diff --git a/MediaBrowser.Model/Dlna/StreamBuilder.cs b/MediaBrowser.Model/Dlna/StreamBuilder.cs
index da1e6c3d3..6e9b943f7 100644
--- a/MediaBrowser.Model/Dlna/StreamBuilder.cs
+++ b/MediaBrowser.Model/Dlna/StreamBuilder.cs
@@ -1085,9 +1085,6 @@ namespace MediaBrowser.Model.Dlna
             bool? isInterlaced = videoStream?.IsInterlaced;
             string videoCodecTag = videoStream?.CodecTag;
             bool? isAvc = videoStream?.IsAVC;
-            // Audio
-            var defaultLanguage = audioStream?.Language ?? string.Empty;
-            var defaultMarked = audioStream?.IsDefault ?? false;
 
             TransportStreamTimestamp? timestamp = videoStream == null ? TransportStreamTimestamp.None : mediaSource.Timestamp;
             int? packetLength = videoStream?.PacketLength;
@@ -1119,7 +1116,7 @@ namespace MediaBrowser.Model.Dlna
                     .SelectMany(codecProfile => checkVideoConditions(codecProfile.Conditions)));
 
             // Check audiocandidates profile conditions
-            var audioStreamMatches = candidateAudioStreams.ToDictionary(s => s, audioStream => CheckVideoAudioStreamDirectPlay(options, mediaSource, container, audioStream, defaultLanguage, defaultMarked));
+            var audioStreamMatches = candidateAudioStreams.ToDictionary(s => s, audioStream => CheckVideoAudioStreamDirectPlay(options, mediaSource, container, audioStream));
 
             TranscodeReason subtitleProfileReasons = 0;
             if (subtitleStream != null)
@@ -1240,10 +1237,10 @@ namespace MediaBrowser.Model.Dlna
             return (Profile: null, PlayMethod: null, AudioStreamIndex: null, TranscodeReasons: failureReasons);
         }
 
-        private TranscodeReason CheckVideoAudioStreamDirectPlay(VideoOptions options, MediaSourceInfo mediaSource, string container, MediaStream audioStream, string language, bool isDefault)
+        private TranscodeReason CheckVideoAudioStreamDirectPlay(VideoOptions options, MediaSourceInfo mediaSource, string container, MediaStream audioStream)
         {
             var profile = options.Profile;
-            var audioFailureConditions = GetProfileConditionsForVideoAudio(profile.CodecProfiles, container, audioStream.Codec, audioStream.Channels, audioStream.BitRate, audioStream.SampleRate, audioStream.BitDepth, audioStream.Profile, !audioStream.IsDefault);
+            var audioFailureConditions = GetProfileConditionsForVideoAudio(profile.CodecProfiles, container, audioStream.Codec, audioStream.Channels, audioStream.BitRate, audioStream.SampleRate, audioStream.BitDepth, audioStream.Profile, mediaSource.IsSecondaryAudio(audioStream));
 
             var audioStreamFailureReasons = AggregateFailureConditions(mediaSource, profile, "VideoAudioCodecProfile", audioFailureConditions);
             if (audioStream?.IsExternal == true)
diff --git a/MediaBrowser.Model/Dto/MediaSourceInfo.cs b/MediaBrowser.Model/Dto/MediaSourceInfo.cs
index bb9848848..c348e83ae 100644
--- a/MediaBrowser.Model/Dto/MediaSourceInfo.cs
+++ b/MediaBrowser.Model/Dto/MediaSourceInfo.cs
@@ -230,19 +230,15 @@ namespace MediaBrowser.Model.Dto
 
         public bool? IsSecondaryAudio(MediaStream stream)
         {
-            // Look for the first audio track marked as default
-            foreach (var currentStream in MediaStreams)
+            if (stream.IsExternal)
             {
-                if (currentStream.Type == MediaStreamType.Audio && currentStream.IsDefault)
-                {
-                    return currentStream.Index != stream.Index;
-                }
+                return false;
             }
 
