User Manual

Dante Controller User Guide
Copyright © 2018 Audinate Pty Ltd. All rights reserved.
-72-
n Devices that are dropping packets because their latency is set too low
n Devices that are at risk of dropping packets because their latency is set too low
n Devices that could potentially have their latency reduced (if required; generally, the default Dante
latency of 1ms is more than adequate for low-latency applications)
About the Histogram
The transmitter's name is displayed at the top of the histogram, along with the latency value against which
the histogram is reporting.
The horizontal axis shows the distribution of audio packet latency measurements from the transmitter. The
vertical axis shows the number of measurements recorded at each data point, on a logarithmic scale.
Measurements are taken at roughly 1 second intervals, from when Dante Controller is started.
To clear the histogram, click Clear. Latency measuring will then restart.
To save the histogram as a png image, click Save.
Note: If any subscriptions are via multicast flows, there may be two histograms displayed for one
transmitter: one histogram for the unicast flows, and one for multicast. This is because multicast
flows always use a latency of 1ms. If the receiver is set to a latency other than 1ms, two histograms
will be displayed.
The following information is also displayed:
n The latency Setting for the histogram. In most cases, this will be the same as the latency setting on
the receiver. However, for some subscriptions, Dante will automatically apply a different latency. For
example:
o
Multicast flows are automatically set to a minimum of 1ms
o
If a transmitter does not support the latency set on the receiver (i.e. it can't guarantee delivery
within the required latency), Dante will increase the latency to the lowest setting supported by
the transmitter. Ultimo devices, for example, support a minimum latency of 2ms, so sub-
scriptions to Ultimo devices will use a minimum of 2ms latency.