Cobalt Digital COMPASS 9081 HD_SD Frame Sync - Manual (Page 79)

9081-OM (V4.6) 9081 PRODUCT MANUAL 3-49
Operating Instructions
Troubleshooting
Audio signal(s) do not route as
expected.
Parameter control not available
as expected.
(9081 only) Embedded audio
contains Dolby
®
E or Dolby
Digital encoded signal
When a valid Dolby ® E or Dolby Digital signal
(in accordance with SMPTE 337M) is detected
on an embedded audio signal, gain and
polarity controls are bypassed (even though
controls may appear to be functional). Gain
and polarity controls are not available for this
signal type.
Refer to Status displays in Audio Input
Controls function submenu tab on page 3-10
for more information.
Audio not processed or passed
through card. • Input audio of type that
cannot be locked by 9081
card
• Embedded audio must be nominal 48 kHz
input.
Note: Although the Status Displays in Audio
Input Controls function submenu tab will
show audio formats other than “Present,
Professional” as being locked (such as
“Present, Consumer”), in any case the
audio must be at nominal 48 kHz rate for
lock and processing to occur.
• Enable control not turned on • Group Enable button for Embedded Audio
Group 1/2 or Embedded Audio Group 3/4
function submenu must be turned on for
sources to be embedded into respective
embedded channels.
• Upmixer inadvertently
enabled (Upmixer Licensed
Feature only)
• Make certain upmixer is set to Bypass if not
intended for use.
Note: When manually enabled or set for
automatic enable with appropriate signal
levels, upmixer overwrites selected
embedded channels with new data;
same-channel embedded output will no
longer represent same-channel embedded
inputs for selected channels.
Table 3-4 Troubleshooting Processing Errors by Symptom — continued
Symptom Error/Condition Corrective Action