Notification Panel SOUND

Hi, I am using WIN11 with XPlane and XPilot for Vatsim. Is there a way to regulate the sound of the notification panel? When the panel appears it makes a little sound which is actually a bit too loud for me… Any way to regulate this sound?
Thanks!!

OK I found a way, I deleted the file RadioMessage.wav fromUser/appData/Local/org.vatsim.xpilot/sounds…
Just in case some of you would also look for a solution to get rid of these sounds…