5. Device Concept MMX8x4-HT series – User's Manual 42
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).
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:
▪ 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).
General Audio Settings from Inputs to Outputs
The list below contains the main settings of the audio signal from the source to the destination ports in
protocol commands.
HDMI IN HDMI OUT
Crosspoint state: Switch the desired video input to the desired output. For more details, see Crosspoint
Operations Switching and Crosspoint Settings section.
Port status: Unmute the necessary video port. For more details, see HDMI Input Port Properties and HDMI and
TPS Output Port Properties and
Status of Destination Port section.
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 and MMX8x8-HDMI-4K-A-USB20 models.
HDMI audio passthrough is the default audio mode and this property can not be changed in the other ports.
HDMI OUT
Crosspoint state:
appropriate video input and output in the video crosspoint. For more details, see Crosspoint Operations in
Switching and Crosspoint Settings section.
Port status: Check the mute state of the necessary video ports. For more information see HDMI Input Port
Properties and HDMI and TPS Output Port Properties
of Source Port and section.
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. AUX
section.
INFO:
with the analog audio.
HDMI IN
The de-embed audio of the HDMI signal can be transmitted to the AUX
setting required.
Port status: Check the mute state of the necessary video port. For more
details, see the HDMI Input Port Properties
command see 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.
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