D501 VCF Demo (no talking)

DoveAudio

"A quick play around with some of the features of the Dove Audio D501 VCF which is based on the NJM2069 VCF/VCA chip.
Here the Q911 drives a moon modular quantizer into two WTFs set to sawtooths for the oscillators, fed into a mixer and into the D501.
The Q119 also clocks a quad AD/AR module (schematics in my blog) and the output of the D501 goes into the corsynth QuadVCA where a little is set to the FX capacitor with a delay before going into my desk.
No EQ and recorded straight into my ID14 and my PC.

Sorry for the blurry picture, I forgot to clean my camera lens"

Snuggles studio tour

studio snippets

leaving - a melancholic auto soundtrack for eurorack synthesizer

Luke Killen

"Today's patch is a sound track to walking away."

Patch of the Week 71: volca bass Modular-Style Polyrhythms

Korg

"7/16 time? Sure, why not. volca bass can do up to three time signatures to create polyrhythms that expand beyond the 16 steps."

Korg Patch of the Week posts

WaveStorm - Wavetable Synthesizer - Let’s Explore - Demo for iOS - Live

The Sound Test Room

"WaveStorm is a powerful wavetable synth with a wavetable creator and editor add-on, like no other, that has endless possibilities for sound design. Submerge into the depths of sound and discover what's possible with this synth.

You can get WaveStorem here at the App Store"

You can find a Wavetable Creator Deep Dive here.

"The new wavetable creator includes massive upgrades.

The features we will be covering in this post are the following.

The control bar
Oscillator overrides
Wavetable merging
Waveform grid selection view
Wave replacing and merging
Wave drawing
Sample level editing
Wavetable sorting
Saving waveforms to your collection
Randomising using waveforms from the collection
Undo fallback
Waveform transition smoothing"

CLICK FOR MORE »

Eurorack Compilation #4 | Bastl | Moffenzeef | Befaco | Noise Engineering | X1L3 Shard | Elektron

Nostalgic Ruckus

Techno. Cake.

Return Of The Gargantuas (Ifukube Tribute) by Everett Dudgeon (Prophet X)

EverettDudgeon138

"Continuing on with my experiments in using the Sequential Prophet X in more 'traditional' scores I did a rough cover of Akira Ifukube's opening title theme to my favorite Kaiju film of all time.

It's rough in some areas and it was done completely by ear but I think it didn't turn out too bad. Enjoy!!

℗Everett Dudgeon 2020"

Check out more of EverettDudgeon138's Prophet X videos here.

Moog Phatty 5 Electronic Storm Polyphonic Analog Synthesizer Rik Marston

Rik Marston Official

The Purple Moog Little Phatty now has 4 Slim Phatty friends!
5 Voice Polyphonic Moog Phatty System, it's super sweet!
So cool to play a real polyphonic Moog! Pure HEAVEN!
I am using REVERB & DELAY FX.

DREXCIYA DEVILSHARK TR-808 distortion jam

highsage

"TR-808 into Euterpe Vertice filter bank vintage component distortion instrument. Freestyle jam, kick, toms, into Vertice. Resonant threshold exploration at 6:30. Used for melodic effect near 7:35. Enjoy!"

Behringer's Cool Audio Clones the Roland BA662A

This one is in via Jose of sonicplug.com, spotted on Future Music Spain.

Per Behringer:

"Great news. Our sister company Coolaudio who designs mixed architecture semiconductors has just released the holy grail of synthesizer chips - a clone of the BA662A.

It is the THE chip responsible for the unique sound of so many classic synths.

Not only has Coolaudio cloned the BA662 “A” version, which is the highest specified version, they also managed to greatly improve noise performance and included even two chips in one packaging.

We’re beyond excited:-)"

The BA662 was used in the Juno-6/60/106, JX-3P and TB-303, Jupiter-4, and Jupiter-8.

via AMSynths:

"The BA662 is a custom made DC controlled variable transconductance amplifier (or OTA) that Roland had manufactured by Rohm from the late 1970’s and is now obsolete. There are two types of chip with different suffices; the A version has been selected for lower offset than the B version. They are further classified by gain/gm. The BA662B can only replace another BA662B, whilst an A can be used in either application.

To quote Roland from the 100M Service Manual: 'Color has great importance in circuits of some models'. However there is nothing mystical about the sound of the BA662, it is just a reasonable good OTA chip which is often carefully matched and selected."

Note Open Music Labs made a clone as well (last edited in 2014):

"They just don’t make IC’s like they used to, and is this case, they just don’t make them at all! So, we decided to bring the BA662 back to life, in all it’s Frankenstein glory. This is a direct replica (to the best of our knowledge) of the now obsolete OTA, made from well matched transistor pairs. It can be used as a drop-in replacement for most applications. So if you have an old synth or effects pedal that is no longer synth’ing or effecting, this just might be the cure...

The BA662 clone is a replica of the very rare BA662 OTA which was used by Roland in a number of their synthesizers and effects pedals from the 80's. The internal wiring of the BA662 was reverse engineered from an original part by applying external voltages and currents, and seeing how it responded. For example, you can find out how many transistors are at the top and bottom of the output stage by measuring the saturation voltages. From this it was found that they used Wilson current mirrors. Also, by measuring the current consumption under varying signal levels, the value of the emitter resistor on the buffer stage was found. A fair bit of the anaylsis was based on recollections from seeing a datasheet a long time ago, and the fact that OTA's have very similar topologies."