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3. Product Overview
3.7.2. MMX8x4-HT420M
This model can receive audio from the sources below:
▪
HDMI in or TPS in (embedded audio),
▪
AUX analog audio I/O (configured as input): This port can be input
or output, depending on the configuration. In case of input, the
audio will be embedded into the HDMI stream of the port
besides (HDMI In 5 or HDMI In 6).
HDMI in
de- embedder
D/A converter
AUX analog
audio I/O
A/D converter
Port diagram of the AUX analog audio I/O
▪
Advanced audio input (AUX analog audio in),
▪
MIC in.
The output audio ports are:
HDMI out and TPS out (embedded audio): This is the embedded
▪
audio of the incoming video signal.
▪
AUX analog audio I/O (configured as output): This port can be
input or output, depending on the configuration. In case of
output, the audio will be de-embedded from the HDMI stream
of the port besides (HDMI In 5 or HDMI In 6).
Advanced audio output (AUX analog audio out): It contains
▪
three types of audio signal (see the picture above).
De-embedded audio from one of the incoming video (1x), the
advanced analog audio (1x) and the microphone (1x).
3.7.3. MMX8x8-HDMI-4K-A
This model can receive audio from the sources below:
▪
HDMI in (embedded audio),
AUX analog audio I/O (configured as input): This port can be input
▪
or output, depending on the configuration. In case of input,
the audio will be embedded into the HDMI stream of the port
besides (HDMI In 2, 4, 6, 8 and HDMI Out 2, 4).
The output audio ports are:
3.7.4. General Audio Settings from Inputs to Outputs
The list below contains the main settings of the audio signal from the
Audio
Audio
HDMI
source to the destination ports in different cases. These properties
embedder
can be set in Lightware Device Controller (LDC) software or with LW3
protocol commands.
3.7.4.1. HDMI IN HDMI OUT
In the first example, the embedded audio of the HDMI signal is
ADC
transmitted from HDMI in to HDMI out.
Crosspoint state: Switch the desired video input to the desired output.
For more details, see
command see
Port status: Unmute the necessary video port. For more details, see
HDMI Input Port Properties
LDC chapter, for LW3 command see
Query the Status of Destination Port
Input port properties: Set the Audio mode to HDMI audio passthrough.
This setting can be found only in I5 and I6 ports of MMX8x4-HT420M
model and I2, I4, I6, I8, O2, O4 ports of MMX8x8-HDMI-4K-A model.
HDMI audio passthrough is the default audio mode and this property
can not be changed in the other ports.
MMX8x4-HT series – User's Manual
▪
HDMI out (embedded audio): This is the embedded audio of the
incoming video signal.
AUX analog audio I/O (configured as output): This port can be input
▪
or output, depending on the configuration. In case of output, the
audio will be de-embedded from the HDMI stream of the port
besides (HDMI In 2, 4, 6, 8 and HDMI Out 2,4).
Video crosspoint
HDMI in
Crosspoint Operations
in LDC chapter, for LW3
Switching and Crosspoint Settings
and
HDMI and TPS Output Port Properties
Query the Status of Source Port
section.
3.7.4.2. AUX Analog Audio I/O HDMI OUT
In MMX8x4-HT420M and MMX8x8-HDMI-4K-A models
HDMI in
AUX analog audio I/O
Crosspoint state: AUX analog audio I/O belongs to the HDMI port beside.
To transmit the audio signal set the appropriate video input and output
in the video crosspoint. For more details, see
in LDC chapter, for LW3 command see
Settings
section.
Port status: Check the mute state of the necessary video ports. For
more information see
Output Port Properties
Status of Source Port
HDMI out
Input port properties: Set the Audio mode to Embed from aux audio, then
additional analog audio input settings becomes available. Take care
of the proper mute state, volume and gain values. For LW3 command
see
AUX Analog Audio I/O Port Settings
INFO: Valid video signal is needed for audio transmission, too. The
original audio of the HDMI will replaced with the analog audio.
section.
3.7.4.3. HDMI IN AUX Analog Audio I/O
In MMX8x4-HT420M and MMX8x8-HDMI-4K-A models
in
The de-embed audio of the HDMI
and
signal can be transmitted to the AUX
analog audio I/O port, which placed
beside the HDMI port. No crosspoint
setting required.
Port status: Check the mute state of
the necessary video port. For more details, see the
Properties
in LDC chapter, for LW3 command see
Source Port
section.
Input port properties: Set the Audio mode to Deembed to aux audio, then
additional analog audio input settings becomes available. Take care
of the proper mute state and volume value.
22
Video crosspoint
Audio
HDMI out
embedder
A/D converter
ADC
Crosspoint Operations
Switching and Crosspoint
HDMI Input Port Properties
and
HDMI and TPS
in LDC chapter, for LW3 command see
Query the
and
Query the Status of Destination Port
section.
section.
HDMI in
Audio
de-embedder
D/A converter
AUX analog audio I/O
HDMI Input Port
Query the Status of
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Troubleshooting
