I have a few CDs lying around that I'd like to rip and encode in MP3 format using Rhythmbox. After installing the ubuntu-restricted-extras package, one of the options that shows up in Rhythmbox's preferences under "preferred format" is "CD Quality MP3," but from the encoder options it appears that it uses a constant bitrate.
I'd like to set up an Audio Profile to encode at a variable bitrate (VBR) at a reasonably high quality. What options do I need to use under "gstreamer pipeline?" Or alternatively, is there a more discoverable way to enter encoding options than entering command-line options into Rhythmbox?