KATOD, Adamstan84 & Yugol - Main theme from "Golden Axe" - live @ '80s Synth Invasion vol. 3

adamstan84

Anyone ID the white desktop synth? Update: found it here.

"Kolejna wersja tego kultowego kawałka na moim kanale - chyba już czwarta ;)

Głównodowodzący @KATOD_music (Commodore 64, syntezatory, gitara), na Hammondzie Kamil "Yugol" Groblewicz z Wrocławia, no i ja coś tam dogrywam na swoich syntezatorach. Hammond Kamila wniósł fajny pazur do tego utworu."

Googlish:

"Another version of this cult piece on my channel - probably the fourth one;)

Chieftain @KATOD_music (Commodore 64, synthesizers, guitar), on Hammond Kamil "Yugol" Groblewicz from Wrocław, and I play something on my synthesizers. Kamila's Hammond brought a cool claw to this piece. "

New SYNTHETA 82 Prototype Hardware Desktop Synthesizer From Adamstan

Prototypowe dźwięki - Prototype sounds vol. 4 - SYNTHETA 82

Published on Oct 6, 2017 adamstan84

English below.

"Następca "Skrzyneczki" zaczyna nabierać ostatecznych kształtów. Od strony elektronicznej chyba 99% procent jest zrobione, oprogramowanie ~80%. Nawet Sysexy już częściowo działają, co widać na początku filmu :-) Obudowa pewnie jeszcze ulegnie drobnym poprawkom, ale ogólny styl zapewne zostanie zachowany. Oto "Syntheta 82" - ośmiogłosowy, dwubrzmieniowy syntezator analogowy Made In Poland - w stereo i w kolorze :-)

Krótkie podsumowanie:
- Polifonia 8 głosów
- Bitimbral (Split/Layer)
- W każdym głosie 2xVCO, 3xADSR, 3xLFO, RingMod, FM, VCF 12dB/okt o przełączanej charakterystyce
- wyjście stereo z regulowaną szerokością bazy
- 3 tryby panoramowania: - alt (domyślny) - parzyste głosy na lewo, nieparzyste na prawo - key - pozycja w panoramie określona przez wysokość dźwięku - indywidualny - jedna warstwa jest panoramowana na lewo, a druga na prawo

*Część presetów z tego dema można było usłyszeć w poprzednim filmie, jeszcze bez obudowy.

********************************************************************
My new synth prototype - almost finished. Even Sysex patch dumps work ;-) "Syntheta 82" - 8 voice, bitimbral stereo analog synthesizer.

Each voice has 2xVCO, 3xADSR, 3xLFO, RingMod, FM, multimode 2-pole VCF and stereo output with adjustable widht.
3 panning modes are available:
- alternate (default): odd voices to the one side, even to another
- key: pan is set by note number
- separate: Upper layer to the left, Lower to the right

01:03 - JX Piano (sync, PWM)
01:41 - EPiano (RingMod, PWM)
02:19 - Bells (RingMod, PWM)
02:35 - Self-Osc
02:42 - Brass 1
03:02 - Split 1
03:28 - Split 2
03:46 - Split 3 (Pad/Lead)
04:19 - Organ
04:33 - Brass 2 (Saw + PWM)
04:52 - Strings 1 (Saw + Pulse)
05:10 - Strings 2 (Layer)
05:26 - "Sonar" ;-)
05:31 - Soft Pad
06:04 - JX Brass
06:17 - Resonant Brass
06:32 - HiQ Bass
06:56 - FM 1 (Osc FM, VCF FM, Sync)
07:45 - Vox Humana (RingMod, Layer)
08:14 - FM 2 (VCF FM, Sync, Ring Mod)
08:47 - Single-Osc Brass
09:16 - Drums"

ELEX K4 + Behringer VP1 "Vintage Phaser"

Published on Jul 3, 2017 adamstan84

"Instant JMJ sound :D Bas - Solton Programmer 24, Drums - synth prototype."

Updated Prototype Analog DIY Polysynth by adamstan

Prototypowe Dźwięki | Prototype Sounds vol. 2 - splits & layers

Published on Jun 28, 2017 adamstan84

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

"Next - hopefully final - prototype of my analog polyphonic synthesizer. New features in this version are 8 voices, bitimbrality and stereo output from each voicecard, with independent panning circuits.

