Epiphan Video AV.io 4K Users Guide

User Guide

Epiphan AV.io 4K™

September, 2022

1.0

UG113-05

Terms and Conditions

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registered trademarks of Epiphan. All other company and product names and logos may be trademarks or registered
trademarks of their respective owners in certain countries. For additional terms and conditions, refer to sections at
the end of document.

Copyright © 2022 Epiphan Systems Inc. All Rights Reserved.

THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE
INFORMATION PACKET OR PRODUCT INSTALLATION SOFTWARE PACKAGE THAT SHIPPED WITH THE PRODUCT AND
ARE INCORPORATED HEREIN BY REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSES OR LIMITED
WARRANTY, CONTACT YOUR EPIPHAN REPRESENTATIVE FOR A COPY.

PRODUCT DESCRIPTIONS AND SPECIFICATIONS REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO
CHANGE WITHOUT NOTICE. EPIPHAN PERIODICALLY ADDS OR UPDATES THE INFORMATION AND DOCUMENTS ON
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OR FITNESS FOR A PARTICULAR PURPOSE.

ii

Thank you for choosing EpiphanVideo!

At EpiphanVideo, product function and quality are our top priority. We make every effort to make sure
that our products exceed your expectations.

Product feedback

Your feedback is important! We regularly contact our customers to ensure our products meet your
performance and reliability requirements. We strive to continually enhance our products to
accommodate your needs. Please let us know how you think we can improve our products by emailing
your suggestions to [email protected].

Specifications

Go to the EpiphanVideo website to get the most recent product specifications and additional information
about this product.

Warranty

All EpiphanVideo products are provided with a 100% return to depot warranty for one year from the date
of purchase.

Technical support

Epiphan’s products are backed by our professional support team. If you are having issues with your
product, please gather details about your system and contact our team by:

l

E-mailing [email protected]

l

Live chat via the link on our support site

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Phone toll free at 1-877-599-6581 or call [phone]

Be sure to include as much information about your problem as possible, including:

l

Problem description

l

Details of the video or audio source (type, resolution, refresh rate, etc.)

l

Product serial number

l

Your operating system and version number

Copyright © 2022 Epiphan Systems Inc. All Rights Reserved

iii

Release notes

Version 4.0.0

Firmware 4.0.0 is a maintenance release that fixes some minor issues and improves the memory
allocation performance of the AV.io 4K.

What's fixed

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Improved the AV.io 4K image quality when downscaling from 1080p to 720p.

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The audio capture using AV.io 4K is improved and audio no longer gets dropped during capture.

iv

Registering the device

Why should I register my AV.io 4K?

It will allow you to activate your product warranty, give you notifications of firmware and software
updates, and enable you to get our free personalized customer support.

How to register

1. Go to epiphan.com/register

2. Provide the required information. Your six digit serial number is found on your device. A valid e-mail
address is required for product registration.

v

Table of contents

Terms and Conditions ii
Thank you for choosing EpiphanVideo! iii
Release notes iv
Registering the device v

Getting Started 1

Product overview 2
What's in the box? 3
Hardware 4

Hardware diagrams 4

Indicator LED details 5

Quick start 7
Technical specifications 8

System requirements 10

Capture 11

How AV.io 4K works 12
Set up your AV.io 4K for capture 13
Resolutions, aspect ratios, and capture rates 14
Automatic image scaling & audio resampling 16
Third-party applications 17

Configuration 18

Install the AV.io Config tool 19
Update firmware using the AV.io Config tool 23
Identifying the input resolution 26
Configure settings using AV.io Config tool 27
Advanced Settings 29
Set custom resolution user modes 31

Appendices 34

Troubleshooting 35
Limitations and known issues 38
Releases and features 40
Software license 41

vi

AV.io 4K User Guide Getting Started

Getting Started

Welcome and thank you for buying Epiphan Video’s AV.io 4K!

This guide contains all the information necessary to successfully capture live video content without any
configuration – simply connect the cables and you’re ready to go!

We'll start off by telling you about the product; giving you an overview, discussing the technical
specifications, and more. Then we'll cover capturing video; providing a functional overview of how the
product works, as well as some information on common resolutions, and third-party capture applications.
Finally, we'll finish with a more detailed look at configuration, including advanced configuration options.

Let’s get started!

1

AV.io 4K User Guide Product overview

Product overview

AV.io 4K is the latest addition to Epiphan Video's industry-leading video grabbers product line, adding 4K

resolution support while maintaining support for HD and SD resolutions.

To use AV.io 4K, there's no software to install; simply connect the cables and go. It works on Windows,
Mac, and Linux and integrates seamlessly with your favorite third-party applications such as Teams,
Zoom, OBS, Wirecast, vMix, VLC, and Quicktime.

AV.io 4K captures resolutions up to and including 4096×2160, making it the simplest way available to
capture DCI 4K and 4K UHD digital signals.

For those curious as to the difference between DCI 4K and 4K UHD, these are just different definitions of a
4K resolution. 4K UHD (3840×2160) is the standard 4K resolution available on televisions and other
common display screens. The 4K resolution of 4096×2160 is referred to as Digital Cinema Initiatives (DCI)
4K, and is the resolution used almost exclusively for cinema-scale film production. It is rare to find this
resolution outside of a cinematic context. AV.io 4K is capable of supporting input and output at either.

2

AV.io 4K User Guide What's in the box?

What's in the box?

Your AV.io 4K product contains everything you need to easily capture live video content with minimal
setup. Your purchase includes the following:

Table 1 Description of included purchase contents (for identification only, color and appearance of individual

cables/adapters may vary).

AV.io 4K video grabber Your video capture device!

HDMI connector cable
(1 m / 3 ft)

USB 3.0 cable (1 m / 3
ft)

Connects an HDMI source to
your AV.io 4K’s native HDMI
port.

The USB 3.0 cable connects
your AV.io 4K video grabber
with your computer’s USB 3.0
or 2.0 port.

3

AV.io 4K User Guide Hardware

Hardware

This section describes the physical features of your AV.io 4K, including diagrams and hardware feature
descriptions.

Topics covered include:

l

Hardware diagrams

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Indicator LED details

Hardware diagrams

Your AV.io 4K device includes an input, an output, and an indicator light.

Input/output ports and indicator lights are identified and explained in the top and bottom view images
below. Indicator light details are explained in the following section.

Top view:

Bottom view:

4

AV.io 4K User Guide Indicator LED details

Indicator LED details

The color and action of the indicator LED depends on whether you are connected by USB 3.0 or USB 2.0.
For maximum performance, always use a USB 3.0 port and the included USB 3.0 cable. Note that frame
capture rate will be reduced when connected via USB 2.0.

4K resolutions with USB 2.0 will likely be unstable.

From the operating system's UVC drivers, the application will receive the AV.io 4K supported color space,
resolution and frame rates.

