[LAU] JACK and S/PDIF sync'ed delta 1010 cards: bad vs. evil?

Tim E. Real termtech at rogers.com
Fri Oct 16 01:19:17 CEST 2020

On 10/15/20 12:21 PM, Jeanette C. wrote:
> If, as has happened before, the setup isn't remembered correctly and 
> the S/PDIF sync is not made, occasionally the cards begin to have 
> input problems. The sound suddenly degrades with an effect like bad 
> resampling (decimation effect).

That noise will generally happen with all cards when they are not 
synchronized to another card.

Synchronizing the cards together is crucial, otherwise the two cards' 
relative timings will drift over time,

  causing the noise to drift in and out over time.

Notice: If you still get strange noise drifting in and out, or strange 
popping noises, even when the

  cards are rock-solid synchronized, or even just with one card, even in 
simple playback mode

  watching videos or playing music, I am always obliged to recommend to 
try running just one CPU core.

Yes, just one CPU core. Trust me, it was thoroughly verified. Been 
through that with my Delta 1010LT.

It is possible you may have the same problem. Or not.

I can explain in detail if desired. I posted my solution some years ago.


The MusE Sequencer project.

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