I don't know about you guys, but my hearing is not as good as it used to be. When I have H2HH up and running on my 2nd monitor, while I'm doing something else on my main monitor, I don't always hear the alert beeps that H2HH makes. To better alert me to these signals I just drop these two sound files in place of the current ones. To add to your h2hh, just delete the old files and unzip these in their place.