Please forgive me if this has already been covered here.
I need an electronic "beep detector". When my "beep, beep, beep, beep" alarm is going off, I want to have an electronic device that interprets that and sends an electronic signal letting me know (perhaps to turn on a flashing light). The tone and spacing of the beeps may vary and there may be some background noise. Does such an electronic device exist? If not, would it be easy to create using existing technology?
Thanks,
Russ