give us more modulation sources too!
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  • I’m amused
    I know a DEV from a modern Tracker Software at NOTAM Norway that is now in beta who implemented this in one hour after requested.... sad.
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  • Hey Luxxor 808,

    did he do this with the mpc 2.0 software?
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  • Nah, with another software. That was just an example of how quick a basic feature like this can be done...
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  • 1
    No, he is a Developer at NOTAM (Norwegian Institute for Technology and Arts)
    who writes his own Tracker DAW.
    So it's his own software (called Radium Music Editor) where he added this.
    It's a Tracker like Buzz or Renoise. More Nerd Stuff actually.

    However, because of him I know how fast something
    can be added to a lean code. (He also added PDC (Plugin Delay Compensation) in a day or two and wrote a whole mixer for the software in a week as well...
    Pretty amazing. And he is only one person.

    That's why I don't get all the missing simple/basic stuff in the MPC Software.
    Strikes me as *very* odd to say the least.... (Or the guys have no idea what is useful to musicians in a sampler at all... Or the code is a f****n' mess...)

    Best,
    tL.
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  • 1
    It might not be that it's easy, but your friend could also be very gifted as well
    please have him contact Akai or Pete Goodlife!!!

    this is someone we need on the team

    MPC 2.0 with bass glide, pdc, side chaining, (VIP Integrated on the touch Screen), and at least eight inserts would be a total knock out
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  • get him to make a no frills vsti and audio unit plug in that is a sampler (that we can drag and drop our 808 kick samples into)

    Add the ability to do a four or eight bar pattern (kind of like an effectrix layout) have it laid out like the piano roll in FL Studio with the bass glide. Have him charge $30 for the plug in and get it up for sale next week.

    People will buy that all day for other daws as well

    PLEASE GET HIM TO DO THIS!!!

    Thanks :)
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  • 2
    Just noticed that this feature is missing and it's pretty absurd to me...
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  • 2
    Is this feature on the way? Seems pretty basic.. :)
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  • 2
    I would say that this is not as simple a request as you are making it appear, primarily because a key group is more complicated than you are giving it credit for. A key group program consists of a set of key groups, mapping to a contiguous block of keys, each containing up to 4 samples chosen by velocity, round robin, or at random. Even in monophonic, each group has its own envelope and LFO.

    Let's consider the case for Legato. In a typical monosynth you have a single envelope config for an entire voice, this means that for legato you simply don't have the envelope retrigger and update the rest of the voice to match the newly pressed note. If your key group program only has one key group spanning the entire keyboard then this is straightforward (just like a typical monosynth). Once you have a second key group the complexity starts. You now have a (potentially) different envelope on the other group so how do you handle the discrepancy? Obviously there are many choices here (which I will not enumerate) but the answer is not clear as is the case for a classic monosynth.

    Now let's consider glide. In a typical monosynth (with VCOs) glide is nothing more than a slew limiter on the CV to the oscillators. A slew limiter limits the rate of change of voltage causing the pitch to slide. Again, when we have a single key group spanning the entire keyboard, with a single sample, this is simple to implement. As soon as we have multiple samples in the keygroup the complexity begins. You are now required to additionally interpolate the sound between the differing samples along with bending the pitch. This is not technically complex but you can hit many problems such as phase cancellation. Now expand this problem to a pair of key groups with differing filters, how are these interpolated? As with the prior case this is non trivial.

    I've not even got into other complications like handling of different LFOs per group or other modulations. What I'm saying here is that, to have this work for any monophonic key group program, is far from trivial (Note that if they did there is no reason they couldn't do polyphonic glide with little additional work). In short, there are definitely easy ways to implement this that only work in specific situations (and would likely confuse users when it didn't work). If you want it to work correctly on any key group program, this is much more work than the "1 hour" being touted in this thread.
    • ..reading what's needed to include a supposed to be basic option for the
      Akai hardware like glide, makes it clear that a lot of cpu power would be
      taken away to include it. So ..portamento might not appear at all for the
      current line of MPC series. Just lately "someone" told me that subtractive
      synthesis would be very much a CPU hog and are therefore not planed
      for the MPCs ..since other developments are planed beforehand. Single
      Cycle Waves can replace oscillators, but glide might just be to much /?.

      Could just someone open 'them boxes' and see what's under the hood?
      We can't quite believe that cpu power is a todays subject for instruments
      anymore, since pocket handhelds are able to run 8 cores (if even weak).

      PSOUND
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  • You're right. It's pobably not trivial...

    But it would be veeeery nice. I think the OP-1 has it as well :)
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  • I’m amused
    2
    NI Maschine has keygroups.... NI Maschine can do Portamento/Glide...
    • ..if we're not wrong, the Maschine hardware isn't fully standalone and need at
      least an Intel Core i5 CPU to run.

      ..from our knowledge keygroups for the Akai MPC are very well supported, if
      that is of importance on this matter (legato).

      ..anyway, jumping back and forth between music products didn't help us much
      in the past. We'll create sound with MPCs and do think the MPC 2.2 update did
      solve quite a lot midi-vise. Since this highly demanded subject (Midi) is sorted
      out, devs can/will focus on other stuff. We'd love more focus on internal effects,
      that'd be a big changer for the overall Akai MPC sound. (hard- and software).

      PSOUND
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  • My observations were not implying that it couldn't be done, simply that it is not as trivial as some people would have you believe. Depending on the architecture things like this vary from simple to "too much work". On a device where the main computation is on a computer (e.g. the NI Maschine) you have a lot more compute to spare, meaning suboptimal (hacked together) implementations of features like this remain acceptable (Note: I'm not implying anything about the Maschine; I have no idea how it's implemented).

    On a standalone device such an implementation (i.e a bad one) may have a large resource requirement and increased usage per note decreases effective polyphony. This means that a clean and efficient implementation is required to avoid the feature coming with an unnecessarily high cost. In any case, I believe it to be possible and practical given the apparent performance of the hardware. It's just a matter of when it gets done and by whom.

    I have no insight into Akai's development process, but it's likely not just a matter of them deciding to do this. Features and fixes are prioritized based on cost vs benefit. Most likely some of the features they added that you don't care about were "low cost, low benefit". There is probably a lot of contention around (human) resources for "high cost, high benefit" changes of which this is one. Let's just hope it finds its way to the top of the pile soon, though multi-timbrality is definitely higher on my list.
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  • 1
    ..."though multi-timbrality is definitely higher on my list." (instante-smile-creator) True!
    We'd like to see an update on the internal effects (at least changeable user presets).
    At present the only way to re-use effect settings ..is by watching screenshot images
    or comparing effect windows next to each other. Actually it has a good learning effect
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  • 1
    Easy ot not easy to implement, it's a basic and necessary feature. How can we have an hardware like that without portamento in 2018?
    Ok, its not a synth but a sampler. Right. But come on.
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  • When I purchased my LIVE I just assumed in 2018 it would portamento/glide. Should have done my research first.
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