
AU-11CA-4K22
HDMI Audio Embedder with built-in Repeater
(4K, HDCP2.2, HDMI2.0)

Please read all instructions before attempting to unpack, install or
operate this equipment and before connecting the power supply.
Please keep the following in mind as you unpack and install this
equipment:
• Always follow basic safety precautions to reduce the risk of fi re,
electrical shock and injury to persons.
• To prevent fi re or shock hazard, do not expose the unit to rain,
moisture or install this product near water.
• Never spill liquid of any kind on or into this product.
• Never push an object of any kind into this product through any
openings or empty slots in the unit, as you may damage parts
inside the unit.
• Do not attach the power supply cabling to building surfaces.
• Use only the supplied power supply unit (PSU). Do not use the PSU
if it is damaged.
• Do not allow anything to rest on the power cabling or allow any
weight to be placed upon it or any person walk on it.
• To protect the unit from overheating, do not block any vents or
openings in the unit housing that provide ventilation and allow for
suffi cient space for air to circulate around the unit.
REVISION HISTORY
VERSION NO. DATE (DD/MM/YY) SUMMARY OF CHANGE
RDV1 24/11/16 Preliminary release
CONTENTS
1. Introduction ................................................................1
2. Applications ............................................................... 1
3. Package Contents ....................................................1
4. System Requirements ................................................1
5. Features ...................................................................... 2
6. Operation Controls and Functions ........................... 3
6.1 Front Panel ............................................................ 3
6.2 Rear Panel .............................................................4
6.3 Virtual COM Port Settings & Commands ...........4
6.4 EDID Manager ...................................................... 6
7. Connection Diagram ..............................................10
8. Specifi cations ..........................................................11
9. Acronyms ................................................................. 12

1. Introduction ................................................................1
2. Applications ............................................................... 1
3. Package Contents ....................................................1
4. System Requirements ................................................1
5. Features ...................................................................... 2
6. Operation Controls and Functions ........................... 3
6.1 Front Panel ............................................................ 3
6.2 Rear Panel .............................................................4
6.3 Virtual COM Port Settings & Commands ...........4
6.4 EDID Manager ...................................................... 6
7. Connection Diagram ..............................................10
8. Specifi cations ..........................................................11
9. Acronyms ................................................................. 12

1. INTRODUCTION
This 4K UHD+ Audio Embedder is designed to insert an external audio
signal (analog or digital) into any HDMI or DVI (with HDMI to DVI
adaptor) source signal to generate an HDMI compliant output with
new audio. Both stereo LPCM 2.0 and multi-channel bitstream audio
is supported for insertion and the preferred source can be selected
with a simple switch. Both the input and output HDMI ports support 4K
UHD+ resolutions up to 4K@60Hz (YUV 4:4:4, 8-bit) and are capable of
providing high quality audio and video performance. This unit supports
pass-through of HD and standard bitstream formats as well as LPCM
7.1 with audio sampling rates up to 192 kHz. Built in EDID management
support allows the user select from multiple EDIDs and, with the use of
optional PC software, to edit, upload and download EDID fi les.
2. APPLICATIONS
• Combines external audio and DVI video (via DVI to HDMI adaptor)
to be output as an HDMI signal
• Replaces audio in the original HDMI signal with an external audio
source
• AV system integration and home theater installation
• HDMI/DVI EDID management
3. PACKAGE CONTENTS
• 1 x UHD 4K 6G with HDCP2.2 Audio Inserter
• 1 x 5V Power Adaptor
• Operation Manual
4. SYSTEM REQUIREMENTS
• HDMI source equipment such as media players, video game
consoles or set-top boxes.
• HDMI receiving equipment such as HDTVs, monitors or audio
amplifi ers.
• Analog audio receiving equipment such as audio amplifi ers or
powered speakers.
• The use of “Premium High Speed HDMI” cables is highly
recommended.

