Epiphan AV.io SDI™
User Guide
September, 2022
1.0
UG109-06
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Terms and Conditions
This document, the Epiphan web site, and the information contained therein, including but not limited to the text, videos, and
images as well as Epiphan System Inc.’s trademarks, trade names, and logos are the property of Epiphan Systems Inc. and
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Epiphan, Epiphan Video, Epiphan Systems, Epiphan Systems Inc., and Epiphan logos are trademarks or registered
trademarks of Epiphan Systems Inc., in certain countries. All Epiphan product names and logos are trademarks or 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 ITS WEB SITE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION AND RECOMMENDATIONS
ARE BELIEVED TO BE ACCURATE AT TIME OF WRITING BUT ARE PRESENTED WITHOUT WARRANTY OF ANY
KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY
PRODUCTS.
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UNDER NO CIRCUMSTANCES SHALL EPIPHAN BE LIABLE FOR ANY INCIDENTAL, SPECIAL, CONSEQUENTIAL,
EXEMPLARY OR OTHER INDIRECT DAMAGES THAT RESULT FROM THE USE OF, OR THE INABILITY TO USE, THIS
PRODUCT OR THE INFORMATION CONTAINED IN THIS DOCUMENT OR PROVIDED ON EPIPHAN’S WEB SITE, EVEN
IF EPIPHAN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN NO EVENT SHALL EPIPHAN’S TOTAL
LIABILITY TO YOU FOR ALL DAMAGES, LOSSES, AND CAUSES OF ACTION RESULTING FROM YOUR USE OF THIS
PRODUCT, WHETHER IN CONTRACT, TORT (INCLUDING, BUT NOT LIMITED TO, NEGLIGENCE) OR OTHERWISE,
EXCEED THE AMOUNTS YOU PAID TO EPIPHAN DURING THE MOST RECENT THREE-MONTH PERIOD IN
CONNECTION WITH AMOUNTS WHICH YOU PAID FOR USING THIS PRODUCT.
INFORMATION AND DOCUMENTS, INCLUDING PRODUCT SPECIFICATIONS, PROVIDED IN THIS DOCUMENT OR
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INFRINGEMENT, TITLE, SATISFACTORY QUALITY OR FITNESS FOR A PARTICULAR PURPOSE.
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Thank you for choosing EpiphanVideo!
At EpiphanVideo, 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 EpiphanVideo website to get the most recent product specifications and additional information about
this product.
Warranty
All EpiphanVideo 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:
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E-mailing suppo[email protected]
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Live chat via the link on our support site
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Phone toll free at 1-877-599-6581 or call +1 613-599-6581
Be sure to include as much information about your problem as possible, including:
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Problem description
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Details of the video or audio source (type, resolution, refresh rate, etc.)
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Product serial number
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Your operating system and version number
Copyright © 2022 Epiphan Systems Inc. All Rights Reserved
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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 SDI.
What's fixed
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Images captured at 1920×1080p 30 fps using AV.io SDI display properly now when viewed on Windows
10 in VLC player 2.2.6 and in Pearl-2.
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Registering the device
Why should I register my AV.io SDI?
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.
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Table of contents
Terms and Conditions ii
Thank you for choosing EpiphanVideo! 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 6
Technical specifications 7
System requirements 8
Capture 9
How AV.io SDI works 10
Set up your AV.io SDI for capture 11
Resolutions, aspect ratios, and capture rates 12
Automatic image scaling & audio resampling 13
Third-party applications 14
Configuration 15
Install the AV.io Config tool 16
Update firmware using the AV.io Config tool 19
Identifying the input resolution 22
Configure settings using AV.io Config tool 23
Advanced Settings 25
Set custom resolution user modes 26
Appendices 29
Troubleshooting 30
Limitations and known issues 33
Releases and features 35
Software license 36
AV.io SDI User Guide Getting Started
Getting Started
Welcome and thank you for buying Epiphan Video’s AV.io SDI!
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!
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AV.io SDI User Guide Product overview
Product overview
To use AV.io SDI, 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.
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AV.io SDI User Guide What's in the box?
What's in the box?
Your AV.io SDI 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 SDI video grabber Your video capture device!
SDI cable (0.5 m)
Connects an SDI source to your
AV.io SDI.
