diff --git a/Rock64.md b/Rock64.md
index e16f847..5310249 100644
--- a/Rock64.md
+++ b/Rock64.md
@@ -3,3 +3,10 @@ UART is accessible on the Pi-2 bus (same pins as on a Raspberry Pi), using a bau
 
 ## MAC Address
 The MAC address for the system is configurable in /boot/boot.txt.  Use spaces instead of colons between each octet.  After making changes, run the *mkscr* script from within /boot.
+
+## Audio
+Audio can be enabled by installing `dtc` and issuing
+```
+fdtput -t s /boot/dtbs/rockchip/rk3328-rock64.dtb /analog-sound status okay
+reboot
+```