Jack audio source/sink status?

does anyone know if/how to get jack audio working? i tried adding the
enable to the config, but the no mention of it in the compile. tried a
few different combos of import statements, cant seem load it.

ok i jsut discovered the /etc/gr-audio and jack-audio config files. set
my default audio to jack.
however i get

Could not find audio architecture “audio_jack” in registry.
Defaulting to the first available architecture…

when running my flowgraph. any ideas ???

ok thanks for the reply
i finally made some progress and have jack support compiled in now.
however i know have another problem. So i have jackd starting at boot

ps axw
4581 ? SLsl 0:00 /usr/bin/jackd -R -d net

when i run gnuradio its forks its own instnace of jackd.

[email protected]:~$ ./jacktest.py
linux; GNU C++ version 4.4.3; Boost_104000;
UHD_003.004.000-307-gb61f4ad6

Using Volk machine: avx_64
– USRP-B100 clock control: 10
– r_counter: 2
– a_counter: 0
– b_counter: 20
– prescaler: 8
– vco_divider: 5
– chan_divider: 5
– vco_rate: 1600.000000MHz
– chan_rate: 320.000000MHz
– out_rate: 64.000000MHz

gr_fir_ccc: using SSE
len(audio_taps) = 317

gr_fir_fff: using SSE
jackd 0.118.0
Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O’Quinn, Torben Hohn
and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details

no message buffer overruns
JACK compiled with System V SHM support.
loading driver …
SSE2 detected
creating dummy driver … dummy_pcm|44100|1024|23219|2|2
SSE2 detected
audio_jack_sink[gr_sink]: unable to support sampling rate 48000
card requested 44100 instead.

Is this how its supposed to work? where are the runtime config vars for
the forked jackd process?

If JACK was not found at configure time, it will not appear in the audio
registry at application initialization time (before “main” is executed).
try going back to ‘configure’ (or cmake) to see what it thinks is going
on. - MLD

Hi David - I’m glad you got JACK going. I don’t use JACK myself, so I
don’t know how jackd works. Maybe someone else on this this does? - MLD

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