Re: [Discuss-gnuradio] audio_alsa_sink problem

[davek]

putting plughw:0,0 in as the hardware name for the audio sink worked
for me, the default was blank...

On Sun, Mar 1, 2009 at 7:48 PM, Josh Blum <address@hidden> wrote:
> The audio sink in GRC has 3 parameters:
>        sample_rate, device_name, ok_to_block
>
> The generated code looks like this:
>        audio.sink(sample_rate, device_name, ok_to_block)
>
> If entering plughw:0,0 for the device_name does not fix the problem, I am
> unsure about what is wrong... GRC generates the code, we can always compare
> this to the code in a working example.
>
> Is the GRC block missing an extra (4th) parameter to audio.sink?
>
> -Josh
>
> davek wrote:
>>
>> im having the same problem
>> dial tone in GRC crashes with the same error
>> but the python dialtone example works fine
>> running svn trunk on ubuntu 8.10 64bit standard install with a
>> gigabyte ga-ep45-ud3r onboard audio...
>> if you figure it out let me know...
>> thanks..
>>
>>
>> On Sun, Mar 1, 2009 at 4:29 PM, Arto Oksanen <address@hidden>
>> wrote:
>>>
>>> Using plughw:0,0 does not change anything. The error is the same.
>>>
>>> arto
>>>
>>> 2009/3/1 Eric Blossom <address@hidden>:
>>>>
>>>> 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
>>>>
>>>
>>>
>>> --
>>> Arto Oksanen
>>> address@hidden
>>> Muurame, Finland
>>>
>>>
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>>
>>
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