1 files changed, 18 insertions, 0 deletions
diff --git a/MediaBrowser.Providers/MediaInfo/AudioFileProber.cs b/MediaBrowser.Providers/MediaInfo/AudioFileProber.cs
index b70cba5b3b..81d4b640a3 100644
--- a/MediaBrowser.Providers/MediaInfo/AudioFileProber.cs
+++ b/MediaBrowser.Providers/MediaInfo/AudioFileProber.cs
@@ -468,6 +468,24 @@ namespace MediaBrowser.Providers.MediaInfo
                 }
             }
 
+            if (audio.AlbumEntity is not null && !audio.AlbumEntity.NormalizationGain.HasValue)
+            {
+                TryGetSanitizedAdditionalFields(track, "REPLAYGAIN_ALBUM_GAIN", out var trackAlbumGainTag);
+
+                if (trackAlbumGainTag is not null)
+                {
+                    if (trackAlbumGainTag.EndsWith("db", StringComparison.OrdinalIgnoreCase))
+                    {
+                        trackAlbumGainTag = trackAlbumGainTag[..^2].Trim();
+                    }
+
+                    if (float.TryParse(trackAlbumGainTag, NumberStyles.Float, CultureInfo.InvariantCulture, out var value) && float.IsFinite(value))
+                    {
+                        audio.AlbumEntity.NormalizationGain = value;
+                    }
+                }
+            }
+
             if (options.ReplaceAllMetadata || !audio.TryGetProviderId(MetadataProvider.MusicBrainzArtist, out _))
             {
                 if ((TryGetSanitizedAdditionalFields(track, "MUSICBRAINZ_ARTISTID", out var musicBrainzArtistTag)