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Volca Bass & Keys 2018 - any other mods possible ?

 
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ShoNuff
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Joined: 27 Oct 2014
Posts: 82

PostPosted: Tue Jul 03, 2018 9:34 am    Post subject: Volca Bass & Keys 2018 - any other mods possible ? Reply with quote

any more mod possibilities on Volca Bass ?

we've seen VCA Level (looks tricky), and FilterFM(also).
what about CV inputs straight to pot leg (have control
over cutoff and resonance) or things to do with waveform
outputs?

a switch, to invert VCF EG ? possible?
(same question for Keys)
any way of having square waves for 'poly' mode?
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ShoNuff
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Joined: 27 Oct 2014
Posts: 82

PostPosted: Tue Jul 03, 2018 9:38 am    Post subject: Reply with quote

audio in to filter?
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ShoNuff
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Joined: 27 Oct 2014
Posts: 82

PostPosted: Fri Jul 27, 2018 8:14 am    Post subject: Reply with quote

c'mon! Very Happy

more mods for Volca Bass ! there must be more stuff
we can do to it ...
1/
would really like to have the indiv osc level control. i don't
think the hack points have been shared for that. looks like it's
a bit of hassle.
2/
something that could be simple is VCF envelope invert ?
a little switch, redirect the envelope signal via an inverter?
3/
it receive velocity to amplitude. what if the velocity voltage
could be sent to VCF? another switch.
4/
would really like to figure out oscillator sync. schematic
seems to suggest it might be possible.

anyone into this?
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ShoNuff
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Joined: 27 Oct 2014
Posts: 82

PostPosted: Sat Oct 20, 2018 7:47 am    Post subject: Reply with quote

right here's the latest fantasy idea:

Volca Keys:

how does the send to the delay fx work?
or rather, the return?
what if an insert point was made here, making
'feedback' an 'amount' control? .... that seems
to be what it is, bringing back the delay signal
into the mix path.

'send' is probably a fixed amount. so it's probably
a delay volume control. or both?

maybe not worth thinking about when you can just
send the whole signal to an external processor.
------------------------------------
has anyone done any interesting mods to the Keys that
they can share?
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Spheric El
Platinum Member


Joined: 21 Jul 2014
Posts: 746
Location: Liverpool

PostPosted: Sat Oct 20, 2018 9:20 pm    Post subject: Reply with quote

Nice idea for the delay feedback.
Super monotron delay.
Throw in the envelope invert an osc sync too.
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ShoNuff
Junior Member


Joined: 27 Oct 2014
Posts: 82

PostPosted: Sun Oct 21, 2018 5:57 am    Post subject: Reply with quote

must've been a bit tired, because i missed
the whole point of my post Smile
it was prompted by that noisy delay, and
wondering if some other effect could be
inserted there - say, if it could go out to
an fx box/pedal, and then come back in.
doh but that a bit pointless ...

but something could go there.
although: it's not too clear how that delay
is generated. Time is fully under digital
control, so is feedback. so is it all in a chip?

i have a feeling we should be thinking about
pot pins as points into the circuit. what happens
if you make a jack insert direct into the signal path
there?

yes i'm keen to find out if vcf env invert is possible,
for Keys and Bass.

i'm drilling into the back of both of them today to fit
a few minijacks anyway. take my time nice neat job,
get that out of the way. not sure whether to do MIDI
on mini-TRS. think it's the easiest way. easier to mod
a cable than fit a fragile fullsize DIN in the top.
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