Topic: Digiface USB Pops and Clicks Despite Clock Sync
Hello RME,
I am running a Digiface USB with hopes of it serving as an ADAT head end for a ferro fish, es-8, and presonus studio 1824c:
Here is a snippet of our studio layout diagram with ADAT:
https://pasteboard.co/4vlbXacbIUUN.png
We are running the internal clock of the Digiface, and have set up the other peripherals to receive their clocks via ADAT (on the Ferrofish and Presonus I can prove they are locked by unplugging the ADAT cables and either device respectively will report that it's lost it's clock source)
The Digiface seems to show that they are all synced / locked:
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The issue is despite the clock sync (and ensuring all 3 peripherals are running at 44.1kHz sample rate) I continue to get pops and clicks; specifically on the inputs coming from the presonus and the es-8
So what i've investigated so far is:
1. check the Digiface firmware for updates (none needed; see image above)
2. triple checking that all peripherals are set to receive ADAT clocks, and are at 44.1kHz (and 128 buffer size where settable)
What I intend to check next:
1. triple check All cables are clean on the ends / properply seated in their receptors.
The suspicious thing to me, is that both the presonus inputs and es-8 both pop/click at the same time; as if the digiface isn't feeding them a clock properly
(they did all work for several hours without issues a few time, but this appears to be a fluke - as at the time the presonus was reporting to not be getting clock via ADAT, but the digiface was configured to receive it's clock from the presonus - and at the same time the es-8 was working)
What else can we consider when troubleshooting this issue? (there's wordclock out on the ferrofish and the presonus can get it's clock from SPDIF in; but we would like all available channels / the es-8 must receive it's clock via ADAT or be master.
the only time the setup ran without any pops and clicks for several hours was when the presonus was reporting it wasn't receiving the ADAT clock source (at the moment we were running the presonus with clock source from ADAT and erroneously the Digiface was to receive it's clock from the presonus at the same time)
Thanks!