diff -r 5dc02b23752f -r 3e2da88830cd src/multimedia/audio/qaudioinput_win32_p.cpp
--- a/src/multimedia/audio/qaudioinput_win32_p.cpp	Tue Jul 06 15:10:48 2010 +0300
+++ b/src/multimedia/audio/qaudioinput_win32_p.cpp	Wed Aug 18 10:37:55 2010 +0300
@@ -148,7 +148,7 @@
 
     for(int i = 0; i < count; i++) {
         waveInUnprepareHeader(hWaveIn,blocks, sizeof(WAVEHDR));
-        blocks+=sizeof(WAVEHDR);
+        blocks++;
     }
     HeapFree(GetProcessHeap(), 0, blockArray);
 }