Studio Technologies 76DA V.3.01 - Manual (Page 43)

Model 76DA/77 User Guide Issue 2, April 2011
Studio Technologies, Inc. Page 43
for Surround
Channel Status, User, and
Validity Bits
The non-audio bits that are part of the
AES3/AES3id digital monitor output chan-
nel data are actively controlled by the Mod-
el 76DA’s software. The Channel Status
bits use the Professional Use of Channel
Status block. They indicate a word length
of 24 and the current sample rate. The cor-
rect CRC is also calculated and inserted.
The User bits are always set to 0. When
a valid timing reference (sync) source is
recognized by the system the Validity bits
will be set to 1.
The Model 76DA’s hardware is capable of
routing the C/U/V bit information from any
of the L/R inputs, as well as the sync input,
to the main logic device (FPGA) and then
on to the digital audio transmitter (DIT) in-
tegrated circuits. This is provided for future
use and is not active at this time.