If you’re not sure if your controller is USB 3.0 or USB 2.0, plug AV.io 4K into the capture computer and look
at the indicator LED. After initial boot up(red LED), blue is used for USB 3.0 and green is used for USB2.0:

Blue LED means USB 3.0

Connection type/LED color USB 3.0 connection USB 2.0 connection

Firmware update in progress

Solid red

AV.io 4K initializing

Solid green N/A USB 2.0 connection active

Blinking green N/A

Solid blue USB 3.0 connection active N/A

Green LED means USB 2.0

Firmware update in progress

AV.io 4K initializing

Video and/or audio

transferring successfully

5

AV.io 4K User Guide Indicator LED details

Blinking blue

Video and/or audio

transferring successfully

N/A

6

AV.io 4K User Guide Quick start

Quick start

Setting up your AV.io 4K device to capture live video and audio content couldn’t be easier!

Before you begin the connection process, you will require:

l

An HD video source (with or without audio)

l

Your capture card device

l

A capture desktop computer, laptop or notebook

l

A USB cable (included with purchase) to connect your AV.io 4K to your capture computer

l

AnHDMI cable (included with purchase) to connect your video source to your AV.io 4K.

Once you have these things ready to go, you can now begin the simple process of hooking up your AV.io
4K so you can start capturing!

To connect your AV.io 4K for capture:

1. Connect your AV.io 4K device to your video source

2. Connect your AV.io 4K device to your computer

3. (Optional) Connect your audio device to the 3.5 mm audio input.

4. Open your favorite third-party application, select AV.io 4K from the list of available cameras and
start capturing!

And that’s it. No drivers to install and no extensive set-up. Just connect the cables and you’re ready to go!

7

AV.io 4K User Guide Technical specifications

Technical specifications

Technical specifications for AV.io 4K are included in the table below.

Operating System
support

Drivers Native UVC and UAC device auto-detected by OS

Processor
requirements

Input connector HDMI

Input resolution

Output connector USB 3.0 B-Type connector with USB 2.0 backward compatibility

Output scaling

Windows 8.1, Windows 10, Mac OS X 10.10 and up, Linux distribution
with kernel 3.5.0 or higher

Your capture computer processor should be equal or superior in
performance to i7 6770HQ for good 4K results.

Standard and non-standard resolution from 640×360 up to
4096×2160 (4K DCI).

Choose from: no scaling (1:1), preserve aspect ratio scaling or aspect
ratio conversion scaling

Color space YUY2

(4:2:2)

640×360

Color spaces NV12,

YV12 and I420 (4:2:0)

Supported output
resolutions

640×480

960×540

1024×768

1280×720

1280×1024

1600×1200

1920×1080

1920×1200

15, 23.97, 24, 25,

29.97, 30, 50, 59.94
or 60 fps

15, 23.97, 24, 25,

29.97, 30, 50, 59.94
or 60 fps

8

AV.io 4K User Guide Technical specifications

2048×1024

2560×1440

2560×1600

3200×1800

3840×2160 (4K UHD)

4096×2160 (DCI 4K)* 5, 10, 15, 20 fps

When capturing 4K resolutions we recommend using a computer with

USB host
controllers

HDMI audio input Up to 96 kHz sampling rates

an Intel USB host controller (this is the most common type) to achieve
the best results. With other USB host controllers such as ASM, AMD,
VIA, Renesas, Eltron, Fresco and TI, capture will be at 79% to 96% of
the expected frame rate.

5, 10, 15, 20 fps

15, 23.97, 24, 25,

29.97, 30 fps

Audio output 16-bit 48 kHz stereo sampling rates

Capture latency

HDCP

LED LED indicates the status of AV.io 4K

Dimensions 3.54″ × 2.36″ × 0.91″ (90 mm × 60 mm × 23 mm)

* Note: For DCI 4K, the actual frame rate is limited to 24 fps for NV12/I420 and 15 fps for YUY2.

Near-zero. However, third-party applications may contribute capture
delay

High-bandwidth digital content protection (HDCP) protected content
cannot be captured

9

AV.io 4K User Guide System requirements

System requirements

System requirements are the barebones technical essentials your computer needs to work with AV.io 4K.
System requirements to use AV.io 4K include:

Video source Any VESA-compatible HDMI (or DVI-D) source.

Any computer (laptop/desktop/other format) with:

l

a compatible USB 3.0 host controller for SuperSpeed operation

Video capture
workstation

and 4K functionality (for maximum performance, an Intel USB

3.0 host controller is needed); or,

l

a USB 2.0 host controller (will limit maximum frame rate and
resolution support)

Video capture
workstation
operating system

Processor
frequency

RAM Minimum recommended value: 4 GB

Windows 8.1, Windows 10, and up
Mac OS X 10.10 and up
Linux distribution with kernel 3.5.0 or higher

Minimum recommended value: 2.4 GHz

10

AV.io 4K User Guide Capture

Capture

Setting up your AV.io 4K device to capture live video content couldn’t be easier!

Before you begin the connection process, you will require:

l

An HD video source (with or without audio)

l

Your capture card device

l

A capture desktop computer, laptop or notebook

l

A USB cable (included with purchase) to connect to your AV.io 4K to your capture computer

l

AnHDMI cable (included with purchase) to connect your video source to your AV.io 4K.

Once you have these things ready to go, you can now begin the simple process of hooking up your AV.io
4K so you can start capturing!

11

AV.io 4K User Guide How AV.io 4K works

How AV.io 4K works

Once you’re ready to start capturing, you’ll need either a built-in or third-party application to capture
video and audio content with AV.io 4K.

The application communicates with AV.io 4K and negotiates a color format (the range of available colors),
frame rate (frequency at which frames in a video sequence are displayed) and frame resolution (size of
a single video frame in pixels). A higher frame rate means smoother video capture while the frame
resolution determines the aspect ratio of the video output as well as its dimensions and degree of
definition.

With the help of AV.io 4K, the content from your video source is automatically configured and captured on
your computer through your selected application. If the application requests a frame size that is smaller
or larger than your video source, AV.io 4K automatically scales the video for you. For consistent and
widely compatible output, audio is automatically resampled to 16-bit 48 kHz stereo audio.

No configuration required!

12

AV.io 4K User Guide Set up your AV.io 4K for capture

Set up your AV.io 4K for capture

To connect your AV.io 4K for capture:

1. Connect your AV.io 4K device to your video source, ideally directly to the source, but some video
sources may require special adapters

2. Connect your AV.io 4K device to your desktop computer, laptop, or notebook

3. Open your favorite third-party application, select AV.io 4K from the list of available input sources,
and start capturing!

And that’s it! No drivers to install and no extensive set-up! Just connect the cables and you’re ready to go!

13

AV.io 4K User Guide Resolutions, aspect ratios, and capture rates

Resolutions, aspect ratios, and capture rates

The resolution (also known as frame size or display mode) of a video signal, digital image, TV screen,
computer monitor or other display device is a count of the number of pixels displayed horizontally and
vertically. For example the resolution 1920×1080 (which is 1080p) creates an image that is 1920 pixels
wide and 1080 pixels tall.

The aspect ratio of an image describes the proportional relationship between its pixel width and height.
The resolution 1920×1080 (1080p) is quite a bit wider than it is tall. The ratio of its width to height is 16 to
9, represented as an aspect ratio 16:9.

