[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

Vincent Penquerc'h <vincent.penquerch at collabora.co.uk> changed:

           What    |Removed                     |Added
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                 CC|                            |vincent.penquerch at collabora
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--- Comment #1 from Vincent Penquerc'h <vincent.penquerch at collabora.co.uk> ---
I'm not sure I get the problem, but this would normally be the player's choice.
opusdec has an option to automatically scale audio based on the header's stated
gain (enabled by default). Opus can have a secondary gain in the comment
header, which is not used by opusdec, but may be used by a player as it appears
in a tag.

Now, it may be that the automatic scaling opusdec does is wrong, I'm not
familiar with the use of replay gains so I'm not sure how I'd tell.

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