ISPL meter?

[stuee]

Hi. I think that's what its called in the title. I want to make something that I can put in a room when the noise is too loud to my setting it turns on a rotating light (12v) if its not turned down after 3 mins ish then it kills the 240v power to the amp or can stop the sound to speakers. Perhaps some 12v car relays always on? I can get them for 50c each

Any ideas for a schematic for this?
Thanks again all

 

[Inquisitive]

Why not save the money and just turn it down. Good clean sound does not have to be excessively loud to be appreciated.

 

[stuee]

because i have friends who come over when im at work and my neighbors complain and im over telling them. Im guessing ill work it out myself

 

[Inquisitive]

True friends would not do that. I believe they are people looking for a place to party. If you are renting, these people will get you evicted. If not a visit by your local law enforcement with fines to match.

We have all been there. Like to party. But there is a time and place for everything.

Simply put, if you can't be there to keep it to a dull roar, they need to go someplace else. No disrespect implied here. Just offering advice.

A device added to a stereo to warn of impending power shutdown can be easily bypassed. Then the party continues. Imho