This. I've read several posts saying they sung well, but until they scored I didn't hear that much from them. When they did sing, the North sang and (due to where I was standing) sounded louder. If you were nearer the away stand than the North, maybe they sounded louder to you.As said before, couldn't hear them from the North Stand (until they equalised), and where I was stood we sounded great. I think its all down to proximity.
It wasn't that long after their first that they got the lead, and from then I could really hear them, which suggests they weren't making that much noise before hand.