Introduction - Hall Research Technologies HD-AUD-IO User Manual

HDMI 2.0 Audio Inserter & Extractor

1.0 Introduction

The Hall Research HD-AUD-IO is an all-in-one HDMI audio manager capable of
extracting audio from (de-embedding) and inserting audio into (embedding) an
HDMI video signal. The product also provides EDID management features.
The product provides one HDMI input with a corresponding HDMI output. The
HDMI input audio signal simultaneously extracts to both 2-channel L/R analog
and Digital SPDIF (TOSLINK).
The product provides two audio inputs (analog and digital). Users can select
which audio to embed in the HDMI output. It can be the same as the original
HDMI audio (pass-thru), SPDIF digital, or 3.5mm L/R analog.
Advanced EDID management allows users to control the video portion as well
as the audio part of the EDID. The EDID presented to the video source
connected to the HDMI input can pass from the downstream device or emulate
an EDID from internal memory. The device can also "Learn" the EDID connected
to its HDMI output.
The product has a video bandwidth of 18 Gbps and supports resolutions up to
4K @ 60 Hz 4:4:4 with HDR. It supports HDCP 2.2 as well as HDCP 1.4 if needed.
The device has the ability to generate and output a blank HDMI signal with
audio embedded even if there is no HDMI input; often referred to as "HDMI
Audio Bridging". This is a convenient means to distribute audio only signals
over an HDMI network.
The HD-AUD-IO has a configurable digital input terminal that can mute the
audio and/or video.
Typical Connection Diagram
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