Fix excessive CPU usage

src/intf/audio/win32/aud_dsound3.cpp

@@ -94,7 +94,7 @@ static int DxSoundCheck()
 	}
 
 	if (nDSoundNextSeg == nPlaySeg) {
-		//Sleep(2);													// Don't need to do anything for a bit
+		Sleep(2);													// Don't need to do anything for a bit
 		//bRunFrame = true;
 		return 0;
 	}

src/intf/audio/win32/aud_xaudio2.cpp

@@ -109,7 +109,7 @@ static int XAudio2Check()
 				WaitForSingleObject(voiceContext.hBufferEndEvent, INFINITE);
 			} else {
 				// drop current audio frame
-				//Sleep(2);
+				Sleep(2);
 				return 0;
 			}
 		}