[john70t]

Originally Posted by Seahawk

I have a Dewalt 6 gallon pc compressor...

Both these sites claim it's "quiet" at 75 dB.
https://www.bobvila.com/articles/best-quiet-air-compressors/
https://airpsi.com/low-noise/best-quiet-pancake-air-compressor/

56 dB would be much quieter..
No experience but this company is specialized in that. 120psi max doesn't go far.
https://www.amazon.com/California-Air-Tools-CAT-1P1060SP-Compressor/dp/B077CNLPBC/ref=psdc_551236_t3_B00WM1VPKE
CALIFORNIA AIR TOOLS CAT-1P1060SP GAL 56DB Air Compressor

https://www.thomasnet.com/articles/machinery-tools-supplies/best-quiet-air-compressors/ reviewed