There is a very specific type of vocals in songs from I'd guess the early 1900's, that sound as if they weren't recorded into a steel traffic cone rather than a microphone, either way it sounds rather like a horn of some kind is being used to capture the audio.
It has a very nasal sound, very distinctive, I always picture it being a male voice, and for some reason I want to say gramophone but a quick couple searches didn't come back with what I am picturing. I am imagining World War I era or maybe early WWII songs that seem to have been recorded with this technology.
I've seen it spoofed on tv many times but still I can not place it - if anyone could help me figure out what this sound is, or what the recording tech is called I would greatly appreciate it. It's really the vocals that stand out, but I can't say for sure how the rest was recorded. The instruments too might be recorded this way.
I don't think it was a style decision - I think it's the technology they had at the time. Gosh I wish I could find one freaking example, even to put you on the right path...
PS: I don't think it's phonograph cylinders. Close but no cigar.