Check out the intake on this compressor. While my compressor is smaller, my intake setup is similar. My air filter housing is that automotive type and I've added the rubber hose coming off the filter like he's got. I don't have a second muffler off the end of the hose but I'm content with the noise levels I've achieved.
His setup is one you could add to most compressors so long as it has a screw on intake. Some of the 60 gallon compressors have a pump with an integrated filter in the head (see below)
https://www.aaroncake.net/projects/chcompressorupgrade9.jpg
Someone on this forum modified this type of head to accept traditional screw on intakes. I think it would be better to just get one with a screw on intake to begin with.
For reference here are a few other videos showing muffler ideas. I'm including these just to illustrate that a good intake muffler can make a big difference and might be sufficient to save you the effort of building a whole closet for the compressor
- this is the pump I have. I suspect my filter + rubber hose is quieter than his setup. Certainly the hose makes a big difference to me.
- This is the compressor my father has. We need to try a mod like this.