AV.io 4K outputs resolutions in commonly supported aspects ratios. The table below is a color-coded
legend for interpreting the two tables of product resolutions below it:

Aspect Ratio Common Use

4:3

16:9

16:10 (8:5)

5:4

1.90:1

AV.io 4K accepts the following inputs by default:

Standard TV (NTSC/PAL) display and non-widescreen computer displays

Widescreen (HD) TV displays (1080p, 1080i, 720p etc.), and 4K-capable displays

Widescreen computer displays, and 4K-capable displays

Sometimes used in larger format computer monitors

Digital Cinema Initiatives standard resolution for 4K or 2K video projection

640×480 1024×768 1280×720 1280×800

1280×1024 1440×900 1600×1200 1920×1080

1920×1200 2048×1080 3840×2160 4096×2160

If you're using an input resolution that is not on this list, it might still be possible to capture. However, the
video might be stretched, or scaled to a different size and surrounded by black letter-boxing, based on
the software and your configuration settings. Read Configure settings using AV.io Config tool for more
detail.

14

AV.io 4K User Guide Resolutions, aspect ratios, and capture rates

AV.io 4K generates a list of the following possible resolutions for your capture application to select for
output display:

640×360 640×480 960×540 1024×768

1280×720 1280×1024 1600×1200 1920×1080

1920×1200 2048×1024 2560×1440 2560×1600

3200×1800 3840×2160 4096×2160

Captured video content is output to your application , depending on your resolution and color space, at 5,
10, 15, 20, 23.97, 24, 25, 29.97, 30, 50, 59.94 or 60 frames per second (your application chooses one of

these frame rates) when captured over USB 3.0. This table is not an exhaustive list of all the resolutions
your AV.io 4K can output, just a list of common and tested resolutions.

When capturing 4K resolutions we recommend using a computer with an Intel USB host controller (this is
the most common type) to achieve the best results. With other USB host controllers such as ASM, AMD,
VIA, Renesas, Eltron, Fresco and TI, capture will be at 79% to 96% of the expected frame rate.

15

AV.io 4K User Guide Automatic image scaling & audio resampling

Automatic image scaling & audio res­ampling

If your source content is larger or smaller than the frame size chosen by the application, AV.io 4K
automatically scales your source to match the desired frame size. No user configuration required!

AV.io 4K also automatically performs audio resampling, meaning that no matter the bit depth or
sampling frequency of audio through an HDMI audio source, AV.io 4K automatically resamples your audio
so that your application gets a consistent audio sample rate and bit depth, even if you change the video
source.

16

AV.io 4K User Guide Third-party applications

Third-party applications

AV.io 4K uses pre-installed drivers on your OS (called UVC drivers and UAC drivers) to communicate with
third-party applications and capture content. Due to AV.io 4K's use of UVC/UAC technology, there is no
need for driver installation. Just like a webcam, your AV.io 4K device is immediately recognized as a
camera device and can be used to capture content via any UVC-compatible third-party application.

Third-party applications that work with AV.io 4K include, but are not limited to the following list. Try your
favorite capture application!

Zero-install applications (included with your OS)

Skype

(with Windows 8.1 and Windows 10)

Popular applications available for download

Skype

Adobe FMLE VLC media player

Windows Camera app

(with Windows 8.1 and Windows 10)

Wirecast

QuickTime

(with Mac OS X)

QuickTime

17

AV.io 4K User Guide Configuration

Configuration

Your AV.io 4K device is ready to use right out of the box; however, there is support for additional
configuration should you need it.

Firmware updates and changes to default capture settings can be applied to your AV.io 4K using Epiphan’s
AV.io Config tool. For settings to persist after power cycling, please allow 5 seconds before disconnecting
or restarting device.

You likely won’t need to use the AV.io Config tool for more than firmware updates, but advanced settings
can help you tweak the performance to get the most out of your AV.io 4K.

Advanced configuration options include:

l

Use input signal resolution

l

Preserve aspect ratio

l

Performance mode

The option Audio selector for multichannel inputs does not apply to AV.io 4K.

Detailed instructions on how to use AV.io Config include:

l

Install the AV.io Config tool

l

Update firmware using the AV.io Config tool

l

Identify input details using the AV.io Config tool

l

Configure settings using AV.io Config tool

l

Advanced Settings

l

Set custom resolution user modes

18

AV.io 4K User Guide Install the AV.io Config tool

Install the AV.io Config tool

Epiphan’s AV.io Config tool is used for loading firmware updates on your AV.io 4K and for advanced
settings changes.

You may install AV.io Config on the same computer(s) where you use AV.io 4K, or only on one
computer for configuration. All firmware updates and settings changes are saved to the device
and work without any software installed on the computer. For settings to persist after power
cycling, please allow 5 seconds before disconnecting or restarting device.

To install the AV.io Config tool, follow the directions below for your computer's operating system.

Windows

1. Download the AV.io Config package under the Windows heading on the AV.io 4K Downloads page
on Epiphan’s web site.

https://www.epiphan.com/support/avio-4k-software-documentation/

2. Extract all the files from the zip file (remember the location you're unzipping to).

3. Browse to the unzip folder and open the AV.io Config tool by double-clicking on AVioConfig.exe.
(Depending on your local security settings, you may need to right-click and choose to run the file as
an administrator).

4. AV.io Config starts! If you video grabber is connected to the computer by USB, it is detected.

19

AV.io 4K User Guide Install the AV.io Config tool

Mac

1. Download the AV.io Config package under the Mac OS X heading on the AV.io 4K Downloads page
on Epiphan’s web site.

https://www.epiphan.com/support/avio-4k-software-documentation/

2. Double-click the downloaded file to open the disk image package.

3. If desired, drag the AVioConfig application to your desktop or another location where you will find it
for future use.

4. Double-click the AVioConfig application icon to launch AV.io Config; a warning box appears.

20

AV.io 4K User Guide Install the AV.io Config tool

5. Click Open.

6. AV.io Config starts! If you video grabber is connected to the computer by USB, it is detected.

Linux

1. Download the AV.io Config package under the Linux heading on the AV.io 4K Downloads page on
Epiphan’s web site.

https://www.epiphan.com/support/avio-4k-software-documentation/

2. Untar and unzip the contents of the .tar.bz2 file (tar -xjvf can be used to untar and unzip in one
command).

3. Browse (or change directories) to the unzip folder.

4. Either: Double-click the AV.io Config application icon or execute the AV.io Config application from
the command line to launch AV.io Config (./AVioConfig).

5. AV.io Config starts! If you video grabber is connected to the computer by USB, it is detected.

21

AV.io 4K User Guide Install the AV.io Config tool

22

AV.io 4K User Guide Update firmware using the AV.io Config tool

Update firmware using the AV.io Config tool

When new firmware is available, you can load this firmware onto your AV.io 4K using the AV.io Config tool
and the steps below. If you register your product and agree to be notified of product updates, you’ll
receive an email when there is an firmware update available for download.

Attempting to update firmware while running virtual machines will result in firmware upgrade
failure. For updates to persist after power cycling, please allow 5 seconds before
disconnecting or restarting device.

To update firmware using the AV.io Config tool:

1. If you haven't already done so, download and install the AV.io Config tool. See Install the AV.io

Config tool.

2. Download the firmware update file from the Epiphan website, as described in your firmware
update notification email or discussion with your vendor.

