This is a very obscure question, but I've noticed a few songs from the mid-century that have a really strange voice effect:
I think he's a great singer. I love his smoothie songs because they are so musically good. I actually remember watching his show in the 60s when I was a little boy. I never really understood it, but hey, it was television. I seem to have a memory of a bear being on the show and not being at all freaked out by it !The Andy Williams
I was reading an interesting interview with Paul McCartney the other day from an 80s article on bass players and when asked about how he compared the sounds he was getting during the 60s with the current day, he said that he preferred the old effects and methods because they weren't pristine but "more fuck-uppable" as he put it. That has pretty much always been my approach to recording. Rather than search the internet for the sampled sound of a cat, I'd rather go find a real cat and try and get a recording of one myself. I wanted a cat miaowing for years and whenever I heard them, I didn't have my Zoom H1. But one day last year, outside my flat, a cat was miaowing in terror because of a bigger cat. Before I went to help the cat, I got a load of great miaows. Then just as I got outside to help the cat, it went off together with the one I thought was the aggressor !People today are so ingrained to think of stuff in terms of plug-ins and effects that they miss the obvious.