Operation Manual

6. Signal Flow and Lake® Processing
28
PLM+ SERIES Operation Manual rev 3.0.2
6. Signal Flow and Lake® Processing
6.1. Signal Flow
device provides seven points in the signal chain where the signal level can be adjusted, muted or disconnected.
The blue sections represent Frame data, and the red sections represent Module data - please refer to the Lake
Controller Operation Manual for further information.
Important information regarding correct setting of the gain structure can be found in section 10.2.
INPUTS
Dante Receivers 1-8
AES 1-4
Analog 1-4
OUTPUTS
Dante 1-8
(no mutes)
Dante Receivers/
AES/Analog pass
through to Dante/AES67
Input
Routers
1-4
WITH
INPUT
MUTES
Input
Mixer A
Input
Mixer B
Input
Mixer C
Input
Mixer D
Lake Contour
Module A
Attenuator
Mute
Phase Rev
Custom RPM
Lake Contour
Module B
Lake Contour
Module C*
Lake Contour
Module D*
ISVPL
Auto RPM
Amp Gain LoadSmart LoadPilot AMP
Attenuator
Mute
Phase Rev
Custom RPM
ISVPL
Auto RPM
Amp Gain LoadSmart LoadPilot AMP
Attenuator
Mute
Phase Rev
Custom RPM
ISVPL
Auto RPM
Amp Gain LoadSmart LoadPilot AMP
Attenuator
Mute
Phase Rev
Custom RPM
ISVPL
Auto RPM
Amp Gain LoadSmart LoadPilot AMP
Module Data stored in Module FIles (Speaker Presets)
Frame Data stored in System Files and Frame Presets
Output Routing
1 2 43 5
Figure 6.1: PLM+ Signal Flow Diagram
1
The input section (inputs, input router and input mixer) allows for mixing capabilities as well as redundant and
prioritized inputs with automatic switch-over in case of signal failure.
2
Up to four Lake Processing modules provide user EQ and loudspeaker processing, including LimiterMax limiting.
3
The Output router allows free routing between module outputs and power output channels.
4
Each power output channel provides individual channel processing, including ISVPL limiter, RPM and
load monitoring.
5
5.6.1. Dante
The PLM+ support dual redundant inputs and outputs on Dante, in either 48 or 96 kHz, with receive
latency as low as 0.25 ms and up to 5 ms.
Dante devices and channels can be given “friendly” names, meaning audio can be routed without having
to use or remember complex numbers.
Dante channels can be routed in Dante Controller or in Lake Controller.
5.6.2. AES67
When the device is in AES67 enable mode, the device is in 48 kHz only (also for Dante
subscriptions/transmissions). The receiver latency for AES67 subscriptions are 2 ms. Transmission flows
are Multicast only.
AES67 subscriptions can only be configured in Dante Controller. The AES67 transmitter must support the
SAP (Session Announcement Protocol). This is one of four device discovery methods referenced in the
AES67 standard. Check if the transmitting non-Dante AES67 device supports SAP. Otherwise Dante
Controller cannot discover the audio flows coming from the device. Dante devices support SAP if their
AES67 mode is enabled.
Multicast IP addresses must be in the range of 239.69.0.0 - 239.69.255.255.
If dual redundancy is enabled on the device, the AES67 flow only works on the primary network. It is still
possible to utilize Dante on primary and secondary networks at the same time as a AES67 flow is present
on the primary.
5. Operation and performance
28
PLM+ SERIES Operation Manual rev 3.0.4