3. Connect your AV.io 4K device to your computer, laptop or notebook.

4. Open the AV.io Config tool.

5. Select your AV.io 4K device from the list under the Devices heading.

23

AV.io 4K User Guide Update firmware using the AV.io Config tool

If your AV.io 4K device is not displayed, press the Refresh icon to refresh the list of connected
devices.

6. Using the diagram below, check the current firmware version of your AV.io 4K. If it is the same
version as the new firmware you downloaded, there is no need to do the firmware update.

7. Click the Firmware tab

8. Click the folder icon to navigate to the saved location of the firmware, and click Update to update
your video grabber to the selected firmware; an update bar appears and displays the progress of
the update.

Do not disconnect your AV.io 4K at any point during the update process! Doing so may cause
irrevocable errors and/or permanently damage the device.

24

AV.io 4K User Guide Update firmware using the AV.io Config tool

9. When the update is finished the progress bar turns green and displays “Update Completed” (Note
the firmware update will not be automatically reflected in the Devices list unless the Refresh icon is
clicked). You may now safely disconnect your AV.io 4K if needed.

When updating firmware on a Mac, the “Update Completed” text will not be displayed. The
firmware upgrade is complete when the progress bar fills the width of the AV.io Config
window and the window contents are no longer greyed out.

25

AV.io 4K User Guide Identifying the input resolution

Identifying the input resolution

The AV.io Config tool can help you figure out exactly what information your video source is sending. Plug
in the source and select your device. The UI detects information about the source and presents it at the
bottom of the window.

The line tells you what connector the video source is using, the exact resolution of the source
(1920×1080p), and the frame rate the source is outputting (60 fps), and the color model (RGB or YCrCb in
these examples).

26

AV.io 4K User Guide Configure settings using AV.io Config tool

Configure settings using AV.io Config tool

Epiphan’s AV.io Config tool gives advanced users the ability to change several settings to their video
capture experience. The settings that can be changed include: Re-numerate input signal resolution, aspect
ratio preservation and performance mode. For settings to persist after power cycling, please allow 5
seconds before disconnecting or restarting device. See Advanced Settings for more details.

To change the configurable settings with the AV.io Config tool:

1. If needed, install the AV.io Config tool. For details specific to your OS, see Install the AV.io Config

tool.

2. Connect your AV.io 4K device to your computer, laptop or notebook.

3. Open the AV.io Config tool.

4. Select your AV.io 4K device from the list under the Devices heading.

If your video grabber is not displayed, press the Refresh icon to refresh the list of connected
devices.

27

AV.io 4K User Guide Configure settings using AV.io Config tool

5. Click the Settings tab; the settings page appears.

6. Enable or disable the individual settings by clicking each checkbox according to your needs, then
click Apply. See Advanced Settings for a description of each setting.

7. Disconnect and then reconnect the grabber.

28

AV.io 4K User Guide Advanced Settings

Advanced Settings

The AV.io Config tool allows you to change several settings to make changes to your video capture
experience if necessary. Most users won’t need to use this utility for anything other than firmware
updates, but advanced users may find these tweaks help them get the most out of their AV.io 4K.

These options include:

l

Use input signal resolution

l

Preserve aspect ratio

l

Performance mode

The option Audio selector for multichannel inputs does not apply to AV.io 4K.

Use input signal resolution (disabled by default)

There are two key descriptors used in the process of video capture using a UVC-based device:

Extended Display Identification Data (EDID): The EDID describes to the video source, video player or
computer which standard video formats (resolutions, frame rates, etc.) are supported by the capture
device as video input.

UVC Descriptor: The UVC describes to the capture host computer which formats are available at the
capture device USB port.

AV.io 4K does not enforce a direct relationship between the input and output signals. The list of EDID and
UVC descriptions are identical so that if the input and output formats are the same, the signal can pass
through without scaling. However, if input and output are set to different formats, AV.io 4K will
automatically upscale or downscale video to the format requested as output by the capture software.

The Use Input Signal Resolution option allows you to use a video format that is not included on the
EDID or UVC descriptors. When Use Input Signal Resolution is selected in the AV.io config tool, the input
signal format is added to the UVC descriptor, which allows a 1:1 capture from the input video source. If
the program you are using is compatible with the signal, you can capture your source in its original
format.

For example, if your video resolution was 1680×1200, a resolution which is not on the EDID or UVC
descriptor list, normally you would have to select the closest possible resolution from the provided output
descriptor list in your capture application, and then AV.io 4K would automatically scale the video up or
down to that format. However, if you select the Use Input Signal Resolution option, your capture
application's list will have 1680×1200 as an option for output format.

There are two scenarios in which this feature will not perform as expected.

29

AV.io 4K User Guide Advanced Settings

1. Not all third-party applications are able to support custom resolutions. AV.io 4K will send the
custom resolution to the application, but if it is unable to use the resolution, the application will
override any AV.io 4K custom capture settings.

2. In a Windows environment, due to restrictions set by Microsoft’s Windows Hardware Quality Labs
certification, most graphics adapters or drivers will not output resolutions not included in the EDID
file of the connected display device. In the scenario where a resolution that is not included in the
AV.io 4K standard resolution is requested, the Graphics adapter and driver will apply the resolution
requested and then upscale it to AV.io 4K’s default resolution. This means the Use input signal
resolution feature will not add a custom resolution to the UVC descriptor and the capture software
will be limited to the pre-defined resolutions.

Outside of these restrictions, the feature is recommended in any scenario where you wish the resolution
of your captured video to be identical to the original video source.

Preserve aspect ratio (enabled by default)

When enabled, your AV.io 4K preserves the aspect ratio of your input signal by adding black bars to the
sides or top and bottom of the frame (only for cases when the application using the signal requests a
frame size with a different aspect ratio). For example, with this option enabled, a 4:3 input signal gets
black bars added to the sides of the image when viewed in an application that requests a 16:9 aspect
ratio. With this option disabled, the 4:3 image is instead stretched to fit the full 16:9 size.

Performance mode (enabled by default)

When enabled, your AV.io 4K enters and exits system suspend mode (i.e. sleep) faster by disabling
support for the Suspend/U3 USB power state. This means AV.io 4K starts working again faster after your
computer wakes from a system suspend state, at the cost of increased power consumption. Disabling this
setting is ideal in situations where power consumption needs to be monitored, such as battery
preservation in laptops.

Now that you've learned what these configuration settings do, you may want to Configure settings using

AV.io Config tool or Update firmware using the AV.io Config tool.

30

AV.io 4K User Guide Set custom resolution user modes

Set custom resolution user modes

The AV.io Config tool gives users the ability to specify custom resolutions. You can make use of up to
three at one time, so you don't have to worry about changing the list every time you change which source
you have connected. For settings to persist after power cycling, please allow 5 seconds before
disconnecting or restarting device.

To change the custom resolutions with the AV.io Config tool:

1. If needed, install the AV.io Config tool. For details specific to your OS, see Install the AV.io Config

tool.

2. Connect your AV.io 4K device to your computer, laptop or notebook.

3. Open the AV.io Config tool.

4. Select your AV.io 4K device from the list under the Devices heading.

If your video grabber is not displayed, press the Refresh icon to refresh the list of connected
devices.

