Index: /trunk/src/VBox/Devices/Audio/DrvAudio.cpp
===================================================================
--- /trunk/src/VBox/Devices/Audio/DrvAudio.cpp	(revision 73659)
+++ /trunk/src/VBox/Devices/Audio/DrvAudio.cpp	(revision 73660)
@@ -2933,5 +2933,5 @@
         pCfgReq->Backend.cfPeriod = DrvAudioHlpMilliToFrames(pDrvCfg->uPeriodSizeMs, &pCfgReq->Props);
     else /* Set default period size. */
-        pCfgReq->Backend.cfPeriod = DrvAudioHlpMilliToFrames(200 /* ms */, &pCfgReq->Props);
+        pCfgReq->Backend.cfPeriod = DrvAudioHlpMilliToFrames(20 /* ms */, &pCfgReq->Props);
 
     LogRel2(("Audio: Using %s period size (%RU64ms, %RU32 frames) for stream '%s'\n",
@@ -2945,5 +2945,5 @@
         pCfgReq->Backend.cfBufferSize = DrvAudioHlpMilliToFrames(pDrvCfg->uBufferSizeMs, &pCfgReq->Props);
     else /* Set default buffer size. */
-        pCfgReq->Backend.cfBufferSize = DrvAudioHlpMilliToFrames(400 /* ms */, &pCfgReq->Props);
+        pCfgReq->Backend.cfBufferSize = DrvAudioHlpMilliToFrames(100 /* ms */, &pCfgReq->Props);
 
     LogRel2(("Audio: Using %s buffer size (%RU64ms, %RU32 frames) for stream '%s'\n",