On Sat, Mar 17, 2007 at 01:15:34AM -0600, Bahn William L Civ USAFA/DFCS wrote: > > I still can't get any input from the sound card. I have installed GNU > Radio on a completely different computer. The dial_tone.py program > works. I get a flat line (it bounces around between -8e-5 and +4e-5) > when I run audio_fft.py in the oscilloscope mode. > > In the hopes of perhaps, possibly getting some kind of a response, I'll > try to ask very specific questions. > > 1) Is the signal source for audio_fft.py supposed to default to the > sound card microphone? > > 2) If not, what is the default? > > 3) If not, can I tell it to use the sound card microphone? > > 4) If yes, how?
I'm running FreeBSD and the sound cards are controlled by the 'mixer' command. There is a similar command in Linux. Maybe 'amixer'? I have to select the input with the 'mixer', either mic or line. I also have a control named 'rec' which sets the input volume level. The latest versions of FreeBSD save the mixer settings across re-boots. I have not found a way to set these from GR and I have some soundcards which do show a 'rec' control and do not work. Best I can tell the soundcard world is a 'black art' and there are no standards. Maybe someone can shed more light on this. -- LRK [EMAIL PROTECTED] _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
