I'm looking for a software able to recognize an specific sound and then do some action.

I want to leave my notebook close by the house intercom so when I hear someone ringing it, a very specific and unique sound, it will send me an email at my office or something.

The main issue is that there's a lot of different noises there, but none would be as loud as the intercom for the specific place I've left the microphone.

Is there any software out there able to do this? Hopefully with a mac version.

I trust there's nothing closely related in this to speech or voice recognition technologies, and specially the softwares in there.