I'm currently exploiting the 'proms' to do some comparions between:

1) prom broadcasts on BBCTV4 DTTV

2) proms on BBC R3 DTTV

3) proms on BBC R3 FM

The snag is that I have the DTTV box with the 'TV' system in the living
room, and record that onto DVD+R via analog scart. Whereas I have the FM
tuner in another room with the audio-only 'hifi' and record that onto CD-R.

I'd like to be able to record the s/pdif output of my DTTV receiver onto
CD-R. However this means either moving the CD-R recorder (which is awkward
for other reasons) or running a long co-ax from room to room.

I have a long run of co-ax so that is probably what I'd do for
test/comparison purposes. But if I can I'd like to be able to 'split' the
s/pdif signal so I can use in both places. This means finding a box that
will provide two s/pdif output streams from one. (Presumably, a box which
will need an amplifier, so has to be powered.) I may also want to put an
isolating transformer in the room-to-room s/pdif link to avoid any risk of
ground loops.

Anyone know if a splitter of the kind I'd need is available, if so, where
from, and at what cost? :-)

Failing a splitter, I can just use a switchbox, or swap cabling. But a
splitter would be more convenient if available and not too costly....

Also: I now have a DVD rewriter on my computer (*not* a windows box, not a
mac, not even x86/IBM form!) and can see the files on a DVD+R recorded
with my Philips DVD video recorder. Anyone know:

1) Are the recorded discs CSS encoded?

2) A source for an algorithm to convert the data onto the disc into an LPCM
form I can then examine/analyse?

FWIW Preliminary listening gives me the impression that the (1) BBCTV4 DTTV
sound is better than the (2) BBC R3 DTTV sound. However when recording for
comparsions this means recording (1) 'live' sic and (2) the next
afternoon. My impression is that I find (3) preferrable to (2) except for
the clearly higher background noise, but prefer (1) except for occasional
'mini-dropouts' which I suspect are due to ignition interference. However
I'm trying to get recordings I can analyse which means I need to recover
LPCM formats. Hence either a long lead, or a way to get LPCM out of the
audio recorded onto DVD+R. I'm also experimenting with different
arrangements, etc, to see to what extent preferences are either imaginary
or nothing to do with the broadcasts as such! :-)

Slainte,

Jim

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