1 Topic by RobbySunshine (edited by RobbySunshine 2024-08-13 22:57:47)

  • Registered: 2021-02-02
  • Posts: 5

Topic: ufx+ and antelope 32channel MADI ground loop/hum

Hello everyone,
I use a ufx+ as front with with an Antelope Orion 32Gen2 connected via MADI as slave.
The Orion is 32 is connected to the 32 Tape IN/OUTS of my analog inline board.
When I want to record the Mix Bus back into the UFX, I get noise, which sounds like a ground loop and some static computer hiss sprinkled in. This happens with any UFX input, but if I print back into the Antelope everything is great and noise free.
I am using all balanced connections.
I have both interfaces and the board in the same AC circuit, and have played around with a lot of different combinations but cannot find the problem.
Is it common practice to not use MADI and interface audio circuits on a board?

  • Registered: 2011-07-21
  • Posts: 50

Re: ufx+ and antelope 32channel MADI ground loop/hum

RobbySunshine wrote:

This happens with any UFX input, but if I print back into the Antelope.

The conclusion of this sentence would help a lot ;-)

Is it wired through a patchbay?
Have you tried going direct to rule out a patchbay grounding problem?

Best,
Frank

Happy Fireface UFX+, Octamic XTC and M-32 Pro user.
http://www.stoersender-studio.ch
  • waedi
  • DAW Mastermind
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  • From: Swiss Zürich
  • Registered: 2020-12-08
  • Posts: 4,522

Re: ufx+ and antelope 32channel MADI ground loop/hum

RobbySunshine wrote:

Hello everyone,
I use a ufx+ as front with with an Antelope Orion 32Gen2 connected via MADI as slave.
The Orion is 32 is connected to the 32 Tape IN/OUTS of my analog inline board.
When I want to record the Mix Bus back into the UFX, I get noise, which sounds like a ground loop and some static computer hiss sprinkled in. This happens with any UFX input, but if I print back into the Antelope.
I am using all balanced connections.
I have both interfaces and the board in the same AC circuit, and have played around with a lot of different combinations but cannot find the problem.
Is it common practice to not use MADI and interface audio circuits on a board?

your analog inline board, it's a mixing console I guess, are there any mic input gains open.
Close all unused input gains fully. A open input gain can bleed-in noise everywhere.

M1-Sequoia, Madiface Pro, Digiface USB, Babyface silver and blue
  • Registered: 2021-02-02
  • Posts: 5

Re: ufx+ and antelope 32channel MADI ground loop/hum

frank.acklin wrote:
RobbySunshine wrote:

This happens with any UFX input, but if I print back into the Antelope.

The conclusion of this sentence would help a lot ;-)

Is it wired through a patchbay?
Have you tried going direct to rule out a patchbay grounding problem?

Best,
Frank


Oops was running low on coffee;)

(…) if I print back into the Antelope instead the noise is completely goe. (in essence keeping all audio I/O in the board Antelope-only)

I have some inserts going to a patchbay, but completely detaching made no difference.