[LAU] Getting Rhythmbox to Appear in qjackctl

Hi Everyone, I'm back! How do I get Rhythmbox (GNOME application similar to iTunes) to appear in qjackctl? To recap: I'm trying to take the output of music playing from Rhythmbox and combine that with my microphone (either onboard laptop or bluetooth headset) to pipe both into the Jitsi Meet videoconference service[1]. Thanks again to everyone who has been helping me thus far. Based on the feedback I received, I'm going to try to solve my issue using JACK. Over the past few days, I have been doing more research, reading wiki pages and watching YouTube videos to become more familiar with JACK and the various tools. Thus far, I have: - installed qjackctl and its dependencies on Ubuntu 16.04 - updated /etc/security/limits.conf with: @audio - rtprio 95 @audio - memlock unlimited per these instructions[2] - added my userid to the audio group - installed pulseaudio-module-jack - installed gstreamer1.0-plugins.bad - I have NOT installed the low latency kernel I can now start the JACK server without any XRUNS after changing my Output and Input devices to hw:PCH but I can't get Rhythmbox to appear under "Readable Clients/Output Port" in the Connections window in qjackctl. I'm struggling to figure out how to set these GStreamer values[3] assuming that this is even the solution to my problem. Any pointers in the right direction would be appreciated. Thanks Samir [1] https://lists.linuxaudio.org/archives/linux-audio-user/2020-May/113035.html [2] https://jackaudio.org/faq/linux_rt_config.html [3] https://jackaudio.org/faq/gstreamer_via_jack.html