5. Hybrid Modular Matrix Concept
Hybrid Modular Matrix Switcher series – User's Manual
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Applied firmware package: v1.0.0 | LDC software: v2.4.0b3
5.2.
Audio Layer
5.2.1.
Overview
The embedded digital audio of the input video stream is copied to the Audio layer and it can be selected to
the analog audio interface as well.
On the output side the audio signal can be selected for the output video stream: the original embedded audio
is transmitted together with the video or it is changed to another audio (even analog audio) signal which is
selected in the audio crosspoint table.
5.2.2.
Digital Audio Interface
Inputs
The matrix is able to receive embedded audio streams via the digital video interfaces:
▪
Embedded HDMI audio over the MX2M-4HDMI20-IB board;
▪
Embedded HDMI audio over the MX2M-4OPTJ-IB board;
▪
Embedded DisplayPort audio over the MX2M-DH-4DP12-IB board.
INFO:
The audio signal can be that the
HDMI 2.0 standard supports
.
Outputs
The matrix is able to transmit audio streams from the Audio layer as audio embedded in the output video
signal provided that the signal on the audio layer qualifies for embedding.
The digital video signals can be:
▪
Embedded HDMI audio over the MX2M-4HDMI20-OB board;
▪
Embedded DisplayPort audio over the MX2M-4OPTJ-OB board.
INFO:
The audio signal can be
2-channel PCM up to 48kHz
or
compressed (non-HBR) audio
.
Crosspoint Settings
The audio layer is independent of the video layer. Thus, any audio input signal can be selected to any outputs.
However, there are limitations on how the respective output can treat the signal:
▪
Only LPCM audio signals routed from the Audio layer can be selected to the analog audio outputs of
the MX2M-AUX-8AUDIO board;
▪
Only LPCM and uncompressed (non-HBR) audio signals routed from the Audio layer can be selected
to the outputs of the MX2M series video output boards.
5.2.3.
Analog Audio Interface
DIFFERENCE:
The analog audio interface is available only when the
MX2M-AUX-8AUDIO
auxiliary board is
installed.
Configurable Ports
The MX2M-AUX-8AUDIO board is built with 8 pieces 5-pole Phoenix
®
analog audio ports. Each port can be
configured as input or output. See the details about the steps of the configuration in the
section.
Input Side
The matrix is able to receive analog audio streams via the analog audio interface. The received audio stream
is converted to digital audio signal and can be embedded to any digital video signal on the output side.
INFO:
The analog audio signal is converted to
LPCM with a sampling frequency of 48kHz
.
The following audio settings are available for the analog audio input signal:
▪
Volume
adjusting
▪
Balance
setting
▪
Gain
setting
The audio settings are available in the
Built-in website
/
Lightware Device Controller (LDC)
software (details in the
Analog Audio Input Port Properties
LW3 protocol commands
(details in the
Output Side
The matrix is able to transmit analog audio streams via the analog audio interface. The transmitted signal
can originate from an analog audio interface or can be de-embedded digital audio signal from any digital
video interfaces.
INFO:
The analog audio signal is converted to
LPCM with a sampling frequency of 48kHz
on the input side.
The following audio settings are available for the analog audio output signal:
▪
Volume
adjusting
▪
Balance
setting
The audio settings are available in the
Built-in website
/
Lightware Device Controller (LDC)
software (details in the
Analog Audio Output Port Properties
LW3 protocol commands
(details in the
