Index: /trunk/src/VBox/Main/src-client/DrvAudioVideoRec.cpp
===================================================================
--- /trunk/src/VBox/Main/src-client/DrvAudioVideoRec.cpp	(revision 74850)
+++ /trunk/src/VBox/Main/src-client/DrvAudioVideoRec.cpp	(revision 74851)
@@ -373,5 +373,5 @@
                         if (RT_SUCCESS(rc))
                         {
-                            rc = pSink->Con.WebM.pWebM->AddAudioTrack(uHz, cChannels, cBits,
+                            rc = pSink->Con.WebM.pWebM->AddAudioTrack(uHz, cChannels, cBytes * 8 /* Bits */,
                                                                       &pSink->Con.WebM.uTrack);
                             if (RT_SUCCESS(rc))