31

AV.io 4K User Guide Set custom resolution user modes

5. Click the User modes tab; the User modes page appears.

6. To create a custom resolution, click the check box for one of the user modes. The grayed-out area
becomes open for changes.

7. Select the text box labeled Width, erase the number that is currently in the box, and type out the
width of the custom resolution you wish to use. Then do the same for the resolution height in the
text box labeled Height.

8. Click Apply; The custom resolution you defined will now be added to the list of output resolutions
that you are allowed to select from the settings menu from the third-party application of your
choice.

32

AV.io 4K User Guide Set custom resolution user modes

9. If needed, you may follow the same process for User mode 2 and User mode 3. If all three are
checked and applied, all three custom resolutions selected will appear in the list of resolutions. You
may change the definition of any of these three resolutions at any time.

There are two scenarios in which this feature will not perform as expected.

1. Not all third-party applications are able to support custom resolutions. AV.io 4K will send the
custom resolution to the application, but if it is unable to use the resolution, the application will
override any AV.io 4K custom capture settings.

2. In a Windows environment, due to restrictions set by Microsoft’s Windows Hardware Quality Labs
certification, most graphics adapters or drivers will not output resolutions not included in the EDID
file of the connected display device. In the scenario where a resolution that is not included in the
AV.io 4K standard resolution is requested, the Graphics adapter and driver will apply the resolution
requested and then upscale it to AV.io 4K’s default resolution. This means the User modes feature
will not add the custom resolutions to the UVC descriptor and the capture software will be limited
to the pre-defined resolutions.

Outside of these restrictions, the feature is recommended in any scenario where you wish to use a
custom output resolution.

33

AV.io 4K User Guide Appendices

Appendices

The following appendices are included in this section:

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Troubleshooting

l

Limitations and known issues

l

Releases and features

34

AV.io 4K User Guide Troubleshooting

Troubleshooting

Use the follow table for help if you are experiencing problems or unexpected behavior from your AV.io
4K.

Symptom(s) Action(s) to resolve

(Windows only) When in the config tool press
Device not detected after interrupted firmware
update

Applications cannot open the capture card when a
custom UVC mode is set

F12 to enter firmware recovery mode, then

select a firmware file and click update to forcibly

reflash the capture card.

Please make sure that the card is connected via

USB 3.0 for all modes to be valid; only low frame

rate modes are valid when connecting via USB

2.0

Affecting all operating systems

Symptom(s) Action(s) to resolve

1) Optimize performance by using an Intel USB

host controller.

2) Use your application to change the color

Frame rates lower than 30 fps at 4K resolutions

Affecting Windows

Symptom(s) Action(s) to resolve

Incorrect input resolutions detected

space you are using. At 4K resolutions, NV12 and

I420 (4:2:0) are available at 15, 23.97, 24, 25,

29.97, or 30 fps, and YUY2 (4:2:2) is available at

5, 10, 15, or 20 fps.

If using Windows 8.1 or 10 with VLC Media

Player 2.2.1, downgrade to an earlier version of

VLC or use a different capture application, such

as Adobe FMLE.

Not able to capture UHDresolutions at 30 fps when
using VLC

VLC does not support the NV12 (4:2:0)

colorspace. 4K must be captured in either the

YUY2 (4:2:2) colorspace, which will reduce the

35

AV.io 4K User Guide Troubleshooting

frame rate to 20 fps, or I420 (4:2:0) which will

allow you to capture at speeds of up to 30 fps.

If using Windows 8.1 or 10 with VLC Media

Player 2.2.1, downgrade to an earlier version of

VLC or use a different capture application, such

Audio artifacts are present (popping, missing audio,
poorly encoded audio, etc).

Captured video file displays black screen when
opened.

as Adobe FMLE.

OR

If using Windows 8.1 or 10 with Skype for

Business, use a different capture application,

such as Adobe FMLE.

If capturing on Windows 8.1 using Windows

Movie Maker with your AV.io 4K connected to

an Etron EJ188H USB 3.0/2/0 host controller,

switch to a different capture application,

connect to a different USB port, or upgrade to

Windows 10.

If capturing on Windows 8.1 using Windows

Camera with your AV.io 4K connected to a
Recorded file does not have audio.

Firmware update fails

Affecting Mac

Symptom(s) Action(s) to resolve

Recorded file does not have audio.

Texas Instruments TSub USB 3.0 controller,

switch to a different capture application (such as

VLC Media Player) or upgrade to Windows 10.

If updating on a computer running Windows 8.1

or 10 with your AV.io 4K connected to an Etron

3.0 host controller, perform the firmware

update on another computer (without an Etron

USB host controller) or using another USB port

on the same computer. Note that USB 2.0 can be

used for firmware updates.

If using VLC Media Player 2.2.1, downgrade to

an earlier version or use a different capture

application, such as Quicktime.

Quicktime crashes when using a frame grabber to

This issue is with the Operating System itself,

36

AV.io 4K User Guide Troubleshooting

and affects all brands of video grabbers.

Quicktime is able to show a preview of the

recording, but then sometimes crashes as soon
record video in MacOS 10.12

Affecting Ubuntu

Symptom(s) Action(s) to resolve

Video cannot be resumed if stopped during a Skype
call.

as the recording starts. This problem can be

circumvented by selecting the Maximum Quality

Recording option in the Quicktime drop-down

menu.

If capturing on Ubuntu 14.04 LTS with your

AV.io 4K connected to an Etron EJ168A USB 3.0

controller, switch to a different USB port or

simply avoid stopping the Skype call. If it is not

possible to stop the Skype call or if it stops

accidently, disconnect and reconnect the

device.You may need to restart the video call.

Affecting Chromebook

Symptom(s) Action(s) to resolve

If capturing using Chromebook Apps

Clipchamp and WebRTC on Google Chrome OS

AV.io 4K is not detected as a valid audio device.

v43.0.2357.125 (64 bit), use a different

Chromebook app to capture both video and

audio, such as Screencastify or MediaCore

Capture.

37

AV.io 4K User Guide Limitations and known issues

Limitations and known issues

This section includes known issues or limitations that affect functionality or usability. It also has ways that
you can work around these limitations.

Affecting Asmedia USB3.0 controller ASM3142

l

There is an issue that presents as an audio problem when using this USB3.0 controller

o

Workaround: Update the driver for the USBcontroller

Affecting systems with an AMDRyzen 7 CPU

l

There is an issue that presents as an audio problem when using older drivers

o

Workaround: Update the chipset drivers for your CPU.

