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Sound modem and alsa



I'm getting errors trying to transmit using soundmodem and alsa.
Does anyone have this working?
Or do any of the DSP projects (gnuradio, ...) have a 1200/9600 modem
this works with a sound card?

Using debian testing: 
(with nothing tied to the sound card on this machine)

soundmodem
ALSA: Using sample rate 14302, sample format 2, significant bits 16,
buffer size 7151, period size 215 
ALSA: Using sample rate 14302, sample
format 2, significant bits 16, buffer size 7151, period size 215 
Tx: fm N2POR-12 to WA2UMX-0 SABM+

sm[14994]: snd_pcm_start: Broken pipe
sm[14994]: snd_pcm_start: File descriptor in bad state


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