This 4K UHD+ Audio Embedder is designed to insert an external audio
signal (analog or digital) into any HDMI or DVI (with HDMI to DVI
adaptor) source signal to generate an HDMI compliant output with
new audio. Both stereo LPCM 2.0 and multi-channel bitstream audio
is supported for insertion and the preferred source can be selected
with a simple switch. Both the input and output HDMI ports support 4K
UHD+ resolutions up to 4K@60Hz (YUV 4:4:4, 8-bit) and are capable of
providing high quality audio and video performance. This unit supports
pass-through of HD and standard bitstream formats as well as LPCM
7.1 with audio sampling rates up to 192 kHz. Built in EDID management
support allows the user select from multiple EDIDs and, with the use of
optional PC software, to edit, upload and download EDID fi les.
2. APPLICATIONS
• Combines external audio and DVI video (via DVI to HDMI adaptor)
to be output as an HDMI signal
• Replaces audio in the original HDMI signal with an external audio
source
• AV system integration and home theater installation
• HDMI/DVI EDID management
3. PACKAGE CONTENTS
• 1 x UHD 4K 6G with HDCP2.2 Audio Inserter
• 1 x 5V Power Adaptor
• Operation Manual
4. SYSTEM REQUIREMENTS
• HDMI source equipment such as media players, video game
consoles or set-top boxes.
• HDMI receiving equipment such as HDTVs, monitors or audio
amplifi ers.
• Analog audio receiving equipment such as audio amplifi ers or
powered speakers.
• The use of “Premium High Speed HDMI” cables is highly
recommended.

• HDMI input and output with 18Gbps (600MHz) 4K UHD+ support
• DVI 1.0 compliant with the use of an HDMI-DVI adaptor
• HDCP 1.4 and 2.2 compliant
• Supports HD resolutions up to 3840x2160@60 Hz (YUV 4:4:4, 8-bit) &
4096x2160@60 Hz (YUV 4:4:4, 8-bit)
• Supports 48-bit Deep Color up to 1080p60
• Supports pass-through of LPCM 7.1, bitstream and HD bitstream
audio formats over HDMI
• Supports embedding external audio sources (analog stereo or
digital S/PDIF) into an existing HDMI source, or adding audio to a
DVI source (output as HDMI)
• Supports HDMI audio sampling rates up to 192 kHz
• Supports the following S/PDIF audio sampling rates: 32kHz, 44.1 kHz,
48 kHz, 88.2 kHz, 96 kHz, 192 kHz
• Provides EDID management with EDID bypass and 2 user modifi able
EDIDs
• PC based EDID management tool support
• Outputs a 720p60 color bar pattern when no input is connected
• Supports RS-232 style control via a Virtual COM port over USB
Note: 4K UHD+ sources or equivalently high-bandwidth signals require
an appropriate compatible display and HDMI cables in order to
achieve the best image quality. The use of “Premium High Speed
HDMI” cables is highly recommended.
6. OPERATION CONTROLS AND FUNCTIONS
6.1 Front Panel
LINK
SERVICE
L/R
AUDIO
LOCK
BYPASS
OPTICAL
POWER
POWER
1 2 3 4 5
1
POWER & POWER LED: Press this button to power the unit on or off.
The LED will be lit when the unit is receiving power.
Note: Press and hold the Power button for 3 seconds to perform a
factory reset. Release the button once the LEDs begin fl ashing.
2
LINK: This LED will illuminate to indicate that a live source has been
detected on the input port. When no source is detected the LED
will remain off.
3
AUDIO LOCK: The LED will illuminate when Audio has been
detected
4
BYPASS/OPTICAL & L/R: This switch selects the source of the
audio to be embedded in the HDMI output. “BYPASS” passes the
audio directly from the HDMI input to the HDMI output without
modifi cation. “OPTICAL” embeds the audio from the optical S/PDIF
audio input (LPCM 2.0 or bitstream). “L/R” embeds the audio from
the analog stereo inputs (LPCM 2.0 only).
5
SERVICE: This slot is for EDID management, control and fi rmware
update use. Connect directly to your PC/laptop using a standard
Mini-USB cable to connect using the PC software or to send
commands (via virtual COM port).