diff --git a/stream/__init__.py b/stream/__init__.py
index 0e6355e..5bd9dfa 100644
--- a/stream/__init__.py
+++ b/stream/__init__.py
@@ -168,7 +168,7 @@ class Plugin_OBJ():
             ffmpeg_command.extend([
                                     "-hwaccel", "cuda",
                                     "-c:v", "h264_nvenc",
-                                    "-c:a", "libvorbis",
+                                    "-c:a", "copy",
                                     "-f", "mp4"
                                     ])
         else: