Index: UPDATING
===================================================================
--- UPDATING
+++ UPDATING
@@ -27,6 +27,10 @@
 	world, or to merely disable the most expensive debugging functionality
 	at runtime, run "ln -s 'abort:false,junk:false' /etc/malloc.conf".)
 
+20211103:
+	The default frequency of the bell has changed from 1491Hz to 800Hz.
+	See the keybell rc.conf variable and kbdcontrol(1) -b option to adjust.
+
 20211022:
 	The synchronous PPP kernel driver sppp(4) has been removed.
 	The cp(4) and ce(4) drivers are now always compiled with netgraph(4)
Index: sys/dev/vt/vt_core.c
===================================================================
--- sys/dev/vt/vt_core.c
+++ sys/dev/vt/vt_core.c
@@ -121,7 +121,7 @@
 
 /* Bell pitch/duration. */
 #define	VT_BELLDURATION	(SBT_1S / 20)
-#define	VT_BELLPITCH	(1193182 / 800) /* Approx 1491Hz */
+#define	VT_BELLPITCH	800
 
 #define	VT_UNIT(vw)	((vw)->vw_device->vd_unit * VT_MAXWINDOWS + \
 			(vw)->vw_number)