Figure 103: Setting up Dolby Atmos Connect advanced mode for CP950A
Following is a description of the Dolby Atmos Connect parameters.
Static source IP address
In this field, you can change the default Dolby Atmos Connect static IP address. You do not need to change
this default value. However, all other devices in the audio chain should have similar IP addresses within the
same subnet, except for the last octet, which you need to change so there are no IP address conflicts.
PTP domain number and priority
PTP (precision time protocol) maintains the audio synchronization between the playback device and any
connected devices within an auditorium, such as a Dolby Multichannel Amplifier or Dolby DAC3202. The
default setting is 109. If only one auditorium within a facility has a Dolby Multichannel Amplifier installed, we
recommend that you retain this default value.
If more than one auditorium in a cinema complex has a Dolby Atmos Connect Network, we recommend
keeping the networks separate, so you can use the same PTP parameters for the screen in each network.
In some cases, you may have more than one auditorium interconnected on the same network. We do not
recommend such a configuration. In such cases, you must enter unique PTP values for each auditorium. The
PTP domain number in this field must match the PTP domain number in the other connected devices in the
auditorium. For example, you can set one auditorium to 109, the next auditorium to 110, and so on.
PTP priority specifies the most trusted clock. A lower-number device is trusted more than a higher number.
You should set PTP priority 1 to 127. This is the default setting and correctly sets the DolbyCP950/CP950A as
the highest priority clock in the AES67 network with other Dolby devices that use 128 or a higher priority. You
can use PTP priority 2 to specify the higher-priority clock if there is a tie with more than one device in PTP
priority 1. Normally, you can just rely on the PTP priority 1 value, and PTP priority 2 can remain at the
default value of 128.
Destination multicast IP
The destination multicast IP address identifies the main IP address used in audio transmission. The Dolby
CP950/CP950A and any downstream devices in the auditorium should use the same exact IP address.
The default IP address is 239.81.83.67 for the Dolby CP950/CP950A, Dolby Multichannel Amplifier, and Dolby
DAC3202.
If more than one auditorium has a Dolby Atmos Connect Network, we recommend keeping the networks
separate so you can use the same destination multicast parameters for the screen in each network.
Working with the web client user interface
Dolby Cinema Processor CP950 and Dolby Atmos Cinema Processor CP950A Manual 76
Issue 9 Part Number 8800298 19 January 2022
To Next Page
Loading...
