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Re: [Discuss-gnuradio] jack audio source/sink status?


From: David Kierzkowski
Subject: Re: [Discuss-gnuradio] jack audio source/sink status?
Date: Wed, 07 Mar 2012 15:47:48 -0500
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:10.0.2) Gecko/20120216 Thunderbird/10.0.2

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.

address@hidden:~$ ./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?






On 3/6/2012 10:42 AM, Michael Dickens wrote:
> 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
> 
> On Mar 6, 2012, at 10:19 AM, dave k wrote:
> 
>> 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 ???
> 




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