These instructions show how to connect the uniPulse to your Pearl Fightman in order to trigger the instruments via midi.
Instructions are generously provided by Matt Padden. Thank you!
All instruments can be trigggered:
36: Kick
37: Snare
38: Hat
39: Hat Pedal (off: closed; on: open) *
40: High Tom
41: Low Tom
42: Floor Tom
43: Crash
44: Ride
* Note that to achieve an Open Hat, the ‘Hat Pedal’ note must be held down while the ‘Hat’ note is played.
Firmware 1.1 is a major update for our MC-2oh2 mod for Roland MC-202 synthesizers.
In addition to the already rich feature set, the update brings a live recorder with overdub, per-step probability, a swing/shuffle function and various small improvements.
MC-2oh2’s new recording feature can record from the keyboard or the output of the arp. An optional overdub feature allows corrections and ever-evolving patterns. At any time of the recording process, it is possible to switch into the pattern editor and modify the recorded pattern. Afterwards you can continue with the recording without having to stop the sequencer. This is perfect for playing and composing live and a lot of fun!
MC-2oh2 now features probability control of the gate and modifiers (accent, filter accent, portamento and noise) of each note. There are four different levels you can set:
0% (always off)
Low (33% probability by default)
High (66% by default)
100% (always on)
The levels for “low” and “high” can be set globally and even changed via midi CC.
When playing a pattern, the probability will be taken into account: If a note accent has a probability of 33%, every third time this note is played, it will trigger accent.
MC-2oh2 now features a swing / shuffle setting. Swing will delay every 2nd 16th note by an adjustable amount between 0% and 99%. Swing can be applied with any type of clock source: Internal clock, DIN-Sync, Midi Clock and trigger.
Two new shortcuts are implemented to further improve MC-2oh2s live performance capabilities:
Pressing TEMPO now also shows an overlay with the state of each channel (normal, playing, arpeggiator, recording). With the press of a button you can quickly toggle between a started and stopped state for each channel. This allows quick and easy arrangements. Starting will always happen in sync.
Another shortcut helps to quickly change the channel: Press and hold CHAN and use the DOWN, NORM and UP buttons to select channel 1, 2 or the drum channel.
The new screensaver helps preventing burn-in of the OLED display. We recommend to activate it.
There are many more minor improvements and fixes.
Here are some investigations and improvements on the Juno-6 and Juno-60 noise performance. We looked at both, the original CPU as well as our Juno-66 upgrade
Both, the original CPU and Juno-66 create noise on the output. You can hear that by not playing anything on the keyboard, select SAW as input waveform (as this seems to reduce the VCA bleeding) and pull the gain all the way up.
The noise performance can be improved by adding additional filtering to the 5V supply. In case of the SH-101 for example which has a similar problem, an additional 10µF ceramic cap close to the CPU worked very well.
Now, at least in the case of my Juno, the original CPU has actually a much louder noise ( I assume because it draws more current), as compared to Juno-66.
However, the noise is not focused on one frequency, but a broader spectrum. This is due to jitter in the original CPU processing.
Juno-66 on the other hand, produces noise with a dominant frequency content and hence might be more audible – even though actually quieter.
To rectify this, I have created a firmware update that introduces additional jitter to broaden the spectrum a bit. Note, however that a good solution would of course eliminate the noise via supply rail filtering.
Noise of the original CPU, while a key is pressed the frequency is a bit different.
With the same settings: Juno-66 firmware 1.29. I press keys and change the portamento switch. Note, that this is already quieter than the original CPU
Same setting: Juno-66 firmware 1.3 – jitter is introduced
Soldering an additional 10uF capacitor between GND and 5V on the bottom of the board across the CPU supply pins, improved the noise even further.
You can find the 1.30 firmware on the updater site.
The Kawai SX-210 version of OrganDonor offers the following features:
The installation is relatively simple, but does require basic soldering skills. You will need to drill a hole for the midi socket.
Installation instructions can be found in this PDF.
If the optional learn button is installed, it can be used to quickly change the midi receive channel of organDonor.
Connect midi out of a computer or keyboard to midi in of organDonor. Make sure not to send any notes.
Press the learn button and while it is pressed send a midi note on any midi channel. organDonor will set this note as the lowest note of the synthesizer and use its midi channel. These settings are saved.
Send midi notes on the configured midi channel (see above)
Alternatively you may configure a lot of parameters using our organDonor configurator.