USB 3.0 cable (1 m / 3
ft)
The USB 3.0 cable connects
your AV.io SDI video grabber
with your computer’s USB 3.0 or
2.0 port.
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AV.io SDI User Guide Hardware
Hardware
This section describes the physical features of your AV.io SDI, including diagrams and hardware feature
descriptions.
Topics covered include:
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Hardware diagrams
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Indicator LED details
Hardware diagrams
Your AV.io SDI device includes inputs, 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:
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AV.io SDI 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.
From the operating system's UVC drivers, the application will receive the AV.io SDI 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 SDI 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 USB2.0:
Blue LED means USB 3.0 Green LED means USB 2.0
Connection type/LED color USB 3.0 connection USB 2.0 connection
Solid red
Firmware update in progress
AV.io SDI initializing
Firmware update in progress
AV.io SDI initializing
Solid green N/A USB 2.0 connection active
Blinking green N/A
Video and/or audio transferring
successfully
Solid blue USB 3.0 connection active N/A
Blinking blue
Video and/or audio transferring
successfully
N/A
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AV.io SDI User Guide Quick start
Quick start
Setting up your AV.io SDI device to capture live video and audio content couldn’t be easier!
Before you begin the connection process, you will require:
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An SDI video source (with or without audio)
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Your capture card device
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A capture desktop computer, laptop or notebook
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A USB cable (included with purchase) to connect your AV.io SDI to your capture computer
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An SDIcable (included with purchase) to connect your video source to your AV.io SDI.
Once you have these things ready to go, you can now begin the simple process of hooking up your AV.io SDI so
you can start capturing!
To connect your AV.io SDI for capture:
1. Connect your AV.io SDI device to your video source
2. Connect your AV.io SDI 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 SDI 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!
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AV.io SDI User Guide Technical specifications
Technical specifications
Technical specifications for AV.io SDI are included in the table below.
Connectors
BNC style SDIconnector
USB standard B type
Input SDI (3G-SDI, HD-SDI, SD-SDI) with BNC-style connector
Audio (SDI) Input
3.5mm analog audio
16-bit and 24-bit PCM encoded audio at 48 kHz
Audio (UAC) output 16-bit 48 kHz stereo audio
Capture latency
Near-zero latency, although certain third-party applications may contribute
delay
HDCP Compliance
High-bandwidth digital content protection (HDCP) protected content cannot
be captured
LED LED indicates the status of AV.io SDI
OS support
(32-bit and 64-bit)
Windows 7, Windows 8.1, Windows 10
Mac OS X 10.10 and up
Linux distribution with kernel 3.5.0 or higher
USB support USB 3.0 and 2.0
Input Resolution Standard and non-standard resolution from 640x360 up to 1920×1080
Supported output
resolutions
(at 15, 23.97, 24,
25, 29.97, 30, 50,
59.94 or 60 fps)
640×360 640×480
960×540 1280×720
1920×1080
Dimensions 3.54″ × 2.36″ × 0.91″ (90 mm × 60 mm × 23 mm)
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AV.io SDI User Guide System requirements
System requirements
System requirements are the barebones technical essentials your computer needs to work with AV.io SDI.
System requirements to use AV.io SDI include:
Video source A 3G-SDI, HD-SDI or SD-SDI video source.
Video capture
workstation
Any computer (laptop/desktop/other format) with:
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a compatible USB 3.0 host controller for SuperSpeed operation and
4K functionality (for maximum performance, an Intel USB 3.0 host
controller is needed); or,
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a USB 2.0 host controller (will limit maximum frame rate and
resolution support)
Video capture
workstation
operating system
Windows 7, Windows 8.1, Windows 10, and up
Mac OS X 10.10 and up
Linux distribution with kernel 3.5.0 or higher
Processor
frequency
Minimum recommended value: 2.4 GHz
RAM Minimum recommended value: 4 GB
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AV.io SDI User Guide Capture
Capture
Setting up your AV.io SDI device to capture live video content couldn’t be easier!
Before you begin the connection process, you will require:
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An SDI video source (with or without audio)
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Your capture card device
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A capture desktop computer, laptop or notebook
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A USB cable (included with purchase) to connect to your AV.io SDI to your capture computer
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An SDIcable (included with purchase)to connect your video source to your AV.io SDI.
Once you have these things ready to go, you can now begin the simple process of hooking up your AV.io SDI so
you can start capturing!