Affecting all operating systems

l

UVC-314: With the exception of the first capture after system reboot, the very first captured frame
is always green.

o

Workaround: Remove the green frame in post-production editing. If streaming the captured
video, begin streaming after the initial green frame has already been captured.

l

UVC-451: When using an Eltron EJ198 USB 3.0 host controller via USB 3.0 cable, several error
messages might appear. These should not affect the functionality of the device.

o

Workaround: If the problem does affect functionality, a different USB 3.0 host controller
must be used.

l

UVC-438: When capturing from a source at 720p, 50 fps will occasionally detect as 51 fps, and when
capturing at 1600×1200, 60 fps will occasionally detect as 61 fps.

o

Workaround: None necessary. This often occurs due to inherent inaccuracies in rounding
decimal point fps rate to whole numbers. The reading is still accurate to your expected rate.

l

UVC-346: When capturing from a source with a 23.98p, 29.97p or 59.94i signal, frame rate
occasionally dips before returning to its original capture rate.

o

Workaround: Set your source frame rate to a different value, such as 30 or 60 fps.

l

UVC-576: The grabber does not capture video from monitors with resolutions of 1920×1080p at
144Hz or higher.

o

Workaround: Resolutions of 1920×1080p at 144Hz exceed the hardware limits of the
grabber. There is no workaround.

Affecting Windows

38

AV.io 4K User Guide Limitations and known issues

l

UVC-270: Windows 10: Sometimes, Windows 10 will not recognize the grabber properly when
connected by a Fresco FL1100 USB 3.0 controller.

o

Workaround: Press the refresh icon to refresh the device list or unplug and reconnect the
USB. If neither of these work, a different USB 3.0 host controller might be required.

l

UVC-390: Windows 8.1: On rare occasions (< 5% of the time), captured video has a small vertical
fluctuation(of a few pixels) or small artifacts in the lower right quadrant of the screen.This is
noticeable right from the beginning of capture.

o

Workaround: Start capturing a few moments before your recording or streaming event and
check vertical position and the lower right quadrant of the captured image. If any issues are
noticed, disconnect and re-connect AV.io 4K’s USB 3.0 cable to the capture computer.

Affecting Mac

l

Your grabber works best with systems that are running the latest version of the Mac OS. If your
system is running an older version and you experience issues with your grabber, we recommend
that you update your system to the latest Mac OS.

l

UVC-613: VLC doesn't play audio for video that is captured using AV.io 4K when connected to a USB

2.0 port on the Mac.

o

Workaround: Use another media player such as QuickTime.

l

UVC-450: Device does not boot when connected to Mac USB 3.0 port with USB 2.0 cable.

o

Workaround: Wait for 20-30 seconds. If device sill does not boot, it will be necessary to use
the USB 3.0 cable.

Affecting Ubuntu

l

UVC-454: When saving settings, device does not seem to save changes.

o

Workaround: The most likely cause is caching. After saving changes, wait 10-15 seconds
before rebooting, turning off or unplugging your device.

l

UVC-601: The grabber doesn't capture audio and video when using an AMD Ryzen™ 3.0 USB host
controller on Ubuntu.

o

Workaround: A different USB 3.0 host controller must be used.

39

AV.io 4K User Guide Releases and features

Releases and features

This section outlines the features introduced with AV.io 4K firmware releases.

Release 3.1.0 features

l

I420 Color space

The I420 and YV12 color spaces give increased functionality at 4K resolutions, ensuring that AV.io 4K is
compatible with a greater number of third-party softwares. Read more details in the Resolutions, aspect

ratios, and capture rates and Technical specifications sections.

l

New default resolutions

Several new default output resolutions were added, namely 1920×1200, 2048×1024, 2560×1440,
2560×1600 and 3200×1800. Read more details in the Resolutions, aspect ratios, and capture rates and

Technical specifications sections.

l

Use input signal resolution button

Previous versions of AV.io Config software have allowed for you to pass through the resolution of your
input source as the resolution of the output source, but 3.1.0 has some updates on how this works. See

Advanced Settings for more details.

l

Custom resolution creation

You can now create a list of up to three custom resolutions that can be used as output formats. You can
add these in the Set custom resolution user modes tab of the AV.io Config software.

l

Significant changes to limitations, known issues and troubleshooting

Many changes have been made since the last firmware release for AV.io 4K. There have been lots of
improvements to the efficiency and functionality. See Limitations and known issuesand Troubleshooting
for more details.

40

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AGREEMENT, RELATING TO THE EPIPHAN HARDWARE PRODUCTS, SOFTWARE, DOCUMENTATION AND/OR
RELATING TO ANY SERVICES PROVIDED TO YOU BY LICENSOR (INCLUDING ITS AFFILIATES AND ITS AND THEIR
LICENSORS, SUPPLIERS, SUBCONTRACTORS, RESELLERS AND DISTRIBUTORS) IN RELATION TO THE EPIPHAN
HARDWARE PRODUCTS, SOFTWARE AND/OR DOCUMENTATION, EXCEED THE LICENSE FEES PAID BY YOU FOR
THE SOFTWARE.

NOTWITHSTANDING ANY OTHER PROVISION IN THIS AGREEMENT, NEITHER LICENSOR NOR ANY OF ITS
AFFILIATES OR ITS OR THEIR LICENSORS, SUPPLIERS, SUBCONTRACTORS, RESELLERS AND/OR DISTRIBUTORS
SHALL HAVE ANY LIABILITY TO YOU OR ANY OTHER PERSON OR ENTITY WHATSOEVER IN RESPECT TO ANY
DIRECT, INDIRECT, RELIANCE, INCIDENTAL, SPECIAL, PUNITIVE, EXEMPLARY OR CONSEQUENTIAL DAMAGES,
INCLUDING, BUT NOT LIMITED TO, LOSS OF REVENUE OR PROFIT, LOSS OF OR DAMAGE TO DATA, BUSINESS
INTERRUPTION, LOSS OF DATA, REPLACEMENT OR RECOVERY COSTS, OR OTHER COMMERCIAL OR ECONOMIC
LOSS, ARISING FROM OR RELATING TO ANY INFORMATION AND/OR DATA THAT MAY BE PROCESSED BY OR
MADE AVAILABLE USING ANY EPIPHAN HARDWARE PRODUCT AND/OR SOFTWARE OR ARISING FROM OR
RELATING TO ANY THIRD-PARTY SERVICE THAT MAY BE ACCESSIBLE USING ANY EPIPHAN HARDWARE
PRODUCT AND/OR SOFTWARE.

THE DISCLAIMER OF REPRESENTATIONS, WARRANTIES AND CONDITIONS AND LIMITATION OF LIABILITY
CONSTITUTE AN ESSENTIAL PART OF THIS AGREEMENT. YOU ACKNOWLEDGE THAT, BUT FOR THE DISCLAIMER
OF REPRESENTATIONS, WARRANTIES AND CONDITIONS AND LIMITATION OF LIABILITY, NEITHER LICENSOR
NOR ANY OF ITS AFFILIATES OR ITS OR THEIR LICENSORS, SUPPLIERS, RESELLERS OR DISTRIBUTORS WOULD
GRANT THE RIGHTS GRANTED IN THIS AGREEMENT.

