You could also try this file: https://www.dropbox.com/s/p52vjtgv1kw4k9e/vk100anzac_cq_1600.wav?dl=0
It's just a standard WAV file (not raw), so just open it in Audacity or play it with sox. This was our "Voice Keyer" at the QSO party, so it has a CQ call, then some silence. Cheers, Mark VK5QI On Sun, Sep 20, 2015 at 10:19 AM, Mark Jessop <[email protected]> wrote: > Try using the freedv_tx binary. I think it's just ./freedv_tx 1600 > source.raw modulated.raw > > - Mark VK5QI > > On Sun, Sep 20, 2015 at 9:58 AM, Stuart Longland < > [email protected]> wrote: > >> Hi all, >> >> What strategies do people use for testing the SM1000? I've had a report >> that the binary I built would not decode FreeDV 1600 signals. >> >> I just tried, and indeed, I could not get it, or the production binary, >> to decode a prepared signal sent from my laptop from the command line: >> >> My steps: >> $ sox ~/hamradio/projects/broadcast/vk4_warmup.mp3 -t raw -r 16000 -c 1 >> -b 16 -e signed-integer -L vk4-warmup.raw >> $ c2enc 1600 vk4-warmup.raw vk4-warmup.c2 >> $ fdmdv_mod vk4-warmup.c2 vk4-warmup.fdmdv >> $ sox -t raw -r 16000 -c 1 -b 16 -e signed-integer -L vk4-warmup.fdmdv >> -r 48000 -c 2 fdmdv.wav >> $ aplay -D hw:0,0 fdmdv.wav >> >> I used a cable to link the computer's output to the RIG SPKR jack on the >> SM1000. >> >> I ought to have heard the dulcet tones of Graham VK4BB announcing the >> times and frequencies of the WIA broadcast -- this is the recording that >> proceeds WIA News/QNews here in Queensland. Instead, I got mostly >> silence, save a few squawks from the SM1000. >> >> Is there some way that I can produce a reference FreeDV signal that the >> unit can decode? >> >> (The vk4_warmup.mp3 is from here: http://www.wiaq.com/ftp/vk4_warmup.mp3) >> -- >> Stuart Longland (aka Redhatter, VK4MSL) >> >> I haven't lost my mind... >> ...it's backed up on a tape somewhere. >> >> >> ------------------------------------------------------------------------------ >> _______________________________________________ >> Freetel-codec2 mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >> > >
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