FASTLOOP for a high speed version of the Linux snd-aloop virtual audio devices:

https://www.sdrutah.org/info/high_rate_loopback_websdr.html

 

For FASTLOOP create a file “/etc/modprobe.d/fastloop.conf” containing:

options snd-fastloop index=16,17 id=fl1,fl2 enable=1,1 pcm_streams=8,8

 

 

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