Hi Jim,
so, that's an interesting problem with your sound system. I don't see why it *should* fail
at six created sources (my suspicion is that the non-deterministic destruction of objects
that is inherent to Python means there's six parallel endpoints active, from a perspective
of ALSA and pulseaudio).
Sadly, we don't have a test that covers this (yet?).
Maybe this is a problem specific to the way the ALSA source works.
Would be able to test the portaudio sink? For that, we'll have to force GNU Radio to use
it (because it uses ALSA by default). You can do that by adding
[audio]
audio_module = portaudio
to your GNU Radio configuration, so to a file ending in .conf (e.g., audio.conf) in the
directory that `gnuradio-config-info --userprefsdir` shows.
Best regards,
Marcus
On 15.04.24 02:18, Elmore Family wrote:
Marcus,
I first tried:
For ALSA users with audio trouble, follow this procedure ( which I followed):
The result was the same.
Then I selected pulse as the device name. it worked for 6 iterations of the loop and then
gave the following error:
mmap() failed: Cannot allocate memory
mmap() failed: Cannot allocate memory
gr::log :ERROR: audio_alsa_source6 - [pulse]: Input/output error
Traceback (most recent call last):
File "/home/pi/gr-ft8_rxtx/python/ft8_rxtx.py", line 337, in <module>
main()
File "/home/pi/gr-ft8_rxtx/python/ft8_rxtx.py", line 320, in main
FT8_Receive.main()
File "/home/pi/gr-ft8_rxtx/python/FT8_Receive.py", line 205, in main
tb = top_block_cls()
File "/home/pi/gr-ft8_rxtx/python/FT8_Receive.py", line 85, in __init__
self.audio_source_0 = audio.source(samp_rate, 'pulse', True)
RuntimeError: audio_alsa_source
Jim
-----Original Message----- From: Marcus Müller
Sent: Sunday, April 14, 2024 3:45 PM
To: discuss-gnuradio@gnu.org
Subject: Re: Audio source - device or resource busy error
Hi Jim,
try not using the direct hardware device, but the device provided by your sound
system;
see the "for users wiht audio trouble" section on the Audio Source
documentation page.
Best regards,
Marcus
On 14.04.24 18:02, Elmore Family wrote:
I am getting the subject error when running a Python script called repeatedly from
another script.
The snippet_ft8_rxtx.py shows the call, FT8_Receive.main(), in the while loop.
FT8_Receive.py shows the called script.
FT8_Receive.pdf is the flowgraph used to generate the called script which as you can see
has been modified in main() and with check_time added.
The first call to the script is OK but the second call results in the error shown in
audio_error.txt.
Why is the audio source busy when the flowgraph is stopped (or is it not stopped?) and
how do I fix the issue?
Jim
<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
Virus-free.www.avg.com
<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
