the only sounds that give me a solid reaction are wet mouth sounds. everything else just feels like it doesn't quite work. the feeling is almost there, but the sense of satisfaction and relief doesn't complete.
its a very strange phenomenon to try to describe. but its unmistakeable and unprovoked by anything else.
For me, I've only really had the sensation once, triggered by the writing of a fountain pen and the soft and slightly rasping voice of a university supervisor. I'm very familiar with the "doesn't quite work" feeling, though. Anyway, it seems to be scratching kinds of noises for me.
its a very strange phenomenon to try to describe. but its unmistakeable and unprovoked by anything else.