diff --git a/device-oriole.mk b/device-oriole.mk
index bd68efe..d408e1a 100644
--- a/device-oriole.mk
+++ b/device-oriole.mk
@@ -247,6 +247,10 @@ endif
 PRODUCT_PROPERTY_OVERRIDES += \
     ro.audio.spatializer_enabled=true
 
+# optimize spatializer effect
+PRODUCT_PROPERTY_OVERRIDES += \
+    audio.spatializer.effect.util_clamp_min=300
+
 PRODUCT_PACKAGES += \
 	libspatialaudio
 
diff --git a/device-raven.mk b/device-raven.mk
index 6932c95..21834ca 100644
--- a/device-raven.mk
+++ b/device-raven.mk
@@ -260,6 +260,10 @@ endif
 PRODUCT_PROPERTY_OVERRIDES += \
     ro.audio.spatializer_enabled=true
 
+# optimize spatializer effect
+PRODUCT_PROPERTY_OVERRIDES += \
+    audio.spatializer.effect.util_clamp_min=300
+
 PRODUCT_PACKAGES += \
 	libspatialaudio