At 04:05 PM 2010-01-21, Corey Bailey wrote:
>There is mention of producing "Preservation Masters". From what fie
>format? Are we suggesting batch converting to achieve preservation
>master files? Batch converting can possibly open yet another can of
>worms and will only produce a 16 bit fie.
>If one is to use this medium for preservation master archival, then
>I would suggest digitizing in real time from the analog output of
>your best D/A converter capturing a 24/96 Wav file.
if the original DAT is 44.1 or 48 ks/s and 16 bits, why would you
make a preservation master at anything faster or deeper than this?
I am one of the few voices seriously questioning making 24/96 WAV
files from analog cassettes of oral history.
If you have a digital file, I think that it should be archived in its
original sample rate and bit depth. I think the IASA TC-04 book
concurs, but I didn't look it up.
Making a digital recording of the analog output of a DAT player
imprints the preservation master with the sonic signature of the
playback DAT's D-A converter. It is not the same as the original digital file.
There is no reason to store bits that weren't saved in the first place.
As to AIFF and WAV, they are the same PCM data in different wrappers, no?
My software of choice, Samplitude, will read or save in either
format. I don't think you're interpolating or doing any form of
conversion to the data (except perhaps re-ordering it), but rather
just rewriting headers and other metadata during this conversion.
Richard L. Hess email: [log in to unmask]
Aurora, Ontario, Canada (905) 713 6733 1-877-TAPE-FIX
Detailed contact information: http://www.richardhess.com/tape/contact.htm
Quality tape transfers -- even from hard-to-play tapes.