Built GNUradio from git on Debian Testing AMD64 this afternoon, and
intending to use it with a Funcube Dongle and gr-fcd. I am having some
difficulty with the ALSA sink and an ICE1712 [M-Audio 2496] sound card.
I created a very simple flow graph with a sine wave Signal Source
straight in to an Audio Sink. When I try to execute it, I get:
Traceback (most recent call last):
File "/home/alex/downloads/radio/gr-fcd/apps/top_block.py", line 118,
in <module>
tb.Run(True)
File
"/usr/local/lib/python2.6/dist-packages/grc_gnuradio/wxgui/top_block_gui.py",
line 72, in Run
if start: self.start()
File
"/usr/local/lib/python2.6/dist-packages/gnuradio/gr/top_block.py", line
97, in start
self._tb.start()
File
"/usr/local/lib/python2.6/dist-packages/gnuradio/gr/gnuradio_core_runtime.py",
line 1480, in start
return _gnuradio_core_runtime.gr_top_block_sptr_start(self)
RuntimeError: audio_alsa_sink(3): insufficient connected input ports
(10 needed, 1 connected)
Done
I have connected an old USB sound card, which becomes hw:2,0 and
pointed it at that, and it works fine. So there seems to be some kind of
incompatibility between gnuradio and this sound card. Where is the best
place to start looking into what the issue might be?
alexd
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