Ring (and/or Balanced) Modulation for the modulator masses

[BetterOffShred]

I ordered a NE565A .. so I can build an Anderton Ring mod with effects loop... they are pretty jam. Seen a few in this thread.. one here recently

[ck3]

It turns out the Ringmaster seems to function normally when powered by the 18V 100ma port on my One Spot CS7. I'm surprised given the current draw is 180ma (per the Pigtronix website), but definitely stoked now that noisy power is no longer an issue.

[eyobeez]

Glad it's working for you, ck. The ringmaster seems like a sweet ped.

My vitruvian is on the way from alexsga

[alexsga]

[Chankgeez]

https://www.youtube.com/watch?v=JqmCE22tCPo

[lordgalvar]

Bandpass!

Sounds good!

[Chankgeez]

https://www.youtube.com/watch?v=WrTwHZxmcqE

[lordgalvar]

Some links:

I always wondered if the 200e freq shift ring mod was analog. Looks like digital carriers with analog signal: https://www.muffwiggler.com/forum/viewt ... 9582756379

Speaking of frequency shifting, Todd Barton is in the case: https://www.instagram.com/p/BqCiDemFSmX ... v3feepdpdd

And Chankgeez showed me this fancy guy:
http://synthworld.blogspot.com/2015/05/ ... ation.html
And a sound sample: http://theshamblers.blogspot.com/2011/1 ... emolo.html (SoundCloud link near bottom)

Ring Mod shout-out featuring The Vermona, bitrman, mf-102: http://www.dubbhism.org/2010/02/ring-mo ... er-mf.html

More shootouts: http://ernstvanderloo.com/?p=24

And if that isn't enough, how about a spendy X Japan ring mod: https://reverb.com/item/11851554-free-t ... japan-rare I think it's for violin though.


http://www.youtube.com/watch?v=YLk7dufzZVs


http://www.youtube.com/watch?v=jtrgWf5JjL8
haha, I was at this show

(I've never found an x Japan song that I can pick out ring mod though...but I haven't listened to everything )

[lordgalvar]

https://www.youtube.com/watch?v=WrTwHZxmcqE

Nice!

I missed out on that one...

Still got my v1

Back to frequency shifting...
I think the dome filter is used when in inserting an external wave. The dome filter creates a phase shift/cancel of the external wave. The signal is balanced modded against the 0 degree external wave and then demodulated by the dome filter output to cancel either the phase of the lower or upper frequency shift. I think the Bode and Haible work on this idea.

If there is no external input, I don't think you need the dome filter...just a quadrature oscillator which is what I think the buchla 100 patch and 360 systems patches are based on. I think the buchla just uses an external phase shifter to create the quadrature oscillator...his ring mod design is a bit different and based on matched pairs or transistors (like the Carlin). The 360 20/20 looks like it used two mc1496 (may be wrong) to mod/demod.

It's all guessing at this point though.

If a digital digital oscillator with quadrature output and some ad633 or other modern chips are used, a compact design may be possible. The modern chips may be a needed to keep everything balanced for perfect cancellation....don't know their tolerances and how hard it would be to match or trim?

[lordgalvar]

IMG_20181129_115009.jpg (56.3 KiB) Viewed 2788 times

IMG_20181129_115018.jpg (60.88 KiB) Viewed 2788 times

Metro Modular MM315 Balanced Modulator.

Features:

-MC1595L based balanced modulation
-No internal carrier
-10hp Doepfer 3U Eurorack format
-Input Level for both Carrier and Modulator
-AC and DC offset levels
-4 jack multipule, 2 extra attenuators
-Well balanced, elegant, and simple

http://www.youtube.com/watch?v=gNt0OqxSc5Y
∆AC coupled sounds:

-Tremolo drum sounds throughout (more at beginning and end).
-Balanced mod against phased signals from same oscillator (approx. 2:13 start)
-Audio rate modulation of audio sample (scattered around the middle)
-Some additional non-ring mod sounds scattered to fill space

http://ww.youtube.com/watch?v=QeaG8d8uT64
∆Audio rate sounds:

-Balanced Modulation of two oscillators
-Oscillator vs. Radio
-Radio ring mod stuff got layered over
-Feedback sounds are oscillator balanced modulated against itself with the same waveform
-All Sounds from mm315 (with a boss re-20 tacked on)

http://www.youtube.com/watch?v=57ei6DTF5TQ
∆DC offset sounds:

-Complex cv modulation by combining several different LFOs and envelopes via balanced modulation to control amplitude, harmonics, phase and other stuff
-More of a utility thing than fun

Maybe guitar video?

[Chankgeez]

[Chankgeez]

Looks like a nice Blue Ringer in case anyone's interested:

https://reverb.com/item/17346509-frostw ... -modulator

[Chankgeez]

Believe there's a frequency shifter in this here jam:



https://www.youtube.com/watch?v=ELG0ujI7zqY



https://www.youtube.com/watch?v=ftyw5_hX4H0

[MrNovember]

Wait, wait, wait, wait...what do you mean new Blippoo Box? I've been on the wait list for a Blippoo Box for years!

[Chankgeez]

I just post 'em as I find 'em.

Also, more frequency shifter:



https://www.youtube.com/watch?v=yWIs3gJCDew