As far as listening to music and determining there is something wrong with it because you noticed a 5ms difference, I find that hard to believe. However, when

As far as listening to music and determining there is something wrong with it because you noticed a 5ms difference, I find that hard to believe. However, when given samples of audio with no delay and a 5ms delay. I, with no special talent and no musical training, was able to start accurately identifying the delayed audio almost every time after a few minutes of practice. The difference isn't imperceptible when it comes to a single noise when we are specifically told to look for it, but I would bet that its imperceptible when it comes to just randomly listening to music.