Orei HDA-931 User manual

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Dual HDMI eARC & Audio Extractor
Incorporates HDMI® technology
-HDMI eARC, HDMI Audio, Optical and 3.5mm audio output
HDMI 2.1(eARC) / HDCP 2.3 /4K60 HDR
Model: HDA-931
INTRODUCTION
The OREI HDA-931 is a video and audio separated converter with three sets of HDMI
outputs, one for TV 4K@60/HDR video and audio signals, one for eARC Soundbar, one
for Amplifier HDMI audio, and S/PDIF(Optical) and analog 3.5mm stereo interface
outputs.
The TV signal can be transmitted back to Soundbar (eARC) via eARC (enhanced Audio
Return Channel) to play high-quality surround sound.
Even Non-eARC TV can enjoy the high-quality of eARC audio return for lossless audio
up to Atmos.
Build-in eARC automatically detects the source of the signal (TV or external signal), no
need to switch on or off.
CONTENTS OF PACKAGE
1 x Main Unit
1 x DC 5V/1A power adaptor
1 x 3.5mm to RL cable
User Manual

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FEATURES
Video and audio separation
Auto eARC Detection when using the TV's app or external devices
Supports dual HDMI audio interface (HDMI_eARC and HDMI_Audio)
Supports 4K@60 HDR
Compatible Dolby Atmos (via HDMI)
Supports Pixel clock rate up to 600 MHz
Supports S/PDIF, Stereo 3.5mm audio output
Supports DTS HD, Dolby TrueHD (via HDMI_eARC)
HDMI 2.0 / 2.1(eARC) support, HDCP 2.3 compliant
Three modes selection for audio format setting (2ch/ 5.1ch/ 7.1ch)
Support CEC (Use the TV RC to adjust the Soundbar sound and CEC connecting
device power on/off)
APPLICATION
1. Play the high quality audio from your source devices or smart TV streaming app to
eARC / ARC soundbar, home cinema set, audio amplifier and Enjoy 4K HDR Video
on TV.
2. Use TV eARC function for old audio equipment.
3. Enjoy PS5 / Xbox Series X lossless 7.1 surround sound.
4. Route eARC audio signal to other room.
5. Extract the eARC audio signal for amp to power the speakers.
6. Enable audio devices to accept TV eARC sound formats up to it's full potential.

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I/O INTERFACE
[Front]
[Back]
Connect external source Audio select Indication LED
The Audio select light position is
displayed.
*Audio Format select
(2CH > 5.1CH > 7.1CH) with key
Default
：
2CH
Audio Format select key
(2CH / 5.1CH / 7.1CH)
Connect power adaptor
(microUSB)
Connect Analog 3.5mm stereo
audio device
Connect Optical audio device
⑩
eARC Indication LED
light on
：
eARC Audio signal from TV
light off
：
eARC Audio signal from
external source
Default
：
eARC Audio signal from
external source
Connect Amplifier or Soundbar
with HDMI_Audio port
Connect Soundbar or Amplifier
with eARC(or ARC) port
Connect TV (HDMI port) or
(HDMI_eARC port)

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AUDIO INTERFACE TABLE
Audio Output Icon
Support audio formats
(channel)
2CH
5.1CH
7.1CH
HDMI_eARC ◎◎◎
(Uncompressed)
HDMI_Audio ◎◎◎
(Compressed)
S/PDIF(Optical) ◎◎
Stereo 3.5mm
(Analog)
◎

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APPLICATION ILLUSTRATION
External Source
Streaming APP TV

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CONNECTION
Connection external source
Step 1. Connect the HDMI cables from the external HDMI source devices (or HDMI
switcher) to the input port HDMI IN of the HDA-931.
Step 2. Connect the HDMI cable from your TV to the output port TV (HDMI/eARC) of
the HDA-931.
Step 3. Connect HDMI cable (with eARC function) or Optical cable or 3.5mm audio
cable from Audio System (Soundbar, Amplifier, Speaker etc.) to the output port
Soundbar (eARC) or Amp(HDMI-Audio) or OPTICAL or AUDIO of the
HDA-931.
Step 4. Set the audio format select AUDIO SELECT to 2CH or 5.1CH or 7.1CH (by
audio system).
Step 5. Connect the DC 5V/1A power adaptor to the micro USB DC 5V of HDA-931.
Step 6. After you finish the connection, one of the audio format indication LED (green)
will be lighted on.
Connection streaming APP TV
Step 1. Connect the HDMI cables from the TV (with ARC function) to the output port
TV (HDMI/eARC) of the HDA-931.
Step 2. Connect HDMI cable (with eARC function) or Optical cable or 3.5mm audio
cable from Audio System (Soundbar, Amplifier, Speaker etc.) to the output port
Soundbar(eARC) or Amp(HDMI-Audio) or OPTICAL or AUDIO of the HDA-931.
Step 3. Connect the DC 5V/1A power adaptor to the micro USB DC 5V of HDA-931.
Step 4. After you finish the connection, one of the audio format indication LED (green)
will be lighted on.
Notes.
eARC auto detect function default value is external source.
Connecting streaming APP TV successes, the eARC indication LED (green) will be
lighted on.