             // Look for the first audio track
             foreach (var currentStream in MediaStreams)
             {
-                if (currentStream.Type == MediaStreamType.Audio)
+                if (currentStream.Type == MediaStreamType.Audio && !currentStream.IsExternal)
                 {
                     return currentStream.Index != stream.Index;
                 }
diff --git a/tests/Jellyfin.Model.Tests/Dlna/StreamBuilderTests.cs b/tests/Jellyfin.Model.Tests/Dlna/StreamBuilderTests.cs
index 9baf6877d..c279b6b4b 100644
--- a/tests/Jellyfin.Model.Tests/Dlna/StreamBuilderTests.cs
+++ b/tests/Jellyfin.Model.Tests/Dlna/StreamBuilderTests.cs
@@ -21,8 +21,8 @@ namespace Jellyfin.Model.Tests
         [Theory]
         // Chrome
         [InlineData("Chrome", "mp4-h264-aac-vtt-2600k", PlayMethod.DirectPlay)] // #6450
-        [InlineData("Chrome", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectPlay)] // #6450
-        [InlineData("Chrome", "mp4-h264-ac3-aacDef-srt-2600k", PlayMethod.DirectPlay)] // #6450
+        [InlineData("Chrome", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
+        [InlineData("Chrome", "mp4-h264-ac3-aacDef-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
         [InlineData("Chrome", "mp4-h264-ac3-aacExt-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioIsExternal)] // #6450
         [InlineData("Chrome", "mp4-h264-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
         [InlineData("Chrome", "mp4-hevc-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported, "Transcode")]
@@ -32,8 +32,8 @@ namespace Jellyfin.Model.Tests
         [InlineData("Chrome", "mkv-vp9-vorbis-vtt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
         // Firefox
         [InlineData("Firefox", "mp4-h264-aac-vtt-2600k", PlayMethod.DirectPlay)] // #6450
-        [InlineData("Firefox", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectPlay)] // #6450
-        [InlineData("Firefox", "mp4-h264-ac3-aacDef-srt-2600k", PlayMethod.DirectPlay)] // #6450
+        [InlineData("Firefox", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
+        [InlineData("Firefox", "mp4-h264-ac3-aacDef-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
         [InlineData("Firefox", "mp4-h264-ac3-aacExt-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioIsExternal)] // #6450
         [InlineData("Firefox", "mp4-h264-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
         [InlineData("Firefox", "mp4-hevc-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported, "Transcode")]
@@ -59,11 +59,11 @@ namespace Jellyfin.Model.Tests
         [InlineData("AndroidPixel", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.ContainerBitrateExceedsLimit, "Transcode")]
         // Yatse
         [InlineData("Yatse", "mp4-h264-aac-srt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
-        [InlineData("Yatse", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
-        [InlineData("Yatse", "mp4-h264-ac3-aacDef-srt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
+        [InlineData("Yatse", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
+        [InlineData("Yatse", "mp4-h264-ac3-aacDef-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
         [InlineData("Yatse", "mp4-h264-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)]
         [InlineData("Yatse", "mp4-hevc-aac-srt-15200k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
-        [InlineData("Yatse", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
+        [InlineData("Yatse", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
         // RokuSSPlus
         [InlineData("RokuSSPlus", "mp4-h264-aac-srt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
         [InlineData("RokuSSPlus", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450 should be DirectPlay
@@ -83,8 +83,8 @@ namespace Jellyfin.Model.Tests
         [InlineData("JellyfinMediaPlayer", "mkv-vp9-vorbis-vtt-2600k", PlayMethod.DirectPlay)] // #6450
         // Chrome-NoHLS
         [InlineData("Chrome-NoHLS", "mp4-h264-aac-vtt-2600k", PlayMethod.DirectPlay)] // #6450
-        [InlineData("Chrome-NoHLS", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectPlay)] // #6450
-        [InlineData("Chrome-NoHLS", "mp4-h264-ac3-aacDef-srt-2600k", PlayMethod.DirectPlay)] // #6450
+        [InlineData("Chrome-NoHLS", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
+        [InlineData("Chrome-NoHLS", "mp4-h264-ac3-aacDef-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
         [InlineData("Chrome-NoHLS", "mp4-h264-ac3-aacExt-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioIsExternal)] // #6450
         [InlineData("Chrome-NoHLS", "mp4-h264-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
         [InlineData("Chrome-NoHLS", "mp4-hevc-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported, "Transcode", "http")]
@@ -273,15 +273,15 @@ namespace Jellyfin.Model.Tests
 
         [Theory]
         // Chrome
-        [InlineData("Chrome", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectPlay)] // #6450
+        [InlineData("Chrome", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
         [InlineData("Chrome", "mp4-h264-ac3-aacExt-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioIsExternal)] // #6450
         [InlineData("Chrome", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported, "Transcode")]
         // Firefox
-        [InlineData("Firefox", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectPlay)] // #6450
+        [InlineData("Firefox", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
         [InlineData("Firefox", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported, "Transcode")]
         // Yatse
-        [InlineData("Yatse", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
-        [InlineData("Yatse", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
+        [InlineData("Yatse", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
+        [InlineData("Yatse", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
         // RokuSSPlus
         [InlineData("RokuSSPlus", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
         [InlineData("RokuSSPlus", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450