diff --git a/Jellyfin.Api/Controllers/UniversalAudioController.cs b/Jellyfin.Api/Controllers/UniversalAudioController.cs
index df20a92b3d..a219a74cf8 100644
--- a/Jellyfin.Api/Controllers/UniversalAudioController.cs
+++ b/Jellyfin.Api/Controllers/UniversalAudioController.cs
@@ -88,16 +88,14 @@ namespace Jellyfin.Api.Controllers
         /// <response code="302">Redirected to remote audio stream.</response>
         /// <returns>A <see cref="Task"/> containing the audio file.</returns>
         [HttpGet("Audio/{itemId}/universal")]
-        [HttpGet("Audio/{itemId}/universal.{container}", Name = "GetUniversalAudioStream_2")]
         [HttpHead("Audio/{itemId}/universal", Name = "HeadUniversalAudioStream")]
-        [HttpHead("Audio/{itemId}/universal.{container}", Name = "HeadUniversalAudioStream_2")]
         [Authorize(Policy = Policies.DefaultAuthorization)]
         [ProducesResponseType(StatusCodes.Status200OK)]
         [ProducesResponseType(StatusCodes.Status302Found)]
         [ProducesAudioFile]
         public async Task<ActionResult> GetUniversalAudioStream(
             [FromRoute, Required] Guid itemId,
-            [FromRoute] string? container,
+            [FromQuery] string? container,
             [FromQuery] string? mediaSourceId,
             [FromQuery] string? deviceId,
             [FromQuery] Guid? userId,
@@ -276,7 +274,7 @@ namespace Jellyfin.Api.Controllers
 
             foreach (var cont in containers)
             {
-                var parts = RequestHelpers.Split(cont, ',', true);
+                var parts = RequestHelpers.Split(cont, '|', true);
 
                 var audioCodecs = parts.Length == 1 ? null : string.Join(",", parts.Skip(1).ToArray());
 
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");