24
APM6800
+
/APM6801
+
Installation and Operation Manual
Copyright © 2008-2009, Harris Corporation
Chapter 3: Configuration and Operation
Audio Status Reporting
describes the thresholds for audio status peak and silence reporting.
Clearing External Metadata
When you apply external metadata to the APM6800-D2
+
D/APM6801-D2
+
D
or the APM6800-D3
+
D/APM6801-D3
+
D, the metadata properties persist even
after you remove the external metadata from the module. Performing a Factory
Recall of the user settings does not clear the metadata properties that were
received when external metadata was present. After you remove the external
metadata, you must restart the module to clear the metadata properties.
Audio Synchronization
The APM6800
+
/APM6801
+
modules provide the capability to synchronize
audio with a companion video frame synchronizer by using the Data I/O
connection. To enable the audio synchronizer, set the
Audio Track Video
parameter to
Yes
. The Data I/O status of the upstream video frame synchronizer
will be reported in the
Input
>
Data I/O
menu.
Note
Do not use the audio synchronization feature with the
APM6800-D1
+
D/APM6801-D1
+
D module. It can corrupt the incoming
Dolby E or AC3 signal.
Table 3-2. Audio Output Test Tones
Test Tone
Frequency
Default Level
Test Tone 400 Hz
400 Hz
-18 dBFS
Test Tone 1 kHz
1 kHz
-18 dBFS
Test Tone 2 kHz
2 kHz
-18 dBFS
Test Tone 4 kHz
4 kHz
-18 dBFS
EBU R68
1 kHz
-18.06 dBFS
SMPTE RP155
1 kHz
-20 dBFS
Table 3-3. Audio Status Peak and Silence Reporting Thresholds
Status
Threshold
Peak
0 dBFS
Silence
-100 dBFS
Summary of Contents for APM6800+
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