Martin Leese wrote:
Schumacher Marlon wrote:
Hi,
Thanks everybody for your well-considered comments.
The reason for going for a 2-channel format is compatibility with
distribution media formats (CD) - and I suppose it will mostly be listened
to without a decoder.
The possibility of recovering (2D) B-Format can be very useful, I think
(although apparently not 100% possible).
Nimbus Records archived most of their
recordings in 2-channel UHJ. This was fine
until, many years later, they wanted to release
to multi-channel. Unfortunately, converting
back from UHJ to B-Format (and then to other
formats) cannot be done without loss.
I would call this a serious case of incompetence. In the sense that it
was possible to archive 3/4 channels, also in the 80s.
If you archive in 3- or 4-channel B-Format
then you can *immediately* produce
2-channel UHJ from this. In addition, you
could later release to other formats without any
loss.
You can only gain by archiving in B-Format;
there is no downside.
Or distribute 3-4 channel UHJ, which is the stereo-compatible form of
FOA. Of course this proposal didn't "catch" on, even if this should
work. (I see this doesn't work for a CD distribution, but this is the
only case by now. But if you chose physical distribution, you still
could include the UHJ and/or B format version on some extra DVD. In this
case you would not need 2-channel UHJ at all...)
Best,
Stefan
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