9
Audio and video formats / EDID modes
The formats are negotiated between the devices. You can influence this via the EDID control (EDID
= Extended Display Identification Data, which identifies an HDMI sink).
COPY
With this setting, the HDMI source only detects the HDMI sink at HDMI output 1 and optimises the
output format for it. This setting is usually useful if your main device supports many audio and vid-
eo formats. In this setting it may be possible that your second device does not play any sound or
picture, because the format is not supported. If your main device supports HDR / Dolby Vision, but
the second display does not, HDR will be displayed with distorted colours on the second device.
MIXED
With this setting, your HDMI source delivers a signal that both end devices can process. This
setting can be useful if you use both end devices at the same time. The lower featured HDMI sink
device limits the possible formats.
DEFAULT
In this mode, the HDMI source is signalled that your end devices support formats up to 4K 60Hz
HDR Dolby Vision and 7.1 HD sound formats. The HDMI source will then output the best possible
format. If your device is mute or produces a black screen, the format is not supported. In this case,
select another mode.
Note:
On some HDMI sources, you can manually set the audio and video format and override EDID
negotiation.
Automatic scaler
Basically, both end devices receive the same audio and video format. Exception: One display
supports 4K, the second display only supports Full-HD and the source delivers 4K. Then the scaler
function works in the splitter (except for 4K 60Hz YUV 4:2:2). The Full-HD device thus receives a
video signal downsized to 1080p, i.e. 4K / 2160p 60Hz becomes 1080p 60Hz. The HDR mode and
audio are not changed. The 4K display maintains the original resolution.
ARC pass
If you use the splitter at the output of an AV receiver, please connect HDMI ARC or eARC of a tel-
evision to HDMI Output 1. You can then play back the sound from the TV's internal tuner or smart
TV apps via the AV receiver. The volume can be adjusted as usual, HDMI-CEC control is supported.
ARC mode must be set on the TV and the AV receiver.
