Internal and external noise both affect me. The noises that affect me most are when music is playing in the background and when I am so starving I can't even listen. The strategies that I can use to overcome these are by draining out the music and eating when I am hungry.
Music also affects me sometimes. If it is a song I know I feel forced to sing.
I can definitely relate to the internal noise of hunger and the external noise of music. That is probably why when my Tourettes bother me, I like going to a quieter, less populated space and it will slowly diminish.