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TROUBLE SHOOTING
Q1: When there is no picture presented, please:
(1) Make sure the direct connection from the source device to the display device
without the main unit is working.
(2) Check if all connectors are connected well; and check if all cables can support
the transmission speed. High Speed HDMI cables are recommended.
(3) Check the power of main unit.
Q2: When resolution could not show in 4K.
(1) Make sure your sources and displays are fully supporting 4K.
(2) Make sure your HDMI cables are capable of transmit 4K video signal. (Use
Premium HDMI cable)
Q3: When there is no audio by audio system
(1) Make sure your audio system power is turned on and select correct source
position.
(2) Make sure your audio cable is connected and non-destructive.
(3) Make sure the HDA-931 audio select position that matches the sound device.
(4) Please refer your sound bar’s set up instruction
Q4: If you hear unusual audio noise from headphone or speaker that connect to
3.5mm output?
Please set your TV audio format from Auto(default:Dolby) to PCM.

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Q5: I've got an Atmos-enabled Sonos Soundbar.
Why I still cannot get Dolby Atmos Audio while watching TV streaming
program ?
Make sure your audio system power is turned on and select correct source
position.
For Dolby Atmos to work with HDMI eARC, you will need to have:
(1) A TV that supports Dolby Digital Plus through HDMI ARC or has an HDMI eARC
port.
(2) A soundbar or AV system that supports Dolby Atmos.
(3) An HDMI cable that can support the HDMI 2.1 specification.
(4) A streaming service or media type that uses Dolby Atmos.
Kindly note that HDA-931 cannot create Atmos sound from not Atmos
content
Q6: My TV only has HDMI ARC (not eARC), can this device make it to eARC?
If your TV only has ARC input, HDA-931 cannot upgrade to eARC.
The capabilities that your TV only has the ARC connection (5.1 or DD+ only)
However you can run the apps from external HDMI sources.
(1) When you are watching Dolby Atmos content over a streaming app from external
HDMI source devices, when connect to HDA-931 you can still have Dolby Atmos
capable soundbar / AVR to get the Dolby Atmos sound.
(2) For example:
External HDMI source →HDA-931 →one output to TV/ projector/ monitor
and one output to eARC soundbars.

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Q7: How to change audio settings on PlayStation 5 console and pass-through
Dolby Atmos to eARC soundbar ?
PLAY STATION 5:
(1) Settings →Sound →Audio Output →HDMI Device Type >>> change to
Sound Bar
(2) Settings →Sound →Audio Output →Audio Format (Priority) >>> change to
Dolby, if your speaker is connected directly to PS5)
BLU-RAY DISC (while playing):
(1) Enable Dolby Atmos in the disc audio
menu/settings
(2) Press "Options" button on PS5 controller
→3-dots menu →Settings →Audio
Format>>> change to Bitstream
Q8: I can get Atmos from other external source but I cannot get Atmos from
TV APP
(1) Please check eARC Indication LED
light on：eARC Audio signal from TV
light off：eARC Audio signal from external source
Default：eARC Audio signal from external source
(2) Make sure the cable connect your TV HDMI(eARC) port.
(3) Make sure the HDMI cable that can support the HDMI 2.1 specificaiton.
(4) Power cycler the device then turn back on again with following order : HAD-931 ,
external source device, Soundbar then TV

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Q9: Audio cuts in and out on soundbar, what could it be?
(1) Try power cycling it by unplug the power cord, wait a few seconds, and then plug
it back in.
(2) The Internet connection should allow at least 3 Mbps downstream other video
streaming services such as Amazon Prime rely on DD+ when delivering
surround sound.
Q10: Why I can't get uncompressed 5.1/7.1CH Dolby True HD, when connect my
AVR to HDMI audio port
(1) HDA-931: HDMI_eARC Audio support uncompressed 7.1CH.
(2) HDA-931: HDMI_Audio support compressed 7.1CH

Please switch Audio format to 5.1 or 7.1CH on HDA-931
NOTICE
Manufacturer reserves the right to make changes in the hardware, packaging and
any accompanying documentation without prior written notice.
The terms HDMI and HDMI High-Definition Multimedia Interface, and the HDMI Logo
are trademarks or registered trademarks of HDMI Licensing LLC in the United States
and other countries.
HDA-931 incorporates HDMI® technology.
Dolby is a registered trademark of Dolby Laboratories.
DTS is a registered trademark & the DTS logos and Symbol are trademarks of DTS,
Inc.
PS5 is a trademark of Sony Computer Entertainment Inc.
Xbox is either registered trademarks or trademarks of Microsoft Corporation in the
U.S. and/or other countries.