Index: /trunk/include/VBox/err.h
===================================================================
--- /trunk/include/VBox/err.h	(revision 73686)
+++ /trunk/include/VBox/err.h	(revision 73687)
@@ -2796,4 +2796,9 @@
 /** Stream is not ready for requested operation.  */
 #define VERR_AUDIO_STREAM_NOT_READY                 (-6604)
+/** Stream could not be created.
+ *  This might due to missing host (backend) drivers or a host not having the
+ *  required hardware, or that the requested stream configuration
+ *  is not supported by the host backend. */
+#define VERR_AUDIO_STREAM_COULD_NOT_CREATE          (-6605)
 /** @} */