Problem with Audio

Dear All,

I am trying my hands at GNU Radio on Ubuntu 10.1. I have been successful
installing GNU but am not able to use Audio sink in GRC. The error

*audio_alsa_sink[hw:0,0]: Device or resource busy
Traceback (most recent call last):
File “/home/praphul/”, line 42, in
tb = top_block()
File “/home/praphul/”, line 28, in init
self.audio_sink_0 = audio.sink(48000, “”, True)
File “/usr/lib/python2.6/dist-packages/gnuradio/”, line
in sink
return _audio_alsa.sink(*args, *kwargs)
RuntimeError: audio_alsa_sink

I have tried several sampling frequencies for Audio sink and error is
similar. Also, the is returning following error:

gr_vmcircbuf_createfilemapping: createfilemapping is not available

Please help and suggest solutions

– Praphul

On 10/12/2010 12:40 PM, praphul chandra wrote:

/audio_alsa_sink[hw:0,0]: Device or resource busy/
That should be the dead giveaway. Something else is using the audio
device. Do you have a browser up that was recently
using Youtube, for example?