There is a type of meditation called Open Awareness. Instead of focusing on breathing, you focus on everything. Every sound, sensation, sight. For example, the bird chirping, another bird "screaming", a jet plane going over, a neighbors indistinct talking outside, my breathing, the tingling in my leg, a small pain in my stomach that just started, everything. For those not familiar with meditation, the one thing you do not meditate on is your thoughts.
I normally do regular meditation, but the past 2 days I have done Open Awareness in one 30 minute session at the start of the day. Today (about 30 minutes ago and 30 minutes after meditation) I walked to the local gas station to get some red bull and on may way there was this construction going on with loud hammering. Normally the hammering goes straight into my head in an almost painful way, but today it was nothing. I simply heard the hammering, I heard the birds, the cars, and nothing bothered me at all. I just got back from the store and wanted to post this so maybe others can try it and hopefully will work for them.