I was boat diving with a group of people and partnered with two people. I have a Cochran Gemini computer with Oceanic puck computer and one of my partners has a Atomic air inegrated and the other partner with a hollis puck. During the dive I hesrd a low pitched vibtrating noise. I thought it might have been a computer alarm. I looked at my computer and I saw no alarms nor were my partners computers showig any alarms. There wss close by a couple using u/w communication gearwith their full face masks. Could the noise I heard be those.