So here's something I haven't seen before: A client sent us some Super 8 Sound film shot in the 1980s, but the audio is consistently about 1 second out of sync throughout the reel. How is this possible? The sound record head was a fixed distance (18 frames) from the gate in all sound cameras, and it's clear that this is sync sound with appropriate ambient noise (not post-dubbed on a projector or editor). The subjects are holding the typical cheap condenser microphone that came with most of these cameras. You can hear them bump the mic against a table about a second before you see them do it.
I could see a sloppy manufacturer having the head be maybe a frame or two out of place, but given the way S8 Sound carts were constructed, there's not enough of a window for the record head to be a full 18 frames *more* away from the gate than it already is.
Any ideas? I'm stumped.
(and just to verify it's not our scanner, we've scanned several other films known to be in perfect sync and they're absolutely fine).