waterfall-shower sound detector

I've a project in my mind and I need some clarification in order to know if is possible or not develop it using Arduino. I'm looking for the very first consultation/help...

Part of the project consist in an Arduino board which has to detect when a specific sound is emitted in a pretty quiete and small room.
The sound in question is very similar to a small waterfall or the sound of a shower. (basically i'm referring to the sound of dropping water)

When the sound is detected, then the Arduino 'll start a countdown (I'v no problem at all in developping this part :slight_smile: )

Regarding the "sound detector", do you have any advice regarding which sensor to use?
Any kind of link, video, tutorial and so is more than wellcome :grinning:

thanks

N

Showers and waterfalls produce something very close to white noise...the sound covers a wide range of frequencies.

So while it will be easy to discover that the total sound level in the room has increased, using a sound level detector like a KY-037, narrowing the cause down to that specific type of sound may be tricky. You could check that the sound lasts a while to exclude sharp, short sounds like claps and footsteps but I'm not sure what else you can easily do. I guess it depends what other sounds there may be in the room.

Steve

I need some clarification in order to know if is possible or not develop it using Arduino.

It is not possible, or at the very least it is very advanced.

slipstick:
Showers and waterfalls produce something very close to white noise...the sound covers a wide range of frequencies.

No, pink or red noise is much closer - ie bass heavy. A high pressure gas leak is closer to white noise.

Recognizing noise is possibly doable by spotting a fairly constant average spectrum above a threshold level.