Re: [Jack-Devel] Problems with audioadapter used with capture only interface

On 12/29/2013 11:43 AM, Wojciech Zabolotny wrote:
> What worked for me, was (in three different consoles of the embedded system):
> # jackd -r -dnet -i -C0 -P1
> # alsa_in -d hw:0,1 -r48000 -p256 -n3
> # jack_connect alsa_in:capture_1 system:playback_1
> however then I had some problems with xruns/latency
> 
> Is such solution acceptable as a substitute of not working audioadapter?
> Can I expect that with fixed audioadapter I should be able to reach lower
> latency and less risk of xrun?

Hello Wojciech,

Afaik the net backend doesn't have -C and -P options, also -i needs an
integer as a value. So the first command should throw out an error. And
it seems like you're trying to run JACK as root and with the -r option
while you probably want to use JACK with -R (which is also the default).
Using alsa_in increases the change of xruns and it also increases
latency. And in your first mail you said that you were dealing with a
capture only interface which makes me wonder where the system:playback_1
JACK port comes from. Could you provide some more information on your
setup? What's in /proc/asound/cards?

Best,

Jeremy

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