Grass Valley 8921ADT - Manual (Page 17)

8921ADT Instruction Manual 17
Configuration
If you know the maximum signal level of your audio inputs, you can enter
the value directly into the web page level adjustment fields. Refer to
Analog
Audio Inputs Page on page 35 .
For local control (no 8900NET module), you can adjust maximum input
levels by metering the corresponding output with a digital audio meter. To
correctly adjust the input levels for your digital application, use one of the
methods below:
• Apply a signal at – 1 dB below your maximum signal level to the analog
input and monitor the corresponding AES output with a meter that
indicates digital level in dBFS. Adjust each output until the meter indi-
cates – 1 dBFS.
• Apply an input audio level that is -20 dB below the maximum level,
(+4 dBu for the default, +24 dBu -20 dB = +4 dBu) and adjust the level
as indicated on a digital audio meter to -20 dBFS.
Audio Channel Pairing
The four analog input channels can be routed to any of the left and right
channel outputs of AES 1 and AES 2.
Audio Delay
The audio outputs can be delayed manually or synchronized to an external
auto-tracking input signal such as an input from an 8960DEC with 8900FSS
or 8981FS.
Each output channel can be delayed individually or locked together in two
groups, AES 1 Ch A and B, and AES 2 Ch C and D.