I live with my dad and stay up late at night working in my computer

Why is there not a sticky with this already?

To significantly reduce sound transmission you have to increase mass, or decouple surfaces.

Those foamy things only reduce something called RT60, how long it takes for sound to decay by 60 db. In other words it reduces echo.

Yes, plastering your walls with mattress foam will reduce sound levels outside the room, but not significantly. He's still going to hear you.

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>>1072587
It actually depends. It won't significantly reduce sound transmission but sometimes it's actually second-, third-, etc. order reflections bouncing off the walls and down/across the hall that cause the most discomfort.

so although open cell foam doesn't improve direct transmission much, it still will make the room, hallway, and house *apparently* more quiet and in a lot of cases that's enough. in other words, the direct sound won't be accompanied by a thick series of fluttering reflections working their way around the room and down the hallway.

it's a good starting point at least, and might just werk

>>1072584

What people dont realise is that this stuff is primarily to reduce echos

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>>1072614

>>1072584
Just smother the old man with it instead.

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>>1072621

>>1072584
How about some headphones, OP?

>>1072584
Why not get him something to listen to whatever light music quietly without commercials that interrupt it, or a white noise generator.
Just running a small air filter in your own room or his would at least cover over movement or typing (unless you have a heavy clicking keyboard). And act like you come from a first world nation and listen to music without disturbing everyone else. Use wireless headphones if there are others in the house that don't want to hear it. Don't be like the people that drive around with shitty "music" blasting out of their car and vibrating their license plate to wake everyone up at night, or use stereos blaring outside their house or apartment.

So either whitenoise type thing, or rug/soft shoes plus headphones. Hell of a lot easier and cheaper than trying to sound proof a whole room plus the duct work.

>>1072626
Because then he wouldn't be able to hear his dad knock on the door while he faps to cartoons.

>>1072587
>Why is there not a sticky with this already?
We need one for this and another for rust removal. Mother fuckers think we are their personal google machines.

>>1072626
/thread

>>1072667
I thought of that just after I posted, but then I figured if he can't figure out how to lock the door, fuck him. No disrespect intended, OP.

>>1072584
i have found that foamboard made to go under siding on houses works far better than that crap in your op pic

>>1072584
you can try this:
https://www.youtube.com/watch?v=pABvTWSxOes

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>>1072848
>mfw that fucking video

egg cartons are really esthetic and functional

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>>1072868

>>1072868
and a good way to accelerate a fire

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>>1072623
>>1072621
>>1072617

For some reason these made my day

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>>1072868

>>1072848
Why does he blink so fucking much

>>1073257
because he's full of shit

>>1073074
not >>1072868 but my father was a musician and had a place where he would store all the instruments. it was literally covered in hundred of egg cartons and you couldn't hear anything from outside, when they were playing.

he just used more than one layer of them iirc.