2xVCO (with sync and PWM), Ringmod, FM (VCO A/noise to VCF / VCO B), 3xADSR, 3xLFO, multimode VCF 12dB/oct. - LPF/HPF/BPF

Table of contents (numbers in parentheses indicate voice allocation between layers):
00:03 Autotune - takes approx. 15 seconds
00:21 Split: Unison bass + Strings (4+4)
01:02 Organ (8)
01:24 Split: Pad + brass (4+4)
02:05 VCF used as sine oscillator with keyboard tracking (8). Filters don't have temperature compensation so they will drift, however, given some time to warm up they keep pretty well
02:29 Brass (8)
02:50 Layer: Pad + ringmod bells (4+4)
03:21 Split: Bass + comp (1+7)
04:19 Split: Pad + lead (7+1)
05:14 some filter tweaking - playing with resonance, envelope depth and switching between different modes
07:00 Stereo spread adjustment"

DIY B5 Analog Polyphonic Synthesizer Demos

Published on Jun 7, 2016 adamstan84

"Better late, than never :-) I've finally managed to record demo video for my DIY polysynth built in 2008. 5 voices with 2 VCOs, 3 EGs, 3 LFOs, Ring Mod, Noise source and Moog ladder filter."

Marek Biliński - Fontanna radości (cover)

Published on Sep 24, 2009 adamstan84

"Cover nagrany jako utwór demonstracyjny dla zbudowanego przeze mnie w ramach pracy dyplomowej syntezatora analogowego widocznego na filmie. || Recorded as demo track for my DIY analogue polysynth shown on video. Don't know why, but I can't post replies to comments. http://electro-music.com/forum/viewto... - here I've written something more about this synthesizer (there are schematics and source codes). In short - analogue circuits are common designs taken from various sources, digital control circuitry is my design."

"After almost 2 years of work, I've finished my DIY polysynth Very Happy Very Happy It is based on various module designs available on the net.
I consider it to be a "Poor mans Memorymoog" with a little bit of Prophet 5 thrown in Wink. It features:
- 5 voices
- 2xVCO per voice
- 3xEG per voice (hardwired to pitch, cutoff and volume)
- 3xLFO (pitch, cutoff and PWM)
- Moog ladder VCF
- Noise source
- Ring Modulator
- Patch memory (128 user patches)
- MIDI
- Mono mode with selectable note priority (High/Low) and triggering (single/multi) and with portamento
- unison with adjustable detuning
VCO A offers sawtooth, square and triangle. VCO B offers sawtooth and square waves. Having triangle wave available is essential if you want to obtain some nice fm-like sounds from RingMod.

It's built using only standard off-the-shelf components - no CEM or SSM or similar chips inside - only typical opamps, switches, transistors etc.

Case (together with keyboard) was salvaged from some crappy 70's combo organ."

Also see this post.

New DIY Polymoog Project - TOS Polysynth

via adamstan on electro-music.com:

"Hello

I've always wanted to have the Polymoog, however getting one isn't easy - and getting working one is even more difficult , and that beast is HUGE. So I decided to build something similar myself. As with my first synth, this is mix of many designs. Currently I'm designing last boards, and going to order them today or tomorrow morning. They should arrive in two weeks, and then - soldering mayhem But, back to the design itself - what will it be?

- 61 keys
- Master oscillator section based on Polymoog - two VCOs driving two divide-down ranks using PLL
- Dividers built with CMOS counters - 4040 with diodes & 4024 for each note, like in TOG thread by AnalogCustom http://electro-music.com/forum/topic-45583-0.html&postdays=0&postorder=asc&highlight= - this is the biggest board
- Waveshapers based on Polymoog too
- Digital envelopes and LFOs
- there will be 4 LFOs, like in Polymoog - one for each VCO, one for PWM and one for filter
- VCF & VCA from Korg PS-3100. Why? Because it has lowest parts count, that's why
- Polymoog resonators and maybe some 4-pole master VCF at the output.

I will post current schematics when I get back home today. Here is waveshaper simulation done in falstad circuit simulator:" [above]

Capacitors have to be selected for each note to provide consistent saw level & PWM range across entire keyboard.

The VCF/VCA modules will sit on small "articulator" cards, that will plug vertically into 5 motherboards (one for each octave). Each mobo will also have associated waveshaper and envelope card. So it will look like this:

Green bars are the articulators, red one is waveshapers, and blue ADSR.

The nice thing about this design is that it will have no ASICs/proprietary parts - just off-the-shelf op-amps, CMOS and TTL cirucits. And a bucketload of transistors of course (almost 600)"