Limit notification frequency

Hi,
A question for you:
Sometimes I am chatting with a friend on Whatsapp, and whenever I get a message my phone beeps. Perfectly normal, but if its the "Ping-pong" style chat, my phone beeps a lot, and it is annoying for my roommates, and even for myself.
I don't want to put my phone on silence mode (I want to keep getting sounds notifications) and I don't want to mute this chat, because it takes time to do that, and I don't want to be un-notified for that long (1 hour).

What I do want is a global-setting (for all chats) that will define the minimum time interval between notifications. This way I can configure this setting to, say, 1 minute, and I know that no matter how many messages I get on a busy chat - my phone will still beep only once every one minute.

Does this feature exists? If not, any other solution/app for me?