Sound works just fine on my E100.  I haven't done anything special aside
from turning up the sound levels in alsamixer.

I have updated the c++ dial_tone example, and can successfully use it on my
E100 without issue.  The updated code is here:

https://github.com/bhilburn/gnuradio-on-e100/tree/benchmark_uhd_work/gnuradio-examples/c++/dial_tone

<https://github.com/bhilburn/gnuradio-on-e100/tree/benchmark_uhd_work/gnuradio-examples/c++/dial_tone>Note
that the commits for that are kind of scattered about, unfortunately.  After
updating the dial_tone example, I turned it into a test for something else,
and then realized the updated dial_tone on its own was useful and reverted
it back.  As a result, you probably don't want to cherry-pick individual
commits, but just grab the files you want.  I could put together a patch
that does it, but I'm about to head out for the day.

Remember to enable the Makefile and SUBDIR, like the README file says in the
dial_tone directory.

Hope this helps!

Cheers,
Ben

On Tue, Mar 8, 2011 at 3:36 PM, Ingmar Meins <[email protected]> wrote:

>  I have not been able to get sound working (quickly) on my E100 either so I
> gave up and plugged in a USB headset which I address as hw:1,0 in python.
>
>
> On 9/03/2011 5:12 AM, Divya Paul wrote:
>
>   Hi,
>
>  I am new to using GNUradio and the USRP hardware. I installed GNUradio,
> GRC and UHD on the E100. I have run the examples for the UHD and it is
> working without any problem. From the GNUradio examples, When I tried
> running the dial_tone.py, I get the following error:
>
>  audio_alsa_sink[hw:0,0]: Device or resource busy
> Traceback (most recent call last):
>   File "./dial_tone.py", line 55, in <module>
>     my_top_block().run()
>   File "./dial_tone.py", line 48, in __init__
>     dst = audio.sink (sample_rate, options.audio_output)
>   File "/usr/local/lib/python2.6/site-packages/gnuradio/audio_alsa.py",
> line 329, in sink
>     return _audio_alsa.sink(*args, **kwargs)
> RuntimeError: audio_alsa_sink
>
>  Also,in python, the importing of modules is working:
>  Python 2.6.5 (r265:79063, Dec 14 2010, 12:41:31)
> [GCC 4.5.2 20101204 (prerelease)] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
> >>> from gnuradio import gr
> >>> from gnuradio import audio
>  >>>
>
>  When I go to System--> Preferences --> Sound, a window pops up that says
> 'Waiting for sound system to respond'. Does this mean that there is no sound
> system?
> How can I verify that my GNUradio install on the E100 is done right?
>
>  Thanks,
> Divya.
>
>
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