Re: [Discuss-gnuradio] RuntimeError: audio_alsa_source

[Eric Blossom]

On Fri, Dec 14, 2007 at 12:23:21PM -0800, Brook Lin wrote:
> 
> 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

You are apparently specifying an ALSA device that you don't have.
Why don't you try the default,  that is, no -I <foo> option.

Eric