There is frost on the inlet pipe of the compressor
You're overcharged. The noise might liquid slugging in the compressor (not good).
Did a compressor change out a few months ago. Weighed in the charge with a digital scale. Was running at a 5" vacuum but was cooling fine, good frost pattern. Then I realized I keep my shop at 60 degrees. Bumped up the heat to 68, emptied the liquid from the high side hose and got it to the 0psi lowside I like to see. Maybe your hot weather is why your pressures are so high.
Sorry about the slight thread hijack.