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volume pedal

Discussion in 'Tech Talk - Electronic Repair Modifications DIY' started by billblues, May 19, 2010.

  1. billblues

    billblues Active Member

    Apr 16, 2005
    I am looking at a midi device that will take controller msgs from my pedal board expression pedals and convert them to resistance outputs in the fashion of a potentiometer. I want to use that resistance as a volume controller between my keyboard and amp.

    I am concerned that the potentiometer will be, by design, linearly scaled, and not as db audio taper.

    I wonder how this will affect its use.

    Do normal volume pedals use linear or audio taper pots?
  2. Link555

    Link555 Well-Known Member

    Mar 31, 2007
    North Vancouver
    I have only seen a few volume pedals, all had log pots inside.
  3. Boswell

    Boswell Moderator Well-Known Member

    Apr 19, 2006
    Home Page:
    Not having been able to find a few years ago a commercially-available MIDI-controlled log volume control, I built one. I don't have the details to hand, but my memory is that it was a simple PIC-based interface using the Intersil X9C303 as the volume control chip. Someone must have found it useful, as it disappeared from my studio after a particularly intense session.
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