Christian Hack wrote:
Hi,
I'd be real interested in this if you were/are successful.
I have a Pinnacle PCTV (not a PRO so not stereo). Is it less likely to be
possible given that I don't have the PRO?
Christian
Yes because the pro card has a special chip (msp34xx) which demodulate
and decode
a stereo signal which is encode with a very simple algorithm (Nicam in
France) in digital,
this signal is emitted by some channel in addition of the analogic
Amplitude Modulation.
"All You Ever Wanted to Know About NICAM but were Afraid to Ask" :
http://tallyho.bc.nu/~steve/nicam.html
Your card is not able to decode the digital signal and work only in
analogic one. The
bt878 has analogic input but you won't get better result than with your
soundcard (maybe
worse depending of your soundcard) and it seems that Pinnacle made the
choice to not
wired it.
David Olivari
Is there anybody who already try to connect the i2s pins output of the
msp34xx to the bt878 i2s input ?
It seems that Hauppauge cards are wired like this, but the Pinnacle not.
As far I know, trying to understand the pcb routing : there is no audio
input wired on the bt878 neither analogic nor digital. So it's obvious
that btaudio module doesn't make any sound.
I'd really like to capture the digital nicam signal in order to capture
audio in the best available quality.
If my card is still working tomorrow, I would post some photos and
explanation of the wiring.
David Olivari
david.olivari@xxxxxxxxxxx
PS: Last bttv snapshot works fine although the stereo radio mode is
weird (unbalanced to the right speaker).
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