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Old 2011-12-20, 04:34 AM
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Audioarchivist Audioarchivist is offline
Recording/Mastering Engineer
 
Join Date: Nov 2006
Location: Victoria, BC, Canada
Re: is this lossy? help needed

How old is the show? Sourced from a cassette tape master I'd think, depending on the mics used and the way it was copied off tape to digital, it'll probably not have a full hot and loud audible spectrum of sound up to 20000hz or more. Doesn't mean it's lossy, though. Looks pretty analog to me... Maybe some digital NR was applied over 20000 to minimize the tape noise?

With a decent spectral display, if you zoom in to about a 2 second range, you don't just look for a 16khz cutoff point, but look for a blocky "lego skyline" where the cutoff point is. It'll be pretty drastic. This one looks more like a gradual fade out at the top, and there's some smooth curves (relatively speaking) not squares and a harsh on/off line where frequencies just stop....
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