Grass Valley 8925EMB-B v.2.1.6 User Manual
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8925EMB-B and -U — Instruction Manual
Remote Configuration
Audio Input Warnings
The
Audio Input Warning
controls allow the user to define audio muting for the
four AES audio input streams for each type of audio warning detected by
the module. When an audio warning is detected and muting is enabled for
that condition, the module will mute audio streams 1-4 and an error will be
logged into the AES Errors Detected section of the Audio Input web page
(
Note
When the Low Delay checkbox is selected for an audio stream in the Audio
Input Status section (SRC bypassed), the auto-mute function is disabled.
Each type of audio warning listed below can be enabled or disabled for
muting audio streams 1-4 when this conditions occur:
•
Parity – warning indicates a parity error.
•
Bi-phase – warning indicates a coding error in the data stream.
•
Valid – warning indicates an invalid video sample.
•
Unlock/Block Discontinuity – warning occurs when the phase lock
loop is not locked.
•
C-CRC – warning indicates a Cyclic Redundancy Check (CRC) channel
status error.
•
Q-CRC – warning indicates a Cyclic Redundancy Check (CRC)
subcode data (digital information data multiplexed with the digital
audio) error.
Many of these warnings occur when the audio is affected by devices
upstream of the audio inputs. This function allows reducing or increasing
sensitivity of the audio error detection to meet the needs of the customer.
The module default condition is muting enabled for Bi-Phase errors only.