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Showing posts sorted by date for query R.O.T. Studios. Sort by relevance Show all posts

Thursday, November 16, 2023

Both Sides of the Knife - Elka Concorde 802 song


video upload by R.O.T. Studios

"Since it's working again, I of course had to make a song with it :)
Love my Elka~"

This is the first Elka Concorde 802 to be featured on the site. You can find other models in previous posts here.



The following are some pics of an 802 off of Reverb

Saturday, October 07, 2023

The Science Organ part 2 - Adding the Monotrons and Percussion Synths


video upload by R.O.T. Studios

"I add the missing synths and fix a bunch of issues. It's coming along great! next up will be the effects."

Thursday, September 07, 2023

UNLEASH THE FM BEAST - Electone HS Expander #1 #fmsynth #synthesizer #diy


video upload by R.O.T. Studios

"It is time to unleash the full FM synth glory of the Yamaha Electone HS organ, using an Arduino, some electronics and a LOT of research to control the HS organ through MIDI Sysex."

Follow-up to this post.

Monday, September 04, 2023

HS Expander test! Success! #shorts #fmsynth #synthesizer #arduino #programmer


video upload by R.O.T. Studios

"Yay, it's actually working haha Got a few bugs to iron out, but I'm happily surprised it is working this well already. This is the very first test!"

Saturday, October 16, 2021

Yamaha PS-3 - Custom Circuit Bend Synthesizer


video upload by R.O.T. Studios

"Commission for Ian from Japan! Hope you are going to have lots of fun with this, I sure have ;)
Lots of new features such as vibrato, pitch bend, waveshaping and noise, filter controls with ADSR and inverted envelope, VCF and VCA LFOs and percussion decay."

Sunday, February 02, 2020

Fairlight CMI Series I SN A058025

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"This is a very rare, complete Fairlight CMI Series I - serial number 25, built in May 1980.


I bought it in 2015 with the intention of setting it up in my studio and maybe getting the keyboard case refinished at some point. But instead it's been sitting in my workshop and has been rarely used since I bought it.

Very mixed feelings about offering this system for sale because I'd rather keep it, but I know it will only sit longer. I'm sure there are musicians, collectors, studios or museums out there who could make better use of it, or at least give it the care it deserves.

I'm not in a rush to sell it, so I'm putting it out there to see if there's any interest at the price point I'm interested in. I'm basically just trying to break even, and this being a very rare complete Series I, hopefully may have appreciated or at least maintained its value since I bought it.

The synth collector I purchased it from told me it was once Bob Moog's demo system. Some of the disks and paperwork that came with it have "Bob" written on them, but I cannot confirm this. It may even be the system Bob Moog demoed in the Jeff Harris YouTube video clips.

You can see it in action in my YouTube video (search for Fairlight Mars Lasar) or when I exhibited it at VCF East 2015 (search for Scott Joplin Fairlight).

The photos attached here were taken a few weeks ago, so the machine still powers up and boots up fine.

Screen is still crisp with very little screen burn and almost no screen rot. Light pen still works fairly well. Keyboard is typical for a Series I, very light plastic action, but works fine. Both floppy drives work. QWERTY keyboard works fine, and all keys respond with tactile feedback. The entire power supply was replaced in 2015."

Thursday, January 02, 2020

SQK-01 update - Gnarly DIY FM Synth


Published on Jan 2, 2020 R.O.T. Studios

A WIP update of my DIY FM synth: SQK-01.
VST-Plugin version: http://evilturtle.nl/store/plugins/sq...
EMU Xboard hack:

Hacking an EMU Xboard MIDI controller for DIY

Published on Nov 12, 2019 R.O.T. Studios

"The EMU Xboard MIDI controller is GREAT to build DIY synths with, since it uses an Atmega48 as the front panel controller. The pinouts are also easy peasy and offer enough flexibility. On top of that you get a semi-weighted keyboard with velocity and aftertouch! Lotsa bang for your DIY buck :)

Arduino library
My custom front panel code
Front panel and Due pinouts
Front panel and Atmega notes
Scanning a key matrix


via Evil Turtle Productions

"The SKQ-01 is a more extreme take on FM synthesis, offering 9 different waveforms as well as PWM (Pulse-Width-Modulation) and allows you to create anything from trippy FM pads to the most noisy and loud bass lines.

Besides the FM synthesis mode the synth can also be switched to a normal synthesis mode so that the two oscillators can be layered, for a nice full sound which lends itself for things such as massive pads.

There are two oscillators/operators giving 16 note polyphony. Each of these has it's own waveform, detuning and ADSR envelope.
The second oscillator/operator has PWM which can be used both in FM as normal synthesis modes.
The synth also features an analog emulation of a low-pass VCF with plenty of resonance available, which can be controlled with a separate AR envelope as well as an LFO.

For further shaping of the sound there is a distortion, stereo chorus and reverb effect build in. For extra dynamics in your playing Portamento and Pitch Bend can be used.

Patches can be saved and loaded from within the plugin."

Saturday, April 20, 2019

Yamaha PSS 680 - Jam #1


Published on Apr 20, 2019 R.O.T. Studios

"This yamaha PSS-680 is endless hours of fun, I swear.
I think I might do a bunch of these jams. This jam ain't perfect (those pads are worn to hell) but I'm having too much fun haha!"

Sunday, April 07, 2019

Yamaha PS-3 - Sunny Morning Jam


Published on Apr 7, 2019 R.O.T. Studios

"Little impromtu jam on my modded Yamaha PS3 synth. I love this little thing haha. I'm also so glad summer's finally coming. Finally more light and happyness! Yay!"

Thursday, January 17, 2019

Evil Turtle Productions RezzoDrone prototype 2 - Resonant Drone Synth


Published on Jan 17, 2019 R.O.T. Studios

I believe this is the first Evil Turtle post on the site.

"Now with 3 voices. Each voice has an oscillator and LFO which excite and modulate a resonant circuit. Schematic of first prototype is here: http://evilturtle.nl/projects/rezzodr..."
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