2010/4/11 <merve_aydo...@mynet.com>: > Hello.. > We trying to run rx_voice and tx_voice python codes. It worked for > the first time we could listen voice from the receiver side. But when > we stop the code and try it again but this time an error occured > about audio_alsa_sink and code didn't run. We tried this a few times > and see that to run the code properly we should close the terminal > and open a new terminal and also shut down the usrp and open it > again.After these code could run again.What can be the reason of this > and what should we do? > I'm copying the error: > > audio_alsa_sink[hw:0,0]: Device or resource busy > Traceback (most recent call last): > File "rx_voice.py", line 133, in <module> > main() > File "rx_voice.py", line 123, in main > tb = my_top_block(demods[options.modulation], rx_callback, options) > File "rx_voice.py", line 65, in __init__ > self.audio_tx = audio_tx(options.audio_output) > File "rx_voice.py", line 54, in __init__ > audio_sink = audio.sink(8000, audio_output_dev) > File "/usr/lib/python2.6/dist-packages/gnuradio/audio_alsa.py", line > 299, in sink > return _audio_alsa.sink(*args, **kwargs) > RuntimeError: audio_alsa_sink
Hi, You can see which applications/daemons use the sound devices with lsof /dev/snd/pcmC* (pulseaudio should be okay) I have seen this error many times when using flashplayer before running a GNU Radio script, but I have never seen it on two executions of the same GNU Radio script. Maybe you terminate your script abnormally and the device is not closed? Alex _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
