It’s not studio talk, but the album version of Ash’s ‘Jack names the planets’ has some excellent mutterings by a drunk dutch bloke who reckons his town Niuew-Vennup is the centre of the universe and hence why the plant should be named Nieuw-Vennup……
http://www.ash-official.com/article/tim-on-writing-jack-names-the-planets/
There’s a bit of studio talk on the Wedding Present ‘George Best’ album, before ‘Something and Nothing’ – seems one of the engineers asks David Gedge if it sounds nice and he responds that that’s where they’re being paid for, to make sure it sounds nice!
But my favourite definitely isn’t studio talk – on St Etienne’s So Tough before ‘You’re in a bad way’ and is a great sample from Billy Liar. Which I repeat every time I take my daughters into London. Including using anything to hand as a echo chamber
[video]https://www.youtube.com/watch?v=Qt50qNdv-r4[/video]