Feedback on Ursa Major Stargate 323 & Dynacord VRS 23

video upload by Valmont

"Ursa Major Stargate 323 (1983) / Dynacord Vertical Reverberation System 23 (1979) interlinked : each reverb processor feeds into the other, creating a self-generating feedback loop. The strange thing about this patch is that instead of producing a typical howling feedback (like a BBD analog delay might), the reverbs are excited by their intrinsic noise, resonating in modal patterns that lead to the formation of colorful sonic clouds - aka clusters! The Dynacord (in stereo reverb mode) introduces some self-feedback, but not enough to auto-oscillate. Its output goes through the console’s EQ and is partially routed into the Ursa Major. That reverb signal is then returned to the console, EQ’ed again, and partially sent to the VRS via a second aux send. The VRS is also routed to the master bus, which is what we're hearing here.
Tweaking the feedback levels and delay times on the VRS shapes the overall feedback tone. Same with the Ursa - its dry/wet mix, predelay, decay time, and LF/HF decay crossovers all play a role in sculpting the sound.

Altogether, this setup produces evolving tonal textures that are highly sensitive to real-time parameter changes. Kind of reminds me of those cheap 1970s sci-fi soundtracks x)

(sorry for the autofocus, I forgot to disable it)

Instagram : / valmont_naudin"