If this option is enabled, Kiwi Syslog Server plays a beep when it receives any syslog message or SNMP trap. The beep will be heard even if a filter blocks the display or logging of the message. This option can be used for debugging to let you know that a message has been received.
If you are hearing a beep on every message that comes in and this option isn't checked then there is a problem logging the messages to disk. Check the Error log for details of the problem. (From the View menu). If a message can't be written to the specified log file, a beep will sound to notify you of the problem.