Re: [Discuss-gnuradio] RuntimeError: audio_alsa_source

[Firas A.]

What is your OS Type? (Fedora, Ubuntu, .....)

Firas

Brook Lin wrote:
> 
> Hi Firas, I am using gnuradio3.1.1
> 
> 
> Firas A. wrote:
>> 
>> What is your OS, gnuradio version ?
>> 
>> Firas,
>> 
>> 
>> Brook Lin wrote:
>>> 
>>> Hi All,
>>> 
>>> I just ran tx_voice and rx_voice.And I wanted to transmit a music and
>>> receive it using Basic RX/TX. However, I got the error:
>>> $ sudo ./tx_voice.py -f 30M -I music.pcm -T A -v
>>>>>> gr_fir_fff: using SSE
>>> bits per symbol = 1
>>> Gaussian filter bt = 0.35
>>> Using TX d'board A: Basic Tx
>>> Tx amplitude     12000
>>> modulation:      gmsk_mod
>>> bitrate:         50kb/s
>>> samples/symbol:    5
>>> interp:          512
>>> Tx Frequency:    30M
>>> ALSA lib pcm.c:2145:(snd_pcm_open_noupdate) Unknown PCM musicpcm.pcm
>>> audio_alsa_source[musicpcm.pcm]: No such file or directory
>>> Traceback (most recent call last):
>>>   File "./tx_voice.py", line 150, in <module>
>>>     main()
>>>   File "./tx_voice.py", line 121, in main
>>>     tb = my_top_block(mods[options.modulation], options)
>>>   File "./tx_voice.py", line 69, in __init__
>>>     self.audio_rx = audio_rx(options.audio_input)
>>>   File "./tx_voice.py", line 52, in __init__
>>>     src = audio.source(sample_rate, audio_input_dev)
>>>   File "/usr/lib64/python2.5/site-packages/gnuradio/audio_alsa.py", line
>>> 219, in source
>>>     return _audio_alsa.source(*args)
>>> RuntimeError: audio_alsa_source
>>> 
>>> Does anyone know how to solve it? I don't quite understand.
>>> 
>>> Thanks in advance!
>>> 
>>> 
>> 
>> 
> 
> 

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