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AV.io SDI User Guide How AV.io SDI works
How AV.io SDI 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 SDI.
The application communicates with AV.io SDI and negotiates a 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 SDI, 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 SDI 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!
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AV.io SDI User Guide Set up your AV.io SDI for capture
Set up your AV.io SDI for capture
To connect your AV.io SDI for capture:
1. Connect your AV.io SDI device to your video source, ideally directly to the source, but some video sources
may require special adapters
2. Connect your AV.io SDI device to your desktop computer, laptop, or notebook
3. Open your favorite third-party application, select AV.io SDI 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!
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AV.io SDI 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 SDI outputs resolutions in commonly supported aspects ratios. The table below is a color-coded legend for
interpreting the table of product resolutions below it:
Aspect
Ratio
Common Use
4:3
Standard TV (NTSC/PAL) display and non-widescreen computer displays, SD-SDI
resolution
16:9
Widescreen (HD) TV displays (1080p, 1080i, 720p etc.), and 4K-capable displays
1.90:1
Digital Cinema Initiatives standard resolution for 4K or 2K video projection
AV.io SDI generates a list of the following possible resolutions for your capture application to select for output
display:
640×360 960×540 1920×1080
640×480 1280×720
Captured video content is output to your application at 15, 30, 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 SDI can output, just a list of common and tested resolutions.
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AV.io SDI 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 SDI automatically
scales your source to match the desired frame size. No user configuration required!
AV.io SDI also automatically performs audio resampling, meaning that no matter the bit depth or sampling
frequency of audio through an SDI audio source, AV.io SDI automatically resamples your audio so that your
application gets a consistent audio sample rate and bit depth, even if you change the video source.
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AV.io SDI User Guide Third-party applications
Third-party applications
AV.io SDI 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 SDI's use of UVC/UAC technology, there is no need
for driver installation. Just like a webcam, your AV.io SDI 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 SDI 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)
Windows Camera app
(with Windows 8.1 and Windows 10)
QuickTime
(with Mac OS X)
Popular applications available for download
Skype
Wirecast
QuickTime
Adobe FMLE VLC media player
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AV.io SDI User Guide Configuration
Configuration
Your AV.io SDI 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 SDI 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 SDI.
Advanced configuration options include:
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Preserve aspect ratio
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Performance mode
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Audio selector for multichannel inputs
Detailed instructions on how to use AV.io Config include:
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Install the AV.io Config tool
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Update firmware using the AV.io Config tool
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Identify input details using the AV.io Config tool
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Configure settings using AV.io Config tool
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Advanced Settings
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Set custom resolution user modes
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AV.io SDI 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 SDI and for advanced settings
changes.
You may install AV.io Config on the same computer(s) where you use AV.io SDI, 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 SDI Downloads page on
Epiphan’s web site.
https://www.epiphan.com/support/avio-sdi-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.
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AV.io SDI 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 SDI Downloads page on
Epiphan’s web site.
https://www.epiphan.com/support/avio-sdi-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.
5. Click Open.
6. AV.io Config starts! If you video grabber is connected to the computer by USB, it is detected.
Linux
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AV.io SDI User Guide Install the AV.io Config tool
1. Download the AV.io Config package under the Linux heading on the AV.io SDI Downloads page on
Epiphan’s web site.
https://www.epiphan.com/support/avio-sdi-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.
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AV.io SDI 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 SDI 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 SDI device to your computer, laptop or notebook.
4. Open the AV.io Config tool.
5. Select your AV.io SDI device from the list under the Devices heading.
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AV.io SDI User Guide Update firmware using the AV.io Config tool
If your AV.io SDI 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 SDI. 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 SDI at any point during the update process! Doing so may cause
irrevocable errors and/or permanently damage the device.
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 SDI if needed.
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AV.io SDI User Guide Update firmware using the AV.io Config tool
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.
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AV.io SDI 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).
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AV.io SDI 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, audio pair selection 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 SDI device to your computer, laptop or notebook.
3. Open the AV.io Config tool.
4. Select your AV.io SDI 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.
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AV.io SDI 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 SDI.
These options include:
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Preserve aspect ratio
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Performance mode
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Audio selector for multichannel inputs
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 SDI 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 SDI will automatically upscale or
downscale video to the format requested as output by the capture software.
