I have an very old application, from repository - it's
soundmodem (for amateur AX.25 radio packets).
I'm using Linux Mint 17 with default sound driver, it's PulseAudio. Options in application configuration:
- soundcard: /dev/dsp, /dev/dsp1, ...
- alsa: hw:0,0, plughw:0,0, hw:1,0, ...
And checkbox for Half duplex and Capture channel (mono / right / left).
I can't make this application works together with Chrome or other application that plays sound to mixer. I tried to run this with
padsp (on stduser or root) and set device to
/dev/dsp (what works in other apps), but i got error:
sm: audio: starting "/dev/dsp" sm: audio: forcing half duplex mode sm: audio: Error, cannot set nonblocking mode
Any ideas how to run this?
EDIT: ALSA options: