Check out the Polysex page for more information.
We will post a video describing the installation procedure step by step soon. There will also be workshops in Berlin. If interested contact us.
Information about the Polysex mod is now online!
Launches 24.8.2013. There will be a presentation and workshops in the next couple of weeks, dates will be announced here.
I thought I let you know what I’ve been doing since the last update. I worked a lot on my Polysix mod and will finally be able to sell it as a kit soon.
There are some sound demos at the end of this article which should give you an impression, of some (but definitely not all) the new sounds which are achievable with this mod.
There are two different mods which can both be used at the same time:
The kit will include a PCB, all necessary parts and a front panel which you can use to mount the controls onto your Polysix. The front panel is made of fully anodized and printed aluminum and done in Polysix style (see images above and below). Instead of original Polysix knobs the kit will only contain similar ones, but it is possible to use Polysix knobs (one can find used ones). There will be a version with the PCB fully assembled and tested,too.
No! The Polysex mod was designed as a kit, which means I tried to make it as easy as possible to assemble and install it. You will need basic soldering and metal work skills, but nothing you can’t learn by watching half an hour of a soldering tutorial on youtube. You will have to drill some holes into the metal casing of the Polysix, but precision is not needed because everything is covered by the front panel and will look very nice.
At the moment I am working on collecting all the parts in larger quantities, getting the front panel and the PCBs produced, writing a manual and setting everything up nicely so you will get a good product and have a fun time 🙂
Please don’t hesitate to ask them, I will answer and update this little FAQ.
None of the sound examples make use of the effect section of the Polysix (or any external effects)
The prototype boards for the Polysix mod finally arrived from the manufacturer after four long weeks of waiting. I will run some tests, see if everything works as it should and then go into production.
So you’ll be able to get the kit soon 🙂
I am currently working on a PCB / kit for my Korg Polysix mod. It will be available soon and feature both mods: portamento and spread detune.
This is a design for a front panel – Polysix style:
It could look like this:
And here is a rendering of the PCB:
Currently a prototype board is being produced, for some last checks before a larger order of boards.
If you are interested, have any suggestions or questions, let me know in the comments 🙂
Unfortunately the hardware only supports digital input but not digital output even though the software does. But as it turns out you can add output capability with a nice small hack. This way you get a logic analyzer, a frequency generator, frequency counter, PWM generator, arbitrary digital signal generator,….! All in one.
The hardware of the LA basically consists of a CY7C6813A which handles the USB communication and a HC245 bidirectional bus driver. Yes bidirectional! A little debugging showed that the CY7C6813A as a matter of fact does output digital signals, when requested by software.
The only problem is, that the direction pin of the HC245 is hardwired to input mode.
Take a knife or a scalpel and cut the trace marked in red. Solder the resistor to the contact marked as GND and use the enamelled copper wire to connect it to the pin which was connected to the trace you cut.
Take a small switch – I just took what I had lying around – and connect it to VCC and to the direction pin.
You can use the knive to cut an opening for the switch into the case and then use the super glue to glue it in. Done…
So now you can switch between input and output mode. Just be careful not to leave any outputs connected to the device when putting it into output mode.
(I used hot glue instead of super glue so it looks kind of ugly, but I don’t care 😉
There is a nice writeup about which software you can use on the ePanorama Blog
update: A lot of people (including myself) had problems with the USB cable that came with the LA. I couldn’t even charge my phone properly with it. So if you ever experience problems with high sample rates, glitches, etc, replace it.
This is me playing around with midi Elektor formant midi interface. It is still in developement, but it already sounds quite nice…..