Re: [Discuss-gnuradio] audio_alsa_sink problem

[Eric Blossom]

On Sun, Mar 01, 2009 at 09:38:31PM +0200, Arto Oksanen wrote:
> When trying to use audio sink in GRC I get following error:
> 
> audio: using audio_alsa
> audio_alsa_sink[hw:0,0]: set_period_time_near failed: Invalid argument
> Traceback (most recent call last):
>   File "/home/gr/top_block.py", line 45, in <module>
>     tb = top_block()
>   File "/home/gr/top_block.py", line 32, in __init__
>     self.audio_sink_0 = audio.sink(44100, "", True)
>   File "/usr/local/lib64/python2.5/site-packages/gnuradio/audio_alsa.py",
> line 307, in sink
>     return _audio_alsa.sink(*args, **kwargs)
> RuntimeError: audio_alsa_sink
> 
> 
> The audio test samples in gnuradio-examples/python/audio do work with
> no problems.
> 
> I tried to google for further information, but found only the archive
> of this mail list suggesting to search the net for the solution. Looks
> like a recursive solution for me. :-)

Thanks for searching first!

> I am new to gnuradio stuff so it may well be my ignorance causing
> this, but I can not find any tutorials or manuals or documentation
> especially for the GRC.

I've seen the error before (but not on my h/w).  Can you try using
plughw:0,0 instead of hw:0,0 and see if that changes anything?

Eric