Synthaquarium Homemade Synthesizer

Home-made Synthesizer played by Step-Sequencer

YouTube via KrassesZeug | September 02, 2010

"https://sites.google.com/site/synthaq...

My home-made Synthesizer is played by a 16 step sequencer. Meanwile different modulations are done to alter the sound of the synth."

Home-made Synth LFO

KrassesZeug | September 02, 2010
"My home-made Synthesizer is played by a step sequencer. Modulations are done manly by a low frequency oscillator (LFO), that influences only the cut-off frequency of the voltage controlled filter (VCF). The frequency of the LFO ranges from ~1 Hz into the audio frequency range."

Home-made Synthesizer Envelope

KrassesZeug | September 02, 2010

"The envelope (ADSR-type) of my home-made synthesizer is shown in this video. The melody is triggered by a 16 step sequencer. The envelope controlls both, the voltage controlled filter (VCF) and the voltage controlled amplifier (VCA)."

KrassesZeug - Tweaking the knobs of my DIY Synthesizer

Published on Dec 13, 2012 by KrassesZeug

"The knobs of a home-made synth are tweaked while it plays a sequence of notes (Syncuino DIY 16-step sequencer, see link below)."

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https://sites.google.com/site/synthaquarium/
http://chemiker1981.blogspot.de/

KrassesZeug 1st Jam with DIY Synthesizer

1st Techno jam session with my finished Home-made Synth

Published on Feb 16, 2013 KrassesZeug·47 videos

"1st jam with my finished DIY synthesizer.
The sequence and additional sounds are generated by another device.
See my other videos for earlier versions of this synth.

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https://sites.google.com/site/synthaquarium/"

Update: video Re-Published on Feb 17, 2013
"This is one of the first techno jam sessions with my finished home-made monophonic synthesizer (see my other videos for older versions of this synth). The home-made synth has three oscillators and a noise generatur, which are routed into a low-pass filter with resonance. The envelope is optimized to make percussive sounds, as the ones you can hear in this video.

In this video the DIY synth plays the main melody (sequence is generated by an external sequencer). The additional sounds played by other devices are TR-909 drums and a polyphonic synth pad."

Minimalistic 8-bit techno with Nanoloop & Echo

YouTube Published on Aug 24, 2012 by KrassesZeug

"Minimalistic 8-bit techno with Nanoloop & Line6 EchoPark."

Nanoloop on eBay

Note Nanoloop is also available for iOS:
Oliver Wittchow
iPads on eBay
iPod Touch on eBay

Home-made Synth Compilation

YouTube Published on Jul 30, 2012 by KrassesZeug

"Three of videos showing my home-made synth
1) playing the keyboard by hand
2) an Arduino-based MIDI 16-step-sequencer plays the notes
3) transpose the notes played by a step-sequencer by a ps/2-keyboard"

Change Player Size Watch this video in a new window Oscilloscope - Pulse-width modulation of my home-made Synthesizer

YouTube via KrassesZeug
"The pulse-width modulation (modulated by hand) of one pulse oscillator of my home-made Synthesizer is shown on an oscilloscope."

Oscilloscope - Sawtooth, Triangle & Pulse of my home-made Synthesizer

"The raw waveforms of my home-made Synthesizer (Sawtooth, Triangle & Pulsewave) are shown of an oscilloscope. By switching the octave on can see the higher frequencies in the oscilloscope."

Oscilloscope - Mixing Oscillators of my home-made Synthesizer

"The mix of several oscillators of my diy synth are shown on an oscilloscope."

DIY synthesizer and 12V tube-amp demo

YouTube via KrassesZeug — June 03, 2010 — 'Playing home-made synthesizer through DIY 12 V tube amp."

Techno with Nanoloop + synchronized Monotron analog filter

Published on Nov 1, 2012 by KrassesZeug

"Both, a cuicuit-bent Korg Monotron and a Nanoloop (Synthesizer and Sequencer on Nintendo Gameboy) are synced by the trigger impulses sent by a Roland TR-626 drum computer.

This allows to filter the raw chiptune sound of Nanoloop by the analog filter of the Monotron. The retrigger of the Monotron LFO is the red wire. The sync mod is done like shown here: http://stevewoodward.posterous.com/lfo-reset-point-on-korg-monotron"

monotrons on eBay

DIY Arduino step sequencer in action

YouTube via KrassesZeug | November 27, 2010 | 0 likes, 0 dislikes

"Build your own: http://chemiker1981.blogspot.com/

Arduino Mega based home-made MIDI step sequencer playes a synthesizer (also DIY). MIDI master is a Roland TR-505."

