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Re: [Discuss-gnuradio] audio_alsa_sink problem


From: Arto Oksanen
Subject: Re: [Discuss-gnuradio] audio_alsa_sink problem
Date: Mon, 2 Mar 2009 17:10:10 +0200

Neither did work, but changing the sample rate to 48000 did the trick.
Thanks davek!

arto


2009/3/2 Josh Blum <address@hidden>:
> I will add a note to the documentation in grc audio blocks about plughw.
>
> Can you edit the generated code and test the following 2 combinations:
>
> self.audio_sink_0 = audio.sink(44100, "plughw:0,0", False)
> self.audio_sink_0 = audio.sink(44100, "plughw:0,0")
>
> Let me know. -Josh
>
> Arto Oksanen wrote:
>>
>> this is from the working dial_tone.py
>>
>> dst = audio.sink (sample_rate, options.audio_output)
>>
>> and this is from GRC generated code:
>>
>> self.audio_sink_0 = audio.sink(44100, "plughw:0,0", True)
>>
>> For me it looks like the generated code has an extra parameter..
>>
>> arto
>>
>> 2009/3/2 Josh Blum <address@hidden>:
>>>
>>> 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
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Discuss-gnuradio mailing list
>>>>> address@hidden
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>>>>>
>>>>
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>>
>>
>>
>



-- 
Arto Oksanen
address@hidden
Muurame, Finland




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