7. Term and Termination: This Agreement shall continue for as long as You use the Software; however, it may be

terminated sooner as provided in this Section 7. You may terminate this Agreement by destroying all copies of the
Software and Documentation under Your control and providing certification of such destruction to Licensor or by
returning the Software to Licensor. Licensor may terminate this Agreement immediately by providing You with
written notice if: (a) You are in material breach of any provision of this Agreement, which breach, if capable of being
cured, is not cured within thirty (30) days after Licensor gives You written notice thereof; or (b) You have committed a
non-curable material breach of this Agreement. Upon termination You shall destroy all copies of the Software and
Documentation. In addition to this Section, the Sections entitled Definitions, Disclaimer of Warranties, Limitation of
Liability, Title, Indemnities, High-Risk Activities, Intellectual Property, and General shall continue in force even after
any termination of this Agreement. No termination of this Agreement will entitle You to a refund of any amounts paid
by You to Licensor or any reseller or distributor or affect any obligations You may have to pay any outstanding
amounts owing to Licensor or any reseller or distributor. Upon any termination of this Agreement, Your license to the
Software and Documentation will terminate and You shall destroy all copies of the Software and Documentation
under Your control and certify such destruction to Licensor.

8. Support and Updates: This Agreement does not grant You the right to any updates or enhancements of the
Software or the right to receive any technical support for the Software. Such updates and other technical support
services, if available, may be purchased separately from Licensor or one of Licensor’s resellers or distributors. Use of
any updates or enhancements to the Software provided pursuant to any technical support You may procure from
Licensor or one of Licensor’s resellers or distributors shall be governed by the terms and conditions of this
Agreement. Licensor reserves the right at any time not to release or to discontinue the release of any Software and to
alter prices, features, specifications, capabilities, functions, licensing terms, release dates, general availability or other
characteristics of the Software.

9. Title: All right, title, and interest (including all intellectual property rights) in, to, and under the Software (including
all copies thereof) shall remain with Licensor and its licensors.

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10. Indemnities: You shall indemnify, defend and hold Licensor, its affiliates, its and their licensors, suppliers,
subcontractors, resellers and/or distributors and all of the directors, officers, employees of all of the foregoing
(collectively the “Indemnified Parties”) harmless from and against any damages, losses, liabilities, expenses, costs,
claims, demands, actions, suits and/or proceedings incurred by the Indemnified Parties as a result of (i) Your use of
the Epiphan Hardware Products, Software and/or Documentation, (ii) any use of the Epiphan Hardware Products,
Software and/or Documentation on Your behalf, (iii) the use of the Epiphan Hardware Products, Software and/or
Documentation by anyone to whom You give the Epiphan Hardware Products, Software and/or Documentation,
and/or (iv) the use of the Epiphan Hardware Products, Software and/or Documentation on behalf of anyone to whom
You give the Epiphan Hardware Products, Software and/or Documentation, including, without limitation, in all of the
foregoing cases, any damages, losses, liabilities, expenses, costs, claims, demands, actions, suits and/or proceedings
arising from or relating to any information and/or data that may be processed by or made available using any
Epiphan Hardware Product and/or Software or arising from or relating to any Third-Party Service that may be
accessible using any Epiphan Hardware Product and/or Software (collectively, each matter falling within any of the
foregoing, a “Claim”), including, without limitation, indemnifying, defending and holding the Indemnified Parties
harmless from and against any settlements agreed by You in connection with any Claims and/or any damages, costs
or other amounts (including reasonable attorneys' fees) awarded to a third party against any of the Indemnified
Parties by a court or tribunal of competent jurisdiction in respect to any Claim. If You do not defend in a timely
manner against or resist a Claim after notice from Licensor, Licensor shall be entitled to investigate, defend,
compromise, settle, or otherwise dispose of the Claim, and incur costs in connection therewith, at Your expense, in
such manner as Licensor deems in its best interests until a reasonable time after You comply with its obligations
under this Section 10. You shall not enter into a settlement of any Claim without the Licensor’s written consent unless
such settlement is solely for monetary payment by You and contains an express, complete, unconditional release of
all of the Indemnified Parties and which does not impose any obligations or restrictions on any of the Indemnified
Parties.

11. High-Risk Activities: The Software and Epiphan Hardware Products are not fault-tolerant and are not designed,
manufactured or intended for use in or in conjunction with on-line control equipment in hazardous environments
requiring fail-safe performance, such as in the operation of nuclear facilities, aircraft navigation systems, air traffic
control, or direct life support machines. Licensor, its licensors, suppliers, subcontractors, resellers and distributors
specifically disclaim any express or implied representations, warranties and/or conditions for such uses.

12. U.S. Government End-Users: The Software and Documentation are each a "commercial item" as that term is
defined at FAR 2.101, consisting of "commercial computer software" and "commercial computer software
documentation" as such terms are defined in FAR 12.212, and are provided to the U.S. Government only as
commercial end items. Government end users acquire the rights set out in this Agreement for the Software, Epiphan
Hardware Products and Documentation consistent with: (i) for acquisition by or on behalf of civilian agencies, the
terms set forth in FAR12.212; or (ii) for acquisition by or on behalf of units of the Department of Defense, the terms
set forth in DFARS 227.7202. Use of the Epiphan Hardware Products, Software and Documentation is further
restricted by the terms and conditions of this Agreement and the applicable commercial purchase agreement for the
Epiphan Hardware Products. For the purposes of any applicable government use, the Epiphan Hardware Products,
Software and Documentation were developed exclusively at private expense, and are trade secrets of Epiphan
Systems Inc. for the purpose of any Freedom of Information legislation or any other disclosure statute, regulation or
provision.

13. Export Restrictions: The Epiphan Hardware Products, Software, Documentation and related information are
subject to export and import restrictions. By downloading, installing, or using the Software, Epiphan Hardware
Products, Documentation and/or related information, You are representing and warranting that You are not located
in, are not under the control of, and are not a national or resident of any country to which the export of the Epiphan
Hardware Products, Software, Documentation and/or related information would be prohibited by the laws and/or
regulations of Canada or the United States. You are also representing and warranting that You are not an individual
to whom the export of the Epiphan Hardware Products, Software, Documentation or related information would be
prohibited by the laws and/or regulations of Canada or the United States. You shall comply with the export laws and

45

regulations of Canada and the United States that are applicable to the Epiphan Hardware Products, Software,
Documentation and related information and You shall also comply with any local laws and/or regulations in Your
jurisdiction that may impact Your right to export, import, or use the Epiphan Hardware Products, Software,
Documentation or related information, and You represent and warrant that You have complied with any such
applicable laws and/or regulations. The Epiphan Hardware Products, Software, Documentation and related
information shall not be used for any purposes prohibited by export laws and/or regulations, including, without
limitation, nuclear, chemical, or biological weapons proliferation. You shall be responsible for procuring all required
permissions for any subsequent export, import, or use of the Epiphan Hardware Products, Software, Documentation
or related information.

14. Intellectual Property: Epiphan, Epiphan Systems and Epiphan Video are tradenames, trademarks or registered
trademarks of Epiphan Systems Inc. in certain countries. All Licensor product names and logos are trademarks or
registered trademarks of Epiphan Systems Inc. in certain countries. All other company and product names and logos
are trademarks or registered trademarks of their respective owners in certain countries. You shall not disclose,
transfer or otherwise provide to any third party any portion of the Software, except as expressly permitted in this
Agreement.

