Audio Interface; Audio Input Modes; Audio Options - Example - Lightware UMX-HDMI-140 Series User Manual

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4. Device Concept
4.3. Audio Interface
4.3.1. Audio Input Modes
The device can receive embedded digital audio signal on the HDMI, DisplayPort, and DVI-D input ports and
analog audio signal on the Jack and the Phoenix input ports.
Audio Embedding
The switcher has a built-in audio embedder function which means the audio signal being received on the
analog audio input port can be embedded to the HDMI output.
The video and audio inputs can be combined with limitations. Below table contains the allowed connections:
HDMI
HDMI

DP -
DVI-D -
VGA -
DVI-A -

ATTENTION! Audio embedding is available where the pixel clocking of the video signal is up to 225 MHz.
If the output video is 4K, the audio embedding function is not available.
Audio sources
DP DVI-D Analog audio 1 Analog audio 2
- -

-
 
-
 
- -

- -

Allowed audio connections
Applied firmware package: v1.2.0 | LDC software: v2.4.1b7
UMX-HDMI-140 series– User's Manual
4.3.2. Audio Options - Example
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The Concept
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Three audio sources are connected to the switcher: a Blu-ray player on the HDMI input (embedded HDMI
 audio); a Laptop on the analog audio input 1; and a Media player on the analog audio input 2. There are two
video sources as well: the Blu-ray player on the HDMI input (digital video with the embedded audio) and the
Laptop on the VGA input (analog video).
The following options are available for audio routing / signal selection:
▪ If the video input source of the HDTV is the Blu-ray player, you can select from the following audio
sources:
– the original embedded HDMI audio from the Blu-ray player;
– the analog audio input 1 from the Laptop;
– the analog audio input 2 from the Media player.
▪ If the video input source of the HDTV is the Laptop, you can select from the following audio sources:
– the analog audio input 1 from the Laptop;
– the analog audio input 2 from the Media player.
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