Archive of the former Yahoo!Groups mailing list: Discussion about the Korg PolySix synthesizer

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Subject: Re: [PolySix] Adding a Sustain Pedal

From: Johannes Hausensteiner <johau@gmx.net>
Date: 2013-07-10

Adding a sustain footswitch was the first mod I did when I got my
Polysix (after a few weeks I owned it ...). It simulates key presses
on the "HOLD" button. As a footswitch jack I used the CHORD MEMORY
Footswitch Input jack.
Technically it works very well and is no big intrusion to the Polysix.
The downside is that the HOLD button is implemented like that all notes
are switched off when HOLD mode is left. You need some practice to
accomodate your playing to this.

The details of the sustain footswitch (and other modifications) are
here:
http://launch.groups.yahoo.com/group/PolySix/files/Mods/P6_MODS.ZIP

There is a 2nd possibility to add sustain functionality in the Polsyix:
On KLM-366 there is a not mounted connector (CN-19), which is called
"Release Switch". There is a wire bridge fitted permanently enabling
the EG Release function. You could connect a footswitch there and
disable the EG Release time. I never tried this actually playing the
instrument, but technically it is there. It is not connected to an
external jack though. Probably they realised that it was not a real good
implementation of this functionality.

The best way to do it is like Chip did: in the firmware of the key
assigner. I can tell you that the key assigner CPU program space is
used up to the last byte. So probably they had to skip some
functionality ...

Johannes


On 2013-07-10 04:26, chipaudette wrote:
> I've always thought that the Polysix would benefit from a sustain pedal.
> I've noticed that many (all?) of the MIDI retrofit kits offer a sustain
> pedal as one of the enhanced functions that the kit brings to the Polysix.
> It's a great idea.
>
> Given that I've been hacking my Polysix, I finally added the sustain pedal
> functionality to my own Polysix. I sure do like it. If you're interested,
> you can check out a demo and the "how to" at:
>
> http://synthhacker.blogspot.com/2013/07/polysix-adding-sustain-pedal.html
>
> In an old thread on this topic, I saw that Johannes added a sustain pedal
> to a Polysix without having to implement a full MIDI upgrade.
> Unfortunately, in that thread, the documentation for his mod was a dead
> link. While the text was a decent description, I'd love to see a little
> more detail. Does that documentation exist anymore?
>
> Has anyone else hacked a sustain pedal into their Polysix?
>
> Chip
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>