For a couple months now, I will occasionally get noise on my DAT>computer transfers. Everytime I think I have it figured out, the next transfer I do seems to negate the previous theory. The noise can be described as static, almost like the recording is overloaded, but it's a constant light static and occurs more in the left (upper) channel.
My setup for transfers is Sony M1 > Sony 7-pin, optical I/O cable > optical input of a AOpen Cobra sound card > Cool Edit Pro 2.0
The first time I got this 'static', I thought it was the heads on my deck going back, tape shedding on the heads, or a cable problem. I thought this was strange since I use my M1 2-3 times a month and it had just got a clean bill of health from Pro-Digital just before this problem started. I wasn't till I taped over a 'bad' static filled tape of Mason Jennings that I realized this static issue was not on the master DATs and is happening during the transfer.
I have checked the optical cable connection and made sure there are no bends in the cable. I also air blasted the optical plug on the soundcard to make sure there was no dust preventing the signal from getting in. This problem occurs from using the wall wart, or using just batteries in the M1, so I don't think it's a power issue.
So now I'm down to:
1) It's something wrong with the 7-pin optical cable. I may try to borrow a 7-pin coax cable to see if that helps.
2) The soundcard is on the fritz. It is a cheap card, but it has worked fine for a long time.
3) There really is something wrong with my M1, and it only acts up occasionally for DAT xfers.
Any ideas? Has anyone had a similar issue before?
Thanks,
pjdavep