What is typically louder? Frack pumps/fracking or compressor stations?

I posted a while back about Beech resources considering putting in a compressor station about 4800' from our new home on the next ridge over (I'm at 1000', then a valley, then the compressor would be at about 1010' directly south of us). Beech bought 14 acres from the landowner, but the local rep said they did so with the ability to allow them future development if needed, but they have no plans for a compressor station as of now. With that being said, the well site (which is about 4400' from us...again on the same ridge) is being fracked right now. It's quite loud. Obviously there's a lot of frac pumps running on the pad unabated, and using a sound meter app on my phone (not sure how accurate it really is), it's showing about 50db in my backyard (again...I'm ~4400' away). Inside, it's about 25.

I was hoping due to my distance, the sound would attenuate more than it has. If 50db is the accepted norm for compressors at 300', I'm curious what that sounds like at 4400-4800'. If it's anything like the fracking process, I'm not going to want to live here much longer.

So what is typically considered louder? Fracking/continuous running of the frac pumps or compressor stations? Would love some insight from those within the industry.

Thanks!