>I read a FAQ on digital audio that stated that AES/BEU and SPDIF were not
>convertable. Yet, the only differences I could see where:
>1) Voltage levels
>    SPDIF is much lower voltage level (very easily wrong).
>2) Protocol
>    The framing is different. One uses one more bit for it's protocol (not a
>data bit).

Check out the Crystal Semiconductor line of digital audio transmitter and
receiver chips.  These contain all the logic necessary to turn SPDIF and
AES/EBU data into seperate audio and subcode data streams.  Essentially,
configure the receiver as one format and the transmitter as the other.  Feed
the bitstreams from one into the other.  You need an appropriate clock
source and there is some other minor bit twidling required, but the chips do
most of the work for you.  This configuration also allows you to modify
subcode info (more work but can be done.

dwayne


Dwayne Reid   <dwayner@planet.eon.net>
Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
(780) 489-3199 voice          (780) 487-6397 fax

Celebrating 15 years of Engineering Innovation (1984 - 1999)

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