Hi Bruce,
As you said you do have possitive result on your pandaboard, I did some further experimenting. And ... I found the issue. It turns out that "gcc -Wall -lasound -lpthread -lrt -o gmskmodem gmskmodem.c" is not the same as "gcc -Wall -o gmskmodem gmskmodem.c -lrt -lasound -lpthread" :-) The latter one does compile OK. The first one fails with linking-errors. This is good as I can now see if I cannot get "codec2" do compile natively on the board. 73 Kristoff - ON1ARF On 07-06-12 09:02, Kristoff Bonne wrote: > Hi Bruce, > > > On 07-06-12 02:48, Bruce Robertson wrote: >> Both the gmsk and the fdmdv modems nicely encoded David's raw samples, >> decoded, and played them through the audio out on my pandaboard >> running linux. >>> Very interesting. >>> >>> How did you comile the modem? On the pandaboard itself, or >>> crosscompiling on a PC. >>> >> On it itself, using Ubuntu 11.04. > Strange. > I tried it with 11.10 and 12.04, but I haven't tried the 11.04 release. > > I should check if the card-flash image for 11.04 still around somewhere. > > > >> FWIW, I don't recommend using alsa on pandaboard/ubuntu. I'm finding >> pulseaudio much more reliable, especially with regard to the on-board >> audio-in jack. > I started with ALSA as that worked best on my other board (the > friendlyarm mini i2440). > > As I have plans to change the code to allow it to work without sound > libraries (which would make it easier to compile on windows), so -why > not- add an option to use pulseaudio. > OK, something for on my "to do" list. :-) > > > > >> My goal is to pair the pandaboard with an FT-817, then use my TS-2000 >> to beacon Codec2 modulated with your modems. I'll drive or bike some >> distance away and see what I can hear. Alternatively, I could do a >> basestation reverse beacon, with the decoded audio piped to Skype or >> some other digitally connected service. > I tested the D-STAR gmsk code with a parrot. > > Perhaps, even more fun, a cross mode parrot: FM to codec2 and the other > way around. > Hmm. This would require a merge of the gmsk modem and the wav-modem I > also have (pre-pre-pre alpha code). OK. I'll put that on the "crazy > idea" list for the time being. :-) > > > > >> 73, Bruce > 73 > Kristoff - ON1ARF > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
