Index: /trunk/src/VBox/Main/src-client/VideoRec.cpp
===================================================================
--- /trunk/src/VBox/Main/src-client/VideoRec.cpp	(revision 68425)
+++ /trunk/src/VBox/Main/src-client/VideoRec.cpp	(revision 68426)
@@ -769,5 +769,9 @@
     bool fHasVideoTrack = true;
 #ifdef VBOX_WITH_AUDIO_VIDEOREC
-    bool fHasAudioTrack = true;
+    bool     fHasAudioTrack = true;
+    /* By default we use 48kHz, 16-bit, stereo for the audio track. */
+    uint16_t uAudioHz       = 48000;
+    uint8_t  uAudioBits     = 16;
+    uint8_t  uAudioChannels = 2;
 #endif
 
@@ -819,4 +823,25 @@
 #endif
         }
+        else if (key.compare("ac_profile", Utf8Str::CaseInsensitive) == 0)
+        {
+#ifdef VBOX_WITH_AUDIO_VIDEOREC
+            if (value.compare("low", Utf8Str::CaseInsensitive) == 0)
+            {
+                uAudioHz       = 8000;
+                uAudioBits     = 16;
+                uAudioChannels = 1;
+            }
+            else if (value.compare("med" /* "med[ium]" */, Utf8Str::CaseInsensitive) == 0)
+            {
+                uAudioHz       = 22050;
+                uAudioBits     = 16;
+                uAudioChannels = 2;
+            }
+            else if (value.compare("high", Utf8Str::CaseInsensitive) == 0)
+            {
+                /* Stay with the default set above. */
+            }
+#endif
+        }
         else
             LogRel(("VideoRec: Unknown option '%s' (value '%s'), skipping\n", key.c_str(), value.c_str()));
@@ -856,5 +881,5 @@
     if (fHasAudioTrack)
     {
-        rc = pStream->pEBML->AddAudioTrack(48000, 2, 16, &pStream->uTrackAudio); /** @todo Make this configurable. */
+        rc = pStream->pEBML->AddAudioTrack(uAudioHz, uAudioChannels, uAudioBits, &pStream->uTrackAudio);
         if (RT_FAILURE(rc))
         {
@@ -863,5 +888,6 @@
         }
 
-        LogRel(("VideoRec: Recording audio enabled\n"));
+        LogRel(("VideoRec: Recording audio in %RU16Hz, %RU8 bit, %RU8 %s\n",
+                uAudioHz, uAudioBits, uAudioChannels, uAudioChannels == 1 ? "channel" : "channels"));
     }
 #endif