I worked as a projectionist for a few years so in learning how sound is read off the film itself, I always assumed this is a phenomenon related to the fact that film is stored in rolls (same for VHS and cassette tapes), but what exactly is happening? Does sound from another part of the reel transfer due to the fact that the film touches? Maybe I’m way off, but I can’t for the life of me ask the right question to get an answer anywhere.
In: 13
Yes, the magnetic pattern on one layer of tape imprints very weakly on the next and previous one over time. The phenomenon even has a name, but I’ve forgotten what it is.
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