15. General: This Agreement is the entire agreement between You and Licensor in respect to the Software,
superseding any other agreements or discussions, oral or written. The terms and conditions of this Agreement shall
prevail over any pre-printed terms on any quotes, orders, purchase orders, or purchase order acknowledgements,
and shall prevail over any other communications between the parties in relation to the Software. You may not assign
this Agreement whether voluntarily, by operation of law, or otherwise without Licensor's prior written consent.
Licensor may assign this Agreement at any time without notice. The failure of a party to claim a breach of any term of
this Agreement shall not constitute a waiver of such breach or the right of such party to enforce any subsequent
breach of such term. If any provision of this Agreement is held to be unenforceable or illegal, such decision shall not
affect the validity or enforceability of such provisions under other circumstances or the remaining provisions of this
Agreement and such remaining provisions shall be reformed only to the extent necessary to make them enforceable
under such circumstances. This Agreement shall be governed by the laws of the Province of Ontario and the laws of
Canada applicable therein. No choice or conflict of laws rules of any jurisdiction shall apply to this Agreement. You
shall only be entitled to bring any action or proceeding arising out of or relating to this Agreement, the Epiphan
Hardware Products, Software, Documentation or any services provided in respect to the Epiphan Hardware Products,
Software and/or Documentation in a court in Ottawa, Ontario, Canada, and You consent to the jurisdiction of such
courts for any such action or proceeding. You waive all rights that You may have or that may hereafter arise to
contest the jurisdiction of such courts for any action or proceeding brought by You. You hereby waive any right You
may have to request a jury trial with respect to any action brought by You in connection with this Agreement, the
Epiphan Hardware Products or Software or any services provided in respect to the Epiphan Hardware Products or
Software. The application of the United Nations Convention on Contracts for the International Sale of Goods to this
Agreement is expressly excluded.

Environmental Information

The equipment that you bought has required the extraction and use of natural resources for its production. It may
contain hazardous substances that could impact health and the environment. In order to avoid the dissemination of
those substances in our environment and to diminish the pressure on the natural resources, we encourage you to
use the appropriate take-back systems. Those systems will reuse or recycle most of the materials of your end life
equipment in a sound way. The crossed-out wheeled bin symbol invites you to use those systems. If you need more
information about collection, reuse and recycling systems, please contact your local or regional waste administration.
You can also contact us for more information on the environmental performance of our products.

Important Safety Warnings

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WARNING:This product has no user-serviceable parts and the battery used in this device is not replaceable. Do not
attempt to disassemble. Return the device for service.

CAUTION, RISK OF ELECTRIC SHOCK: This device may have multiple AC power cords installed. All power sources shall
be disconnected before servicing to avoid shock hazard.

ATTENTION:Cet appareil ne contient aucun composant pouvant être entretenu ou réparé par l'utilisateur. En cas de
panne, retourner l'appareil pour réparation.

ATTENTION, RISQUE DE CHOC ÉLECTRIQUE:Cet appareil peut être équipé de multiples cordons d'alimentation en
courant alternatif. Pour placer cet appareil hors tension, débrancher tous les cordons d'alimentation sans exception.

FCC Compliance Statement

47 CFR Section 2.1077 Compliance Information

Unique identifier: AV.io 4K

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference

2. This device must accept any interference received, including interference that may cause undesired operation.

Responsible party (US contact):

Epiphan Video
459 HamiltonAvenue, Suite 301
Palo Alto, CA
94301, USA

www.Epiphan.com

FCC CAUTION

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:

– Reorient or relocate the receiving antenna.

– Increase the separation between the equipment and receiver.

– Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

– Consult the dealer or an experienced radio/TV technician for help.

Innovation, Science and Economic Development Canada:

This device complies with ICES-003 of the ISED rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may cause undesired operation.

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Cet appareil est conforme à la norme ISED NBM-003 pour les appareils radio agréés. Son fonctionnement est sujet
aux deux conditions suivantes:

(1) le dispositif ne doit pas produire de brouillage préjudiciable, et

(2) ce dispositif doit accepter tout brouillage reçu, y compris un brouillage susceptible de provoquer un
fonctionnement indésirable.

CE Compliance Statement

Marking by the symbol indicates compliance of this device with the applicable directives of the European
Community and meets or exceeds the following technical standards:

Directive 2014/30/EU - Electromagnetic Compatibility

Directive 2011/65/EU - RoHS, restriction of the use of certain hazardous substances in electrical and electronic
equipment

Other Jurisdictional Issues

Epiphan makes no representation that its products or information in this document or its web site are appropriate or
available for use in your jurisdiction. Those who choose to access the Epiphan web site or use Epiphan products do so
on their own initiative and are responsible for compliance with local laws, if and to the extent local laws are applicable

Submissions to Epiphan and Affiliated Servers

Any information, including but not limited to remarks, suggestions, ideas, graphics, or other submissions,
communicated to Epiphan through their Epiphan web site is the exclusive property of Epiphan. Epiphan is entitled to
use any information submitted for any purpose, without restriction (except as stated in Epiphan's Privacy Statement)
or compensation to the person sending the submission. The user acknowledges the originality of any submission
communicated to Epiphan and accepts responsibility for its accuracy, appropriateness, and legality.

Third Parties and Links to Third-Party Web Sites

Mention of non-Epiphan Systems Inc. products or services on their website, or this document site is for informational
purposes and does not constitute an endorsement or recommendation.

This document may contain links to non-Epiphan web sites. These links are provided to you as a convenience, and
Epiphan is not responsible for the content of any linked web site. Any outside web site accessed from the Epiphan
web site is independent from Epiphan, and Epiphan has no control over the content of that web site. In addition, a
link to any non-Epiphan web site does not imply that Epiphan endorses or accepts any responsibility for the content
or use of such a web site.

In no event shall any reference to any third party or third party product or service be construed as an approval or
endorsement by Epiphan of that third party or of any product or service provided by a third party.

Miscellaneous

It is the user's responsibility to ascertain whether any information downloaded from the Epiphan web site or other
websites is free of viruses, worms, trojan horses, or other items of a potentially destructive nature.

Enforcement of Terms and Conditions

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These Terms and Conditions for use of this document and the associated Epiphan Product are governed and
interpreted pursuant to the laws of the province of Ontario, Canada, notwithstanding any principles of conflicts of
law.

All disputes arising out of or relating to these Terms and Conditions shall be finally resolved by arbitration conducted
in the English language in Ottawa, Ontario, Canada under the commercial arbitration rules of Canada. The parties
shall appoint as sole arbitrator a retired judge who presided in the province of Ontario. The parties shall bear equally
the cost of the arbitration (except that the prevailing party shall be entitled to an award of reasonable attorneys' fees
incurred in connection with the arbitration in such an amount as may be determined by the arbitrator). All decisions
of the arbitrator shall be final and binding on both parties and enforceable in any court of competent jurisdiction.
Notwithstanding this, application may be made to any court for a judicial acceptance of the award or order of
enforcement. Notwithstanding the foregoing, Epiphan shall be entitled to seek injunctive relief, security, or other
equitable remedies from any court of competent jurisdiction.

If any part of these terms is unlawful, void, or unenforceable, that part will be deemed severable and will not affect
the validity and enforceability of the remaining provisions. Epiphan may, at its sole discretion and without notice,
revise these terms at any time by updating this posting.

Copyright © 2022 Epiphan Systems Inc.

All Rights Reserved.

© and ™ 2022, Epiphan Systems, Inc.

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