diff --git a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
index 996b1b5c1e..33256e4bf2 100644
--- a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
+++ b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
@@ -2675,9 +2675,10 @@ namespace MediaBrowser.Controller.MediaEncoding
             state.MediaSource = mediaSource;
 
             var request = state.BaseRequest;
-            if (!string.IsNullOrWhiteSpace(request.AudioCodec))
+            var supportedAudioCodecs = state.SupportedAudioCodecs;
+            if (request != null && supportedAudioCodecs != null && supportedAudioCodecs.Length > 0)
             {
-                var supportedAudioCodecsList = request.AudioCodec.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries).ToList();
+                var supportedAudioCodecsList = supportedAudioCodecs.ToList();
 
                 ShiftAudioCodecsIfNeeded(supportedAudioCodecsList, state.AudioStream);
 
diff --git a/MediaBrowser.Controller/MediaEncoding/EncodingJobInfo.cs b/MediaBrowser.Controller/MediaEncoding/EncodingJobInfo.cs
index 6cd0c70d2f..6e9362cd14 100644
--- a/MediaBrowser.Controller/MediaEncoding/EncodingJobInfo.cs
+++ b/MediaBrowser.Controller/MediaEncoding/EncodingJobInfo.cs
@@ -287,6 +287,11 @@ namespace MediaBrowser.Controller.MediaEncoding
                 return BaseRequest.AudioChannels;
             }
 
+            if (BaseRequest.TranscodingMaxAudioChannels.HasValue)
+            {
+                return BaseRequest.TranscodingMaxAudioChannels;
+            }
+
             if (!string.IsNullOrEmpty(codec))
             {
                 var value = BaseRequest.GetOption(codec, "audiochannels");