Extron Electronics VN-Matrix 250 User Guide - Manual (Page 68)

To synchronize channels, either between video and audio on one device or between video
channels on multiple devices, the frame delay should be set to 6 and the channel delay to 0.
Valid Delay settings can be determined by setting values then checking the Pipeline Status
Meter.
NORM
Setting is valid and should give a stable image.
LOW
Playback delay is too small: the playback image jumps as network loading
changes.
HIGH
Playback delay is too large: the image latency increases and may result in internal
buffer overflow on high bandwidth data streams. This causes a jumpy and flashing
screen.
Decoder video connection fields
The Source field shows the encoder name and the transport type for the current video
stream, as selected in the source drop down box (see Assigning a video source stream
on page 59).
Rtp destination reports the network address and port number that the current video
stream is connected to. For multicast transports, this field reports the multicast group
address.
Rtp source reports the network address and port number that return statistics are sent to.
For multicast transports, this field reports the multicast group address.
Decoder video stream statistics
Statistics about the current stream are reported in a table.
z
The total column contains counts for the history of the current stream. These statistics
are reset each time a new connection is made.
z
The window1 and window2 columns contain stream statistics over user programmable
intervals.
z
The first row is a count of the number of Megabits per second received from the current
stream.
z
The second row is a count of the number of data packets per second received from the
stream.
z
The third row is a count of the number of data packets dropped during the associated
interval time. This will always be 0 for TCP streams. Dropped packets are counted when
using RTP streams on busy networks. However some errors will occur when using
gigabit networks.
z The fourth row is the interval time over which the previous counts are averaged. The
total interval time reports the duration of the current connection session. The remaining
two times are user programmable in seconds.
Decoder audio bandwidth tab
To access the audio Bandwidth tab from the Device tab, click the Display0 link and, in
the Display tab, click the audio link.
This page provides access to the audio channel configuration settings. Similar to the
Decoder video bandwidth page, it also provides statistics on the audio stream and allows
the decoder audio buffer to be monitored and configured, if necessary.
VNM 250 • VNM 250 GUI Overview 62