New Quad OPL3 Hybrid FM / Analogue synth build \ VOGONS

New Quad OPL3 Hybrid FM / Analogue synth build

Topic actions

Post a reply

First post, by bradholland

Posted on 2018-09-04, 19:31

bradholland Offline

Rank Newbie

Rank: Newbie
Posts: 1
Joined: 2018-09-04, 19:24

Hey Guys,
Thought i'd share a picture of the prototype of a synth I am building based on 4x YMF289B
This also includes CEM3320 (cloned) analogue filters and VCAs the filters use the same topology as the classic Elka Synthex polysynth from the 80s.
Each YMF289B has two filters attached and 2 vcas

I wanted to create a synth that can be used for FM programming, but also be used as a classic subtractive style synth too,
Will be posting some demos soon enough...

Attachments

Filename

40628834_1130059323811453_6673636092807217152_n.jpg

File size

285.83 KiB

Views

494 views

File license

Fair use/fair dealing exception

Reply 1 of 5, by mrau

Posted on 2018-09-04, 20:03

mrau Offline

Rank Oldbie

Rank: Oldbie
Posts: 1145
Joined: 2015-11-28, 12:43

looks nice. i'm probably to uneducated to ask serious question, but still - why do You need 4?

Reply 2 of 5, by powershoes

Posted on 2018-09-05, 00:59

powershoes Offline

Rank Newbie

Rank: Newbie
Posts: 11
Joined: 2013-06-05, 21:37

mrau wrote:
why do You need 4?

one example is voice stacking/detuning without running out of polyphony, especially with instruments in 4op modes.

will there be a multi-timbral midi implementation for this synth?

Reply 3 of 5, by Tree Wyrm

Posted on 2018-09-05, 13:08

Tree Wyrm Offline

Rank Newbie

Rank: Newbie
Posts: 65
Joined: 2006-02-16, 22:41

Neat, a hybrid FM/SA synth, would love something like that!

Reply 4 of 5, by root42

Posted on 2018-09-05, 14:15

root42 Offline

Rank l33t

Rank: l33t
Posts: 2073
Joined: 2018-01-27, 13:23
Location: Germany

I don't play the piano or anything, but I would love to hear some demos! 😀 Looking forward to progress on this!

YouTube and Bonus
80486DX@33 MHz, 16 MiB RAM, Tseng ET4000 1 MiB, SnarkBarker & GUSar Lite, PC MIDI Card+X2+SC55+MT32, OSSC

Reply 5 of 5, by xjas

Posted on 2018-09-06, 08:34

xjas Offline

Rank l33t

Rank: l33t
Posts: 2564
Joined: 2015-09-07, 02:29

Woo, nice! Looking forward to updates with great interest. 😀 I need to finally get around to my 8xSID build BTW.

mrau wrote:
looks nice. i'm probably to uneducated to ask serious question, but still - why do You need 4?

I don't see any reason why you wouldn't want four chips!

At a REALLY basic level, you have four FM operators per chip, and the four chips are essentially bridged with Amplitude Modulation. You could build all kinds of crazy operator chains with this. Or just use them for extra voices in some monster polyphonic composition...

twitch.tv/oldskooljay - playing the obscure, forgotten & weird - most Tuesdays & Thursdays @ 6:30 PM PDT. Bonus streams elsewhen!

Go to top of page Go to top of page

Back to Sound

Main menu

Common searches