evertz 570EMR-AG-HUB, User Manual

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570EMR-AG-HUB
User Manual
Page - 20
Revision 0.1
5.9. DELAY CONTROL
Figure 5-9 : WebEASY
®
- Delay Control
Manual and Auto Mode
In AUTO Mode:
* "
Network Delay ", i.e., this control allows the user to set the upper limit on time for audio to reach
AG-HUB from upstream source (in this case IPG), usually 1ms enough.
* " PTS Offset ", i.e., if sending device is adding any offset to Master PCR, before stamping the PTS
value on its output audio. 570IPG does not add any offset, so this can/should be 0 in your case. But
some compressed (JPG/MPG) devices add Codec Latency value, and that offset should be told to
AG-HUB. Otherwise AG-HUB will get audio packets that are too far 'in the future', and it won't know
how to store them.
In MANUAL mode :
* User only needs to specify how much input-to-output delay you want thru the AG-HUB. Jamming will
bring both counters close enough to permit proper sync. They should never go out of sync again, as
long they're running off the same Ref.