MATRIXSYNTH: organfairy


Showing posts with label organfairy. Show all posts
Showing posts with label organfairy. Show all posts

Monday, March 05, 2018

Wave folder


Published on Mar 5, 2018 organfairy

"Jump to 4:34 to avoid the annoying artificial saxophones.

Lately I have been trying to make things I haven't made before - something else than sequencers, VCOs, VCFs, VCAs, etc.
I have never tried making a wave folder before. As a matter of fact until recently I didn't know what a wave folder is. But I found a good explanation somewhere - the one with the folded paper - and decided that this could be interesting.

The music is something I made on Technics SX-C600 and Yamaha HE-8 organs, and the Roland CR-68 drum machine made the rhythm."

Tuesday, December 27, 2016

Synth song #11


Published on Dec 27, 2016 organfairy

"Again, this is more a demonstration than an actual 'song' and it isn't actually nice in any sonic way.

But

I have made several frequency dividers over the years. Most of them are based on the 4017 or 4024 integrated dividers. But this time I wanted to make a frequency multiplier. The way I have done it is to use a 4046 phase locked loop with a 4017 decade counter in the feedback loop. I made three of those and build them into the same box.

The other sounds are a made with my drum synthesizer through a spring reverb and one of my synthesizers with the filter controlled by a random generator."

Monday, November 21, 2016

Synth song #9


Published on Nov 21, 2016 organfairy

"The rhythm of this melody is a little unusual: It is made by running a simple low frequency square wave through a homemade spring reverb. I have never tried that before.

Another first for me is to connect an envelope generator to the pitch control so that each notes starts by the tone generator ramping up the frequency from zero and ramping down again when the note is released.

Finally I am using the little "cigar box synth" for the solo in the middle."

Monday, November 14, 2016

Homemade synthesizer song #8


Published on Nov 14, 2016 organfairy

"This is not so much of a song. It's more a demo showing what will happen if a simple 16 step sequence of notes are ring modulated with a sweep up and down of a square wave.
But to make it sound more like an arrangement I have added some bass notes and some bursts of modulated noise."

See the organfairy label at the bottom of this post for more.

Monday, November 07, 2016

Homemade synthesizer song #7


Published on Nov 7, 2016 organfairy

"In this video the sequencer plays a vamp with the 16 notes that it can store and I play a simple melody using the 'fairysynth' that I made some years ago."

Monday, April 18, 2016

Homemade Synthesizer song #4


Published on Apr 18, 2016 organfairy

"This time I use the tuning fork controlled synthesizer to make a sort of arpeggio. Another thing to notice is the keyboard with aftertouch. It is actually made really simple: The entire keyframe is on hinges and held up with two springs so that it can be pressed downwards a couple of millimeters. The edge of the frame then dips into an optocoupler fork and thereby generates a variable voltage that can control other modules."

Monday, April 11, 2016

Homemade synthesizer song #3


Published on Apr 11, 2016 organfairy

"Again I am using my telephone exchange step sequencer to control my XOR based drum synthesizer. But this time the bass is made a little different: Instead of just running forwards in the bass line, the analog sequencer goes forwards and backwards. In other words instead of 1234567812345678 it goes 1234567887654321.
The melody and the solo is played on the analogue system with the switched capacitor filter as VCF. I use the same envelope, cut-off, and resonance settings for the melody and the solo but switches between high-pass and low-pass."

Monday, April 04, 2016

Synthesizer song #2


Published on Apr 4, 2016 organfairy

"It's not very often you hear a waltz performed on a homemade synthesizer. So I thought it was about time somebody did it.

In the beginning it sounded a tad ordinary or one might even say boring. But then I added the 'duck arpeggio' and then it sounded sufficiently wacky.

Again I use the step sequencer for controlling the drum synthesizer and analog sequencer. But this time I play the bass manually because I use the sequencer to make the non-quacking arpeggios."

Monday, March 28, 2016

Homemade synthesizer song #1


Published on Mar 28, 2016 organfairy

"I have had a number of requests to do actual music on my homemade synthesizers and sound gadgets instead of just an assembly video and a quick demo.

So, Gentlemen and the occational Lady, now I have done it!

I wrote the music AND build the instruments. If it should be more homemade I should have carved the keys out of wood myself or cast them in plastic (we have a 3D printer where I work so it could be done - but I have used keys from scrapped organs instead).

The rhythm comes from my XOR based drum synthesizer, the bass from the little polyphonic system with sequencer. Both are controlled by the telephone exchange step sequencer. The melody is played on a modular system with a waveshaper I made in 1995, The envelope generator was made in 1996 but has been modified a couple of times since (the first version was not very good because I didn't know much about synthesizers when I made it). The filter was made somewhere in the early 2000s and is light controlled by LEDs and LDRs. The keyboard is only a couple of years old. The solo is played on a simple synthesizer I made out of leftover parts in 1999. It is not completely in tune but that is one thing that has improved over the years: My newest instruments are more precise in tuning. The chords are from a little Oz-inspired mini organ that runs through a stereo phaser. Both are made in the early 2000s.

I hope you don't dislike it too much :-)"

Monday, February 15, 2016

Tuning fork controlled synthesizer


Published on Feb 15, 2016 organfairy

"Some years ago I made a tuning fork oscillator. [see this post]

I have now created a chromatic system where I first multiply the tuning fork frequency by 128 and then use divide down technology to make the individual notes.

The music is something I put together using Elka X-30 organ and Roland JV-35 synthesizer."

Monday, November 30, 2015

Polyphonic system Sequencer


Published on Nov 30, 2015 organfairy

"The demo is at 4:30

I still have one box left. So I decided to build a sequencer for the polyphonic instrument. I have build sequencers before so this time I wanted it to be a little different. I have for a long time wanted to experiment with random notes so I gave the sequencer a random mode. I also made it possible to go back and forth in the sequence instead of just forward. So this is actually the most advanced sequencer I have ever build.

The music is something I made using my Wersi Prisma DX-5 organ and Korg Poly 800 synthesizer."

Monday, November 16, 2015

Polyphonic instrument revisit


Published on Nov 16, 2015 organfairy

"Some years ago I made this polyphonic one octave instrument. However, it annoyed me slightly that it was a sort of stand-alone unit instead of being a system.

But last summer I found some plastic cases the same size and design as the polyphonic instrument. So now I will make a system centered around the existing instrument.

First I will build a dedicated power supply and amplifier. I will also have to make a little change to the instrument itself in order to have it controlling the EG and VCF that I will build later - actually I have build it, I just need to put the video together.

The music is something I made on the Technics SX-C600 organ."

Monday, June 01, 2015

Voltage Controlled Oscillator Controlled Switched Capacitor Filter


Published on Jun 1, 2015 organfairy

"When I was drinking from the fountain of knowledge at Herning Institute of Business and Technology I was introduced to the concept of switched capacitor filters. I don't know why it took me 18 years before I made something synthesizer oriented based on that idea. But now I have done so.

The idea is to replace the lag of a resistor and capacitor with a charge moving operation between two capacitors. And it is all controlled by a fast running voltage controlled oscillator. So you could call it a Voltage Controlled Oscillator Controlled Switched Capacitor Filter - VCOCSCF!

The music in this video is played on Elka X-30 and EP-8 organs, Kawai FS-620 keyboard, and Zoom 505 multi effects pedal."
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