We recommend using the Kawai SX-210 config file as starting point
1.) Save the file on your hard drive via right click -> save as
2.) in the configurator press “Load configuration” and select the file
This manual describes how to install our OrganDonor midi interface in Oberheim 4 voice and 8 voice synthesizers.
You can purchase the kit here: Shop: Organ Donor
Picture derivative work:
Robert Brook, CC BY 2.0 <https://creativecommons.org/licenses/by/2.0>, via Wikimedia Commons
The installation guide can be downloaded as PDF here
The config file for OrganDonor is here
This manual shows how to install uniPulse in a Korg Mini Pops 45 and trigger all 10 instruments via Midi.
The installation is fairly simple and only requires soldering a few wires and parts into place, as well as drilling a hole for the midi socket.
Here we see the 10 trigger points for the various instruments. These are trigger outputs P1-P10 from uniPulse directly soldered to the trigger points.
In order to power the uniPulse you just need to solder the brown (V+) and red (GND) wires to the electrolytic capacitor shown in the picture.
Installing the midi socket is simple. A drill guide is included in the kit. Any location is fine, we chose to install the socket next to the audio sockets.
After installing uniPulse, turn on the machine and make sure the LED on the uniPulse is turned on. This means it has power and is running.
Connect midi and use the config tool to upload the following configuration.
Config file (right click, save as)
have fun!
The Opus 3 version of organDonor offers the following features:
The installation is relatively simple, but does require basic soldering skills. You will need to drill a hole for the midi socket.
Installation instructions can be found in this PDF.
If the optional learn button is installed, it can be used to quickly change the midi receive channel of organDonor.
Connect midi out of a computer or keyboard to midi in of organDonor. Make sure not to send any notes.
Press the learn button and while it is pressed send a midi note on any midi channel. organDonor will set this note as the lowest note of the synthesizer and use its midi channel. These settings are saved.
Send midi notes on the configured midi channel (see above)
Alternatively you may configure a lot of parameters using our organDonor configurator.
We recommend using the Moog Opus 3 config file as starting point
1.) Save the file on your hard drive via right click -> save as
2.) in the configurator press “Load configuration” and select the file
When retrofitting midi to old gear using our kits, often holes for the midi sockets need to be drilled. This guide is how we do it and shows a clean, easy way using a hole punch.
Stuff you need:
3. Remove drill aid
4. Drill 2mm pilot holes
5. Use 3.2mm drill
6. Use 4mm drill
7. Use 6mm drill
8. Use 8mm drill
9. Insert screw and skirt of the screw hole-punch
10.Attach the cutting part of the screw hole-punch
11.Use the box wrench, clockwise
12. Result
13. Install MIDI jack
That’s all. Have fun.
The Siel Orchestra version of OrganDonor offers the following features:
The installation is relatively simple, but does require basic soldering skills. You will need to drill a hole for the midi socket.
Installation instructions can be found in this PDF.
If the optional learn button is installed, it can be used to quickly change the midi receive channel of organDonor.
Connect midi out of a computer or keyboard to midi in of organDonor. Make sure not to send any notes.
Press the learn button and while it is pressed send a midi note on any midi channel. organDonor will set this note as the lowest note of the synthesizer and use its midi channel. These settings are saved.
Send midi notes on the configured midi channel (see above)
By default, the channel is midi channel 1
Alternatively you may configure a lot of parameters using our organDonor configurator.
We recommend using the Siel Orchestra config file as starting point
1.) Save the file on your hard drive via right click -> save as
2.) in the configurator press “Load configuration” and select the file
The Korg Delta version of OrganDonor offers the following features:
The installation is relatively simple, but does require basic soldering skills. You will need to drill a hole for the midi socket.
Installation instructions can be found in this PDF.
If the optional learn button is installed, it can be used to quickly change the midi receive channel of organDonor.
Connect midi out of a computer or keyboard to midi in of organDonor. Make sure not to send any notes.
Press the learn button and while it is pressed send a midi note on any midi channel. organDonor will set this note as the lowest note of the synthesizer and use its midi channel. These settings are saved.
Send midi notes on the configured midi channel (see above)
By default, this is midi channel 1.
Alternatively you may configure a lot of parameters using our organDonor configurator.
We recommend using the Korg Delta config file as starting point
1.) Save the file on your hard drive via right click -> save as
2.) in the configurator press “Load configuration” and select the file