Carlson, Douglas wrote:
I am relatively new to gnuradio – I’ve been trying to get everything
up an running – after long vacation – I’m back at it. I’m struggling
with the “sound” part of it.
I’m running FC5 on a compact computer with an nvidia sound card. I am
following the instructions given in wiki for FC5 build (did most
recent last night)
gr-audio-oss seemed to configure and build along with most everything
else. When I run dial_tone.py – I get a dial tone out of speakers –
When I run, usrp_wfm_rcv.py, with –f 107.9M (Boston area FM station) –
I get indication of signal – demodulation seems to function – but
nothing out of speakers – not even white noise. Seems like an issue
with the audio sink or something. Any idea where I should be looking
for the problem?
gr-audio-alsa is the preferred sound driver.
If audio works in dial_tone.py then it should work in the other app
unless your soundcard doesn't support the sample rate it uses (32K). Try
using the following option on the command line:
-O plughw:0.0
This enables the alsa audio rate resampler.
Matt
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