On Mar 25 15:24:03, byronklipp...@ml1.net wrote: > Is there a way to generate DTMF tones using the tools in base? > > I am trying to open a "live" audio path over IP from one node to > another. The audio path is fed into a controlling device which > interfaces with a VHF radio. In order to key-up the radio, the > controlling device needs to see a DTMF code (1 to key, 0 to unkey). Any > audio sent to the device between keying and unkeying, is sent to the > radio and over air. > > I'm guessing an ssh-tunnel will server as the "path", just not sure > which framework can be used to record and play audio,
See aucat(1) for general audio work. It also works nicely over ssh (see http://marc.info/?l=openbsd-misc&m=136500465604928&w=3 for inspiration). > let alone generate DTMF. I would use the SoX package for this ... On Mar 25 17:06:50, fritz.k...@gmail.com wrote: > play -n synth 0.5 sine 697 sine 1209 channels 1 > play -n synth 0.5 sine 941 sine 1336 channels 1 ... but only slightly differently: play -c 1 -n synth 0.5 sine 697 sine 1209 gain -6 play -c 1 -n synth 0.5 sine 941 sine 1336 gain -6
