Re: [Discuss-gnuradio] RuntimeError: audio_alsa_source

[Brook Lin]

Firas, I am running gnuradio3.1.1 on 64-bit machine, using Fedora7



Firas A. wrote:
> 
> 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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