How to turn off keyboard bell

[Bob]

Hi there,

I'm having a difficult time turning off the keyboard bell.  I have tried 
kbdcontrol -b off and setting keybell="NO" in rc.conf, but this only shortens 
it down to a chirp.  If I set kbdcontrol -b visual, then the audible bell goes 
away completely and I get a flashing screen instead.  What am I missing here?  
How can I turn the bell off completely?  This is on a fresh install of 4.9.

-Bob