diff --git a/target/product/base_system.mk b/target/product/base_system.mk
index 3522eba2b5..04a5ba2357 100644
--- a/target/product/base_system.mk
+++ b/target/product/base_system.mk
@@ -317,6 +317,11 @@ ifeq ($(EMMA_INSTRUMENT),true)
   endif # EMMA_INSTRUMENT_STATIC
 endif # EMMA_INSTRUMENT
 
+# For testing purposes
+ifeq ($(FORCE_AUDIO_SILENT), true)
+    PRODUCT_SYSTEM_PROPERTIES += ro.audio.silent=1
+endif
+
 # Host tools to install
 PRODUCT_HOST_PACKAGES += \
     BugReport \