HAI keypad beep to chirp?

Noticed recently that my one Omni HAI Keypad has gone from a beep to a chirp (like a bird chirp).  I have reset the panel and the key and it still chirps.
 
Anyone see / hear this with a Omni Keypad?

i don't know if this is related, but I also noticed a tonal change in the sound made by the OmniTouch 7's - the sound went from a sharp beep to a duller click. Perhaps an artifact of one of the FW updates (have you recently updated?)

Thank you JCDavis.
 
It seemed to come only to one keypad after an alarm trigger way way after the last firmware update. 
 
I do get a dull squawk on the OmniTouch 5.7's and typically just reset them via a press of the reset button.  No issues with the Omnitouch 5.7e's.
 
Over the years only keypad issue has been those blue LEDs going bad.  Only once with only one keypad which was still under warranty and replaced by HAI way back.