Hi SAB,
Welcome to the forum!
These look to be the same pools that Intex sells, same pumps too, just slight differences in them. So they're probably all the same manufacturer.
Those pumps are just plain downright noisy, period. Mine is about 15ft. from my back door and I don't really notice it, it runs 24/7 because they filter poorly.
Some days I really think it sounds noisier than other days.
I haven't been around the other Intex pumps, their bigger cartridge models or the sand filter units, so I can't comment as to how noisy they are, but I do know that this pump is much much louder than just about any pump I have ever been around, even a high flow, in-ground pool pump for a 50,000 gallon pool.
It just has a lot of vibration, a very rattling, almost tinny sound to it.
If it is so bad that you can't even have your windows open, because it's that annoying, I would say maybe it is starting to fail. Especially if it's much noisier than before.
All owners of these cartridge based Intex type pumps should plan on replacing them with something better, they seldom last very long and you're lucky to get a season or 2 out of them.
I am planning on replacing mine next season.
That aside, there are some things you can check, all of this should be done as regular or periodic maintenance anyway. It's a bit long, due to detail so as to be clear instructions, so please bear with me.
I would ask if you have it just sitting on the ground, dirt/grass, or if it is on a pad/stand of some sort, maybe wood, a deck? Wood can telescope and amplify the sound quite enormously, like a wooden drum.
One thing I would check, as I have had this happen, as well as others here, check for any sort of clog or blockage in the inlet, suction side of the pump. Check on the pump itself, take the hose off & look in the inlet screen/grid, then check where the suction hose attaches on the pool. There's a grate in there, just like on the pump, if you have a skimmer, you'll need to unhook the hose from the inside, in the water, then stick your finger in there at the wall fitting and check for hair, leaves, bits of junk, etc.... You may need to un-thread an adapter in there, or a plastic screen, like a drain screen in a sink and check behind that and in the outlet hole. Check all around that area as well as at the bottom of the skimmer you will find a grate too.
That's the general idea and some areas where things can get clogged up, thus making the pump work harder and sound noisier.
Also when your cartridge gets dirty, the pump gets louder since there's more resistance in water flow.
Shut off the pump, elevate it above the hose inlet & return on the pool so it doesn't spray everywhere, then open it up and take your cartridge out and spray it with a high pressure wand, not a pressure washer, this will damage it, just a brass nozzle or the like, go at it from a 45degree angle, doing one 1/2 middle to end and rotating all the way around, then flip it end over end and do the other end. Get it nice and white again, or as close as you can, spreading the pleats gently with your fingers to get junk in between, focusing on any trouble spots. Give it a once over to be sure, then place it back in there, making sure it seats at the bottom over the plastic hub, then tighten the lid down, don't wrench on it, just snug is good, it'll tighten up more on it's own.
I would recommend putting some Vaseline, or better yet, some clear silicone grease on the big black O-Ring, a nice bead all the way around it, top & bottom. Now, very important, bleed all the air out of the pump by opening the top bleeder valve while gently rocking the pump back and forth, still while the pump is off until it no longer spurts air, just water. Now close the bleed valve, then fire it back up.
Simply having air in there can also cause this. In the past I have found that bleeding it twice is necessary, do the initial bleed while off, then seal it up and turn it on, run it for say 5 seconds, then shut it off and bleed it again, seal it up, then fire it back up again.
However, once I fixed my clog, I was good on the double bleed, just having to do it once from there on out.
Never open the bleed valve or pump lid while it's running, you could fry your pump by letting in air.
Bleeding is always necessary any time you shut it off, or open it up or do any sort of maintenance to the pool. Pump should be off when the pool is occupied as it can suck air due to the water movement.
Water is needed to lubricate the pump and cool it, without it or with air in there, it's very noisy and can prematurely fail.
Lastly, if you have a skimmer, always make sure it's level and making a cascading vortex inside, as much as you can get it to do so. It has to be frequently adjusted as the water level changes. The height of the basket and it's housing, in relation to the floating ring determines how much vortex and suction you get for skimming action.
See my signature for some more tips on what I have done with my filter/pump.
Hope that helps.