Fantom Platform

Digital whine from the outputs

Digital whine from the outputs

16 Oct 2019, 11:05
This is driving me crazy :

If I crank up the volume of my audio interface with the Fantom connected, I hear a digital whining sound (like an old modem)...but when I record it in Cubase and listen back, it's not recorded (which is good)! The headphone output of the Fantom is silent also, the whining starts once I connect the Fantom to the Octa Capture (also tried it with the headphone output to an input of the interface).

I have disconnected all my other synths from my audio interface (USB Roland Octa-Capture), just leaving the audio cables from the Fantom. Once I connect the power cable in the Fantom, the whining starts (even without starting the Fantom).

I tried the balanced outputs on the Fantom, I tried connecting the audio of the Fantom to the audio in of my MODX, I tried an older NI Komplete Audio 6 USB interface, I tried putting the electricity cable of the Fantom on the same power strip and on another power strip as the Octa Capture, I tried changing the electricity cable of the Fantom, nothing helps.

Maybe a grounding issue? But it's strange that my other synths don't have this (MODX, Kurzweil PC4, Virus Ti). Only difference I see is that these all use an external adapter.

Any help is welcome, thanks!
Peter

Re: Digital whine from the outputs

10 Nov 2019, 15:51
Bump - did you ever sort this ? Potential fantom buyer here who also uses the roland octa-capture ….

Re: Digital whine from the outputs

31 Jul 2022, 15:47
Try not using USB between the Fantom and interface. (Use 1/4" or XLR for audio, use 5-pin for MIDI.) Or you could add a USB ground isolator (more expensive solution), or you could try cutting the ground wire of the USB cable you're using (a bit of a hack).

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