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Audio Interface Feedback Loop?

Started by Michael Trigoboff, February 12, 2022, 02:16:38 PM

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Michael Trigoboff

I just got my audio interface (FocusRite Scarlett 8i6) yesterday and hooked it up. Things are working, but I think I have a problem.

I have the digital audio output of the Genos hooked up to the digital audio input of the 8i6. I have analog audio coming out of the 8i6 going into the AUX analog inputs of the Genos.

I tried recording audio from the Genos on my PC in Cubase. It worked, but the audio level was very low. So I adjusted the Genos digital audio output up to +6dB. That improved things, but not enough. So I adjusted it up to +12 dB.

At that point, the audio level indicators in Cubase went up to maximum over the course of about two seconds and stayed there. This makes me think that I have some kind of feedback loop going on, possibly that the AUX input to the Genos is going right back out on the digital audio output.

Is it possible that this is going on? If so, is there some setting that disconnects AUX input from the digital audio output?
retired software developer and Computer Science instructor
Grateful Deadhead emeritus

"He had decided to live forever or die in the attempt."
-- Joseph Heller, Catch-22

Toril S

Are you using unbalanced cables from Genos to the interface?
Toril S

Genos, Tyros 5, PSR S975, PSR 2100
and PSR-47.
Former keyboards: PSR-S970.

https://www.youtube.com/channel/UCLVwWdb36Yd3LMBjAnm6pTQ?view_as=subscriber



Toril's PSR Performer Page

Michael Trigoboff

RCA plug S/PDIF from Genos to 8i6, unbalanced 1/4" from 8i6 to Genos.
retired software developer and Computer Science instructor
Grateful Deadhead emeritus

"He had decided to live forever or die in the attempt."
-- Joseph Heller, Catch-22

Michael Trigoboff

Figured it out. I had it wired wrong. It needed to be connected like this:

EDIT: Arrow from Genos to audio interface needed to be blue.

[attachment deleted by admin]
retired software developer and Computer Science instructor
Grateful Deadhead emeritus

"He had decided to live forever or die in the attempt."
-- Joseph Heller, Catch-22

Toril S

Toril S

Genos, Tyros 5, PSR S975, PSR 2100
and PSR-47.
Former keyboards: PSR-S970.

https://www.youtube.com/channel/UCLVwWdb36Yd3LMBjAnm6pTQ?view_as=subscriber



Toril's PSR Performer Page

Michael Trigoboff

By the way, with this setup, the Genos volume control knob does nothing. I am controlling volume via the volume control knob on the audio interface.
retired software developer and Computer Science instructor
Grateful Deadhead emeritus

"He had decided to live forever or die in the attempt."
-- Joseph Heller, Catch-22