Yes, i was thinking some sort of microphone input, a low-pass filter (active most likely) to eliminate unwanted signal,...feed that to a comparator that you have configured for a minimum level (you dont want a quiet signal trigering it).
You then will take the compatator ouput to a one-shot circuit (555 timer?)(this will allow a long comparator output signal to flash the light, not keep it lit), then use that for the trigger to the strobe circuit. This is where i have no knowledge,...a strobe is going to need a high voltage setup i think.
but this is all off the top of my head