Crystal Vision
Introduction
Crystal Vision
Using the front control panel
Status menus
Pressing F1 from the home menu will bring up the top status menu. The status
menus provide the following information:
•
Audio silence sustain delay
•
AES1 and AES2 status
Status menu structure
Description
The top menu line displays the currently
selected sustained silence delay before the
‘Silence’ LEDs are illuminated, and (optionally)
the relevant GPI outputs are asserted low.
The F1 and F2 function keys select the AES1 or
AES2 channel status displays.
The AES1 or AES2 menus show if the AES
input is ‘OK’, ‘ERR’, or ‘missing’. If present
(OK), the actual current input sample rate and
sample rate tolerance is displayed. The standard
tolerance shown is <400 PPM or <4%.
Active audio channels are indicated by the
numbers 12 (Left = 1, Right = 2). Any silent
channels are indicated by the symbol ‘s’.
Note:
‘ERR’ indicates that the AES input signal does not match the operating
conditions. For example, the input sample rate is 32 kHz or 44.1 kHz,
when the DACA channel is set to ‘48 kHz Xtal Mode’.
Each input channel is equipped with ‘near silence’ detectors. If audio
signal levels are sustained at below –50 dBFS for more than a selected
period of time, a LED indicator for each channel comes on and an
appropriate GPI output can be asserted low.
Stereo 1 silent in either audio channel 1 or 2 will illuminate ‘silent’ LEDs
and assert GPO5 low if enabled. Stereo 2 silent in either audio channel 3
or 4 will illuminate ‘silent 2’ LED and assert GPO6 low if enabled.
DACA214 User Manual R1.9
14
04 February 2019