From my personal experience any A/C with Rotary Compressor makes less noise while running. Try Panasonic / National A/C I am sure they make less noise. I have a national A/C and its pretty quite compared to LG, Frigidaire, Cool Line etc which have Piston Compressors.

But for Qatar summer most of us prefer Piston compressor as the cooling is pretty efficient compared to Rotary Compressors.

I hope the above helps. Good Luck