Kurzweil PC3X- How can I Control Leslie with Aftertouch

Discussion in 'Kurzweil Keyboards' started by daveedsf, Mar 8, 2009.

  1. daveedsf New Member

    Member Since:
    Mar 8, 2009
    Message Count:
    1
    I see that Aftertouch is assignable, but leslie is not in the on-board drop down. Has anyone figured out how to use aftertouch to control leslie on this board. Even if you know how on an earlier Kurzweil, please let me know as it might be the same hard-to-find mechanism.

    Thank you,

    David
      • Advertising
  2. kanthos New Member

    Member Since:
    Nov 5, 2008
    Message Count:
    433
    Location:
    Newmarket, Ontario, Canada
    May I ask why you'd want to use aftertouch to control leslie (I'm guessing you mean rotor speed fast/slow or leslie on/off)? This kind of thing is much better suited for a foot pedal that sends an on/off message instead of aftertouch which can send a range of values. You'd have to jump through some serious hoops in order to use aftertouch to control the leslie like a real leslie, including dealing with what happens when you take your fingers off the keys. Aftertouch is best used for subtle variations in something that's already playing as opposed to switching things on and off.
  3. jpscoey New Member

    Member Since:
    Dec 27, 2008
    Message Count:
    231
    Location:
    Manchester, England.
    '

    You don't explain what your knowledge / experience of keyboards is, but I agree that a degree in 'gobbledygook'
    is advantageous when it comes to working out Kurzweil manuals!

    Kanthos is absolutely correct - aftertouch is no use whatsoever for this application.

    Aftertouch is a momentary 'shift' in the sound of the note you are playing & only applicable
    for the length of time you apply that extra pressure on the key. -

    Ideal for such things as (my favourite example) the 'rasping' sound of an 'overblown' saxophone note.

    This will, of course, only apply to the particular note you are pressing down
    (ie: if you are holding down a chord of, say, 3 notes & you press firmer on one of those notes, the effect will only be applied to that note).

    The effect you seem to be seeking is a 'global', or 'overall', effect so forget aftertouch for this purpose!


    .
  4. kanthos New Member

    Member Since:
    Nov 5, 2008
    Message Count:
    433
    Location:
    Newmarket, Ontario, Canada
    Not entirely true. There are two kinds of aftertouch. Polyphonic aftertouch is exactly what jpscoey describes: each note can have its own amount of aftertouch (so I could play a triad and put a lot more pressure with my middle finger, and only that note would be affected).

    The other kind is channel aftertouch, where the aftertouch from *one key* affects all of them. The amount of aftertouch used is usually taken from either the lowest key being played or the key with the most pressure (of all keys, which has the highest value? Use that value).

    Channel aftertouch is much easier for keyboard manufacturers to work with, and it's much more common.
      • Advertising

Share This Page