This may be the completely wrong part of the forum for this kind of question, but since this is a 'phenomena' that I have exclusively noticed on classical music I thought this may be the place. Mods can move if I'm wrong.
Anyway, on a wide range of records I have noticed a faint sound in the background that I'm not sure of what it is. It is not present on all headphones, but can be heard very well on my HD800S. It's a sound that resembles a
dry leaf rustling in the wind or a maraca shake (and I'm fairly [?!] positive that it's not an actual instrument).
I'm currently listening to 'The Chopin Project' by Alice Sara Ott & Ólafur Arnalds, and it's present in every piece. Can someone shed some kind of light on this, or do I just imagine things?
Thanks.