Hello AskUbuntu community!
I've looked up a lot of Q&A here about loopbacks and sinks, but I'm new to Ubuntu and I can't seem to get things working the way that I need them to. It seems like I really need this explained to me like I'm a 5 year old who doesn't know linux terminology.
Rather than explain my guesses and perhaps confuse people or suggest an inferior solution, I'll describe my goal and what I know:
- Create a virtual sink/source "line" that I can select as a capture/input/recording source in a program like Audacity/Teamspeak/Skype/OBS
- Send my Blue Yeti USB microphone input to that line
- Send my VLC media player audio to that line
- Still be able to hear the music from VLC, so that I can adjust the volume per song
- Use a pactl command or something that I'm not familiar with to pipe my VLC output into the same input stream as my Blue Yeti USB mic (perhaps this is possible?), or add the input of my Blue Yeti USB microphone to a combined output stream with VLC
- Pipe the combined stream (whether input or output) into Audacity/Teamspeak/Skype/OBS as an input/recording/capture source
Stuff I've seen on AskUbuntu:
1) Multiple loopbacks and sinks
pactl load-module module-null-sink sink_name=Virtual1 pactl load-module module-null-sink sink_name=Virtual2 pactl load-module module-loopback sink=Virtual1 pactl load-module module-loopback sink=Virtual1 pactl load-module module-loopback sink=Virtual2
- Yes, and it is partially functional.
- My CPU load goes to 90-100% on all processor cores, and I basically can't do anything on my computer.
- Also, the audio becomes robotic/choppy and skips periods of seconds.
- Moreover, when one song ends, all of my settings for the piping from loopbacks to sinks gets reset in pavucontrol.
- Maybe something can be done with latency_msec or other settings (maybe buffers or frequency or something?) to reduce CPU load? When I was doing something with jackd one time by using the dbus plugin to take audio from pulseaudio, I was told to increase the frames/period setting to 512 to fix robotic/choppy audio, and that worked. The latency was 24msec as a result, but it sounded fine to me and wasn't a problem. It also didn't cause a high CPU load / slow my computer down.
- Maybe there's also a way to turn what I want to do into a command thing for /etc/pulse/default.pa so that my settings won't be reset when a song ends.
- I don't need for the VLC sound or my mic to be sent to the recording/chat program right when I talk. A delay is fine, if that reduces CPU load.
2) Loopback between a source and a sink
pactl load-module module-loopback source=<name_or_index> sink=<name_or_index>
- No. I don't really understand it.
- Maybe this could be used somehow to cut out some middle-men and reduce CPU load.
Thank you for any help you can provide!