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440 Forums _ Sound Theory _ Dat Synch?

Posted by: CptAnalog Mon 15 Aug 2005, 08:42

Well, this certainly is odd. I was dubbing an old show which I'd cleaned up in the computer. It's a digital dub to DAT: SPDIF coax converted to optical via an Maudio box with no change in sample rate. During the original dub I allowed the DAT to run to the end to get continuous control track. Anyway, I was checking ID placements and decided to raise the level of one introductory monologue in the file and restart recording from that point. It sounded fine until I replayed the tape. From that point on it sounds like crap. I've never had that happen before, but I'm guessing it's a synch issue. Have you ever run into this problem?

Posted by: ourmanflinty Mon 15 Aug 2005, 12:50

Overload? If you're dubbing onto DAT and you've just pushed up the level could you be overlaoding at some stage, the format converter for instance?

Posted by: CptAnalog Tue 16 Aug 2005, 06:39

QUOTE (ourmanflinty @ Aug 15 2005, 11:50)

Overload? If you're dubbing onto DAT and you've just pushed up the level could you be overlaoding at some stage, the format converter for instance?

No, the section which I boosted is still at a peak level of only 30%. The whole file has been normalized to peak at 98% of full scale. Further, the distortion sounds like an overdriven mic pre, NOT digital distortion.
I'll just redo the entire dub from the beginning to a fresh tape.
Thanx