[Bug 753275] Opus: playback gain always relative to EBU R128 level (-23db LUFS), must be played 5db louder to match ReplayGain level (-18db LUFS) when using ReplayGain

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=753275

--- Comment #24 from Nikolaus Waxweiler <madigens at gmail.com> ---
Well, uh, you're not losing anything by using a good enough statistical match
for a dB-difference? All you can really do on your end here is, I think,
settling on one reference volume level. And maybe offer a shiny new tool that
scans your music and video collection and applies the correct (R128) algorithm
so I don't have to use Foobar2000 anymore on my Fedora box :)

Also, what other tags should Foobar2000 write to, given that tag support is
spotty as is (which is why the Opus people firm-coded it into the spec) and
nobody wanted to invent a new tag for all supported container formats? I think
mixing them is okay, since, sadly, only technical people seem to know about
volume normalization and most RG tags are probably homegrown anyway.

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