[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
----------------------------------------------------------------------------
 Attachment #351420|0                           |1
        is obsolete|                            |

--- Comment #35 from Vincent Penquerc'h <vincent.penquerch at collabora.co.uk> ---
Created attachment 351529
  --> https://bugzilla.gnome.org/attachment.cgi?id=351529&action=edit
rgvolume: add R128_TRACK_GAIN

I found the algorithm in ITU-R BS.1770-2. The resulting loudness of the Opus
sample is noticeably lower than that of the Vorbis sample when using it,
however.

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