diff --git a/dlls/winecoreaudio.drv/mmdevdrv.c b/dlls/winecoreaudio.drv/mmdevdrv.c
index 81816ca52c9..626add1d6dd 100644
--- a/dlls/winecoreaudio.drv/mmdevdrv.c
+++ b/dlls/winecoreaudio.drv/mmdevdrv.c
@@ -61,8 +61,8 @@ WINE_DEFAULT_DEBUG_CHANNEL(coreaudio);
 
 #define NULL_PTR_ERR MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, RPC_X_NULL_REF_POINTER)
 
-static const REFERENCE_TIME DefaultPeriod = 200000;
-static const REFERENCE_TIME MinimumPeriod = 100000;
+static const REFERENCE_TIME DefaultPeriod = 100000;
+static const REFERENCE_TIME MinimumPeriod = 50000;
 
 typedef struct _QueuedBufInfo {
     Float64 start_sampletime;
diff --git a/dlls/wineoss.drv/mmdevdrv.c b/dlls/wineoss.drv/mmdevdrv.c
index 1e0e1160c7c..922cbb0413b 100644
--- a/dlls/wineoss.drv/mmdevdrv.c
+++ b/dlls/wineoss.drv/mmdevdrv.c
@@ -57,8 +57,8 @@ WINE_DEFAULT_DEBUG_CHANNEL(oss);
 
 #define NULL_PTR_ERR MAKE_HRESULT(SEVERITY_ERROR, FACILITY_WIN32, RPC_X_NULL_REF_POINTER)
 
-static const REFERENCE_TIME DefaultPeriod = 200000;
-static const REFERENCE_TIME MinimumPeriod = 100000;
+static const REFERENCE_TIME DefaultPeriod = 100000;
+static const REFERENCE_TIME MinimumPeriod = 50000;
 
 struct ACImpl;
 typedef struct ACImpl ACImpl;