>Has anyone got any ideas which resolution (ppqn) the Poly Six arpeggiator
trigger in works at ?
It works at one pulse per note, what you need to do is low pass filter a sound
from a drum
machine or other source so it ends up looking like a single pulse, then maybe
feed that into
a scmidt trigger to clean it up a bit and feed that to the arp input.
I built a box to do this sort of thing years ago and it's stil the heart of my
rig.
I'll see if I can dig out the schematics sometime... though it was all a bit
made up as
I went along.
Otherwise just try feeding in a nice clean kick drum sound or simiilar from the
headphone
outputs of the sound card, experiment with the tone controls on the sound card
of you have them
and you may find it triggers OK, expect messy multiple triggers for a while
until you
find the right settings though... also feed the signal through a big ish
capacitor in series to
prevent any DC coupling from blowing up either the soundcard or arp input.
Hmm I feel I aught to put in a big disclaimer here.. I have not tried conencting
a pc
soundcard directly to a polysix! try this at your own risk!
You might want to look at envelope follower schematics for ideas too.. they do
the same sort of thing, i.e. turn notes into pulses.
Cheers,
Robin.
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