Sorry to re_post: audio_alsa_sink[hw:0]: Device or resource busy

GNU Radio
1

Sorry to post again.
As it was my first time to post on mail list, I didn’t know how to reply
messages in mail list, so I have to start a new thread and using this
stupid way.

When I want to connect the signal to the sound card, an error occurs as
below:

audio_alsa_sink[hw:0]: Device or resource busy
RuntimeError: audio_alsa_sink

I want the signal to be output to the sound card, but the card is in
use.
I tried lsof|grep /snd and kill -TERM the process in using sound card
pulseaudio, but doesn’t work.
Then I uninstalled the pulseaudio but the problem remains.

I also tried to set the sound sink device name to be: hw:0 / pulse /
plughw:0,0
none works.

Any suggestion?

And in last thread, Alex asked about:“access the ALSA interface with any
other audio application”.
I could run alsamixer and I could listen mp3 using Totem Movie Player on
Ubuntu.

So, what next?
Thanks.

Qin J.

2

I get this too. I find that Gnuradio needs EXCLUSIVE access to the audio
hardware. That is you must not have any other device using the audio
system. That includes programs in the background and unexpected programs
such as web pages with sound, flash etc.

3

On Fri, Sep 16, 2011 at 1:16 AM, Qin J. [email protected] wrote:

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And in last thread, Alex asked about:“access the ALSA interface with any
other audio application”.
I could run alsamixer and I could listen mp3 using Totem Movie Player on
Ubuntu.

So, what next?
Thanks.

Qin J.

Qin J.,
This is an ALSA issue. You should try turning off any other application
that
might be trying to access the system’s sound hardware, like your web
browser.

This is such a lame answer, but one easy thing to try is to reboot your
machine and try to run the GNU Radio app first thing and see if it works
then.

Tom