The Autoselect Feature; Audio Interface - Lightware MMX8x8-HDMI-4K-A User Manual

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3. Product Overview
3.6.4. The Autoselect Feature
INFO: The autoselect mode can be set for each port separately.
There are three types of Autoselect as follows:
First detect mode: Selected input port is kept connected to the output
while it has an active signal.
Priority detect mode: Always the highest priority active input is selected
to transmit.
Last detect mode: Always the last attached input is selected to transmit.
INFO: The input ports, where the priority is set to 31 will
not be scanned. See more details about this setting in
Query the Input Port Priority section.
INFO: An input port is active if there is a valid signal on it.
3.7. Audio Interface
The table below shows the number of the audio signals and connector
types by model.
Summary of Audio Interface
Model
HDMI
input
MMX8x4-HT400MC 4x
MMX8x4-HT420M 4x
MMX8x8-HDMI-4K-A 8x
Model
HDMI
output
MMX8x4-HT400MC 4x
MMX8x4-HT420M 2x
MMX8x8-HDMI-4K-A 8x
Input or output, depending on the configuration. Sum of the analog
1
audio inputs and outputs is two.
Input or output, depending on the configuration. Sum of the analog
2
audio inputs and outputs is six.
Advanced audio settings
Audio inputs
Analog Advanced
TPS MIC
audio analog
input input
input audio input
4x - 1x 1x
MMX8x4-HT400MC
4x 2x 1 1x 1x
- 6x - -
2
Audio outputs
Analog Advanced
TPS
audio analog audio
output
output output
- - 1x
2x 2x 1x
1
- 6x -
2
MMX8x4-HT series – User's Manual
The MMX8x4-HT400MC and MMX8x4-HT420M models have a
dedicated Special Audio Input block with input ports for microphone
and advanced analog line-in. The built-in audio mixer allows for free
mixing of the microphone or the advanced analog line-in and the de-
embedded audio from one of the input HDMI signals.
MIC input Analog audio input De-embedded audio
Audio mixer
Analog audio output
Audio signals of the advanced analog audio output
Advanced audio properties of the audio ports are available in
Audio Tab in Lightware Device Controller Software (LDC) or via LW3
control protocol (in LW3 Programmers' Reference
See more details about the advanced audio ports in
This model can receive audio from three type of sources:
HDMI in or TPS in (embedded audio),
▪
▪
Advanced audio input (AUX analog audio in),
▪
MIC in.
The output audio ports are:
HDMI out: This is the embedded audio of the incoming video
▪
signal.
▪ 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).
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
AUX analog
audio I/O
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
section).
audio of the incoming video signal.
Rear View section.
▪ 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).
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).
20
Audio
Audio HDMI
de- embedder embedder
D/A converter
ADC
A/D converter