[LAU] different soundcards for in/out in alsa vs. jack

Max abonnements at revolwear.com
Mon May 27 18:28:55 CEST 2019

On 27.05.19 13:50, Jeanette C. wrote:
> May 27 2019, Max has written:
> ...
>> Surprisingly it works quite well with ALSA, but not so much with jack.
>> Both is from Pd. Jack has a plethora of settings, so this could have 
>> to do with it and make my blanket statement above too simplistic, but 
>> I wonder is there a general design in jack which makes it harder to 
>> rund different cards for i/o or do i have the wrong settings? Where to 
>> look at?
> ...
> Have you tried alsa_in/alsa_out for one of your cards? It is designed to
> integrate another card into a JACK setup. If your cards have a way of
> synchronising (SP/DIF or wordclock) you could also try that and use the

unfortunately not.

> -C and -P options of JACK to set up different capture and playback
> devices (which I suppose you are already using).

maybe - I use qjackctl or cadence, trying to keep my hands clean.

> JACK tries to be VERY precise. I don't know the technical details, but I
> think they could be summed up as: even if you don't hear
> problems/discrepancies, it doesn't mean there aren't any.
> Best wishes and good luck,
> Jeanette

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