Cobalt Digital Inc 9305 Product Manual page 61

Hd/sd-sdi embedded audio delay
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Operating Instructions
Table 3-4
Troubleshooting Processing Errors by Symptom — continued
Symptom
Audio signal(s) do not route
as expected.
Parameter control not
available as expected.
Audio not processed or
passed through card.
9305-OM (V4.1)
Error/Condition
• Audio Input Controls
Apply Audio Unity
Settings may have
inadvertently been applied
• Embedded audio contains
®
Dolby
E or Dolby Digital
signal
• Upmixer inadvertently
enabled (Upmixer
Licensed Feature Only)
• Group(s) and/or channels
not enabled
Input audio of type that
cannot be locked by 9305
card
9305 PRODUCT MANUAL
Corrective Action
• Recheck settings and re-apply routing as
desired.
Refer to Audio Input Controls function
submenu tab on page 3-10 for more
information.
®
• 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.
• 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 channels with new data;
same-channel output will no longer
represent same-channel inputs for
selected channels.
• In
Embedded Audio Group 1/2 and
Embedded Audio Group 3/4
make certain Group Enable controls are
set to On as intended.
Also make certain individual channel
Unmuted/Muted controls are set to
Unmuted as intended.
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.
Troubleshooting
functions,
3-35

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