It seems the only way to get gstreamer to work the way you want is to override
every one of its settings with something you want. I was finally able to use
this pipeline:
audio/x-raw-int,rate=44100,channels=2 ! lame name=enc mode=0 vbr=4
vbr-quality=0 quality=0 vbr-min-bitrate=32 vbr-max-bitrate=320
lowpass-freq=25000 ath-lower=0 ! id3v2mux
to get insane-quality VBR files equivalent to
lame -m stereo -q 0 --vbr-new -V0 --add-id3v2 {infile} {outfile}
I used VLC's statistics feature as suggested above and found these files
to have the same stream bitrate and variability with files created by
command-line invocation of LAME using the above parameters.
gstreamer definitely needs some way of invoking LAME with only the
overrides provided in the pipeline instead of specifiying its own
(difficult to decypher) defaults.
--
Sound Juicer - MP3 quality doesn't change
https://bugs.launchpad.net/bugs/195483
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