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Old 2011-08-19, 04:55 PM
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Audioarchivist Audioarchivist is offline
Recording/Mastering Engineer
 
Join Date: Nov 2006
Location: Victoria, BC, Canada
Re: How to detect if audio is from a cassette

I have seen frequency response graph indicating stuff happening up to 240000hz on tape. I've seen one tape I made that has (although it isn't musical) a spike on the recording (not playback interference) - it was around 33000hz!

The tape doesn't necessarily cut off frequencies like a lossy file chops off. More likely the music rolls off at the same rate as the tape does, the same way the mics do...

It isn't as clear cut an issue for tape cut off points as the way an mp3 does it. There are lots of variances that can't be accounted for so easily...

Listen for breaks in the audio where the tape flips would have to be. That's your best clue...
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