If combines didn't buzz, beep and squawk, they'd probably all be trashed. Many of the alarms are operator induced (via poor maintenance).
My LEXION 585R (and previous 485R) doesn't beep anymore than my 9750 did. The sounds are different but, nothing in a LEXION is as annoying as the harsh buzzer of a Deere combine. I can "OK" the LEXION alarms with the push of a button and they go away. I also calibrate my speed sensors daily (because it is too easy not to, and takes less than 3 seconds to do) to keep the alarms to a minimum, which you really need to do between each header type change, belt tensionings and chopping to windrowing (vice versa).