![setting up audio loopback in linux debian setting up audio loopback in linux debian](https://i.ytimg.com/vi/C9KaEESI7Nw/maxresdefault.jpg)
More useful to you is something like the arecord utility that allows you to eavesdrop on the alsa output stream and save it to several known formats. There is a background microphone hiss, which would be nice to clean up using a program rather a very simple redirection. You can set up a sound dummy sound card device that you can just rip the data out of the device. Yes, non-technical users may still need to run the shell script again if something goes south on the system, but that shouldn't happen more frequently than other troubles non-technical users can't solve.
![setting up audio loopback in linux debian setting up audio loopback in linux debian](https://linuxhint.com/wp-content/uploads/2020/01/11-13-300x236.png)
See this commit in the Linux kernel and its rationale: loopback current mtu of 16436 bytes allows no more than 3 MSS TCP segments per frame, or 48 Kbytes. To increase performances on local transfers, kernel developers bumped its mtu from 16 Kb to 64 Kb. Then make sure that script gets executed when the user logs in (because in their wisdom, the Pulseaudio devs don't support systemwide Pulseaudio by default). loopback isnt a physical interface, but still the tcp/ip stack runs a lot of operations on it. You can wrap the whole thing into a shell script (that also can unload existing module-loopbacks before adding a new one). Please keep in mind other posts on the website are Windows oriented.
![setting up audio loopback in linux debian setting up audio loopback in linux debian](https://i.stack.imgur.com/MFNi9.png)
Setting up audio loopback in linux debian how to#
This is a fairly technical process and the non-technical users I plan to provide this setup to may experience trouble if the system goes down for any reason. Its assumed you are familiar with the system and how to use the Terminal. See the module documentation for details. You probably need to specify which sources and sinks to use with module-loopback. I could not replicate this on another machine.