8bit House with Nanoloop + circuit-bent Monotron

Published on Oct 24, 2012 by KrassesZeug

"Both, a circuit-bent Korg Monotron and a Nanoloop (Synthesizer and Sequencer on Nintendo Gameboy) are synced by the trigger impulses sent by a Roland TR-626 drum computer.
This allows to filter the raw chiptune sound of Nanoloop by the analog filter of the Monotron. The retrigger of the Monotron LFO is the red wire. The sync mod (circuit-bending) is done like shown here: http://stevewoodward.posterous.com/lfo-reset-point-on-korg-monotron

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https://sites.google.com/site/synthaquarium/"

monotrons on eBay

Korg Monotron - LFO Sync Mod Compilation

Published on Jan 18, 2013 KrassesZeug·46 videos

"This is a compilation of the possibilities of a LFO-sync modded Korg Monotron analog synthesizer.
In this mod (see also http://stevewoodward.posterous.com/lfo-reset-point-on-korg-monotron), the low-frequency oscillator (LFO) of the Monotron (sync slave) can be retriggered by pulse signals in this case from a Roland TR-626 rhyrtm computer (sync master). The trigger signals sent by the TR-626 can be programmed by its rimshot pattern. Shuffled notes of the sync master are directly introduced into the Monotron LFO, to give also a shuffle effect.

Advantages of this mod is the low-budget (~2$, only a few cables and a 3.5 mm plug are needed) and the possibility to sync other music devices to the TR-626 via MIDI at the same time. Like shown here a Nanoloop (http://www.nanoloop.de/gameboy) cadtridge for Gameboy Classic, can also be synced with the same pulses.

This LFO-sync Mod enhances the possibilities of the Korg Monotron significantly.
It allows to use the synchronized Monotron analog filter LFO for external audio, as well as for the internal voltage controlled oscillator (VCO).

If the Monotron LFO frequency is tuned higher the retrigger frequency of the sync master, there is also the possiblilty of cross-modulation effects, like for the unsynced version.

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https://sites.google.com/site/synthaquarium/"

Guitar-like transposing of a DIY sequencer with a PS/2 keyboard

YouTube Uploaded by KrassesZeug on Sep 17, 2011

"http://chemiker1981.blogspot.com/
A sequence played by my DIY sequencer/synth is transposed by a standard PS/2 keyboard. This realized by a change in the software of the arduino µ-Controller based sequencer Syncuino. MIDI master is a Roland TR-505 drum computer, MIDI slave is the Syncuino.
The Syncuino project is described here:
http://chemiker1981.blogspot.com/2011/08/8-transposing-notes-with-ps2-keyboar..."

Circuit-bending: Roland TR-505 mute single drums

YouTube via KrassesZeug
"Single drums of a Roland TR-505 drum machine are muted by ground connections"

Home-made virtual-analog Synthesizer played by Step-Sequencer2

YouTube Uploaded by KrassesZeug on Mar 18, 2012

"https://sites.google.com/site/synthaquarium/

My home-made Synthesizer is played by a 16 step sequencer. Meanwile different modulations are done to alter the sound of the synth."

Syncuino - Stability at different MIDI clock speeds

YouTube via KrassesZeug | December 01, 2010 | 0 likes, 0 dislikes

"Build your own Syncuino: http://chemiker1981.blogspot.com/

Syncuino is an Arduino Mega based home-made MIDI step sequencer playes a synthesizer (also DIY). In this video the clock speed of the MIDI master (Roland TR-505) is changed. The Syncuino stayes synchronous."

Oscilloscope: Filtering Sawtooth, Triangle & Pulse waves of my home-made Synthesizer

YouTube via KrassesZeug
"The waveforms of my home-made Synthesizer (Sawtooth, Triangle & Pulsewave) are filtered by a low-pass filter (first without, than with resonance) and shown on an oscilloscope."

Techno live set with Nanoloop, Monotron & Electribe

YouTube Published on Sep 9, 2012 by KrassesZeug

"Techno live set utilizing
-Korg Electribe
-Korg Monotron
-Nanoloop
-Echopark
-TR-626 (MIDI and sync-trigger master)

Gameboy and Electribe (not the Monotron filter LFO) are synchronized via MIDI or trigger pulses from the TR-626 sync master. The Delay is synced manually by tapping.

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https://sites.google.com/site/synthaquarium/"

Monotron Filter controlled by Arduino

Published on Dec 6, 2012 by KrassesZeug
"The cut-off frequency of the Korg Monotron analog low-pass filter is controlled by an Arduino micro controller and a DAC chip.

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https://sites.google.com/site/synthaquarium/"

Korg Monotron LFO synchronized to Roland TR-626

YouTube Published on Sep 19, 2012 by KrassesZeug

"The LFO of a Korg Monotron is synchronized to the trigger output of a Roland TR-626 drum machine. The retrigger of the Monotron LFO is the red wire. The sync mod is done like shown here: http://stevewoodward.posterous.com/lfo-reset-point-on-korg-monotron

In this video the TR-626 is started and stopped. The rhythm rate is also varied.

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https://sites.google.com/site/synthaquarium/"

Syncing a LED to MIDI-Clock via Arduino

YouTube via KrassesZeug | November 01, 2010

"http://chemiker1981.blogspot.com/
A LED is synced to MIDI-clock via an arduino. Sync-Master is a Roland TR-505, while the Arduino is the MIDI-Slave. This is a first step in the development of a DIY Arduino Mega based 16-step sequencer. Software can be found in the link above."