It depends what you mean by "aural memory". A voice can do it immediately, differences between stereos, hmm. Less certain. A couple of years ago I was in a shop chatting to a pal as we wandered round. As we approached the counter the cashier, who I had seen but didn't recognise, asked me "Excuse me, is your name Stephen?" Yes it is, and immediately she spoke I knew her name, nickname and when I had last seen her. Primary school, about 35 years previously. I would never have recognised the 45 year old version from my memory of the little girl who was one of my pals when I was 10 years old, but I immediately knew her when she spoke, with absolute confidence.
Other memories are less reliable. Most of the cable threads go on for ever because some people believe that their ears and brains are analytical machines that can never imagine anything. "I've heard it therefore there is a physical difference". On the other side of the fence are people like me who believe that the response to music varies according to a variety of factors and that ears/brains are a really unreliable measure, especially on a one-off listen.