Preserve aspect ratio (enabled by default)
When enabled, your AV.io SDI 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 SDI enters and exits system suspend mode (i.e. sleep) faster by disabling support for
the Suspend/U3 USB power state. This means AV.io SDI 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.
Audio selector for multichannel inputs (disabled by default)
Your AV.io SDI can capture one of the (up to) 8 audio channel pairs provided over SDI. Use this option to allow
your third party application to choose which audio pair to capture. By default, this is disabled and the first audio
pair is captured.
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.
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AV.io SDI 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 SDI device to your computer, laptop or notebook.
3. Open the AV.io Config tool.
4. Select your AV.io SDI 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.
26
AV.io SDI 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.
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AV.io SDI 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 SDI will send the custom
resolution to the application, but if it is unable to use the resolution, the application will override any AV.io
SDI 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 SDI
standard resolution is requested, the Graphics adapter and driver will apply the resolution requested and
then upscale it to AV.io SDI’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.
28
AV.io SDI User Guide Troubleshooting
Troubleshooting
Use the follow table for help if you are experiencing problems or unexpected behavior from your AV.io SDI.
Symptom(s) Action(s) to resolve
Device not detected after interrupted firmware update
(Windows only) When in the config tool press F12
to enter firmware recovery mode, then select a
firmware file and click update to forcibly reflash the
capture card.
Applications cannot open the capture card when a
custom UVC mode is set
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 Windows
Symptom(s) Action(s) to resolve
Incorrect input resolutions detected
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.
Audio artifacts are present (popping, missing audio,
poorly encoded audio, etc).
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.
OR
If using Windows 8.1 or 10 with Skype for
Business, use a different capture application, such
as Adobe FMLE.
Captured video file displays black screen when opened.
If capturing on Windows 8.1 using Windows Movie
Maker with your AV.io SDI 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.
Recorded file does not have audio.
If capturing on Windows 8.1 using Windows
Camera with your AV.io SDI connected to a Texas
Instruments TSub USB 3.0 controller, switch to a
different capture application (such as VLC Media
Player) or upgrade to Windows 10.
Firmware update fails
If updating on a computer running Windows 8.1 or
10 with your AV.io SDI connected to an Etron 3.0
30
AV.io SDI User Guide Troubleshooting
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.
Affecting Mac
Symptom(s) Action(s) to resolve
AV.io SDI is specified as the capture device in the
application, but capture occurs using a different device
connected to the computer (such as a web cam).
If using VLC Media Player 2.2.1, disconnect all
capture devices except AV.io SDI, downgrade to an
older version of VLC media player or use a different
capture application.
Recorded file does not have audio.
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
record video in MacOS 10.12
This issue is with the Operating System itself, and
affects all brands of video grabbers. Quicktime is
able to show a preview of the recording, but then
sometimes crashes as soon as the recording starts.
This problem can be circumvented by selecting the
Maximum Quality Recording option in the
Quicktime drop-down menu.
Video doesn't update (appears frozen) when using
AV.io SDI as the video source for Skype video calls.
Disconnect and reconnect AV.io SDI. If the problem
persists, use a different capture computer. This
problem appears to happen with regular web cams
as well.
Affecting Ubuntu
Symptom(s) Action(s) to resolve
Video cannot be resumed if stopped during a Skype
call.
If capturing on Ubuntu 14.04 LTS with your AV.io
SDI 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.
Video capture fails when the capture computer recovers
from sleep mode, even if capture was stopped prior to
sleep mode
If capturing on Ubuntu 15.04 with your AV.io SDI
connected to a Texas Instruments TUSB7320
USB 3.0 host controller, switch to a different USB
port or simply disconnect and re-connect AV.io
SDI’s USB 3.0 cable to the capture computer.
31
AV.io SDI User Guide Troubleshooting
Affecting Chromebook
Symptom(s) Action(s) to resolve
AV.io SDI is not detected as a valid audio device.
If capturing using Chromebook Apps Clipchamp
and WebRTC on Google Chrome OS
v43.0.2357.125 (64 bit), use a different
Chromebook app to capture both video and audio,
such as Screencastify or MediaCore Capture.
32
AV.io SDI 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 USB3.0 controller ASM3142
l
There is an issue that presents as an audio problem when using this USB3.0 controller
o
Workaround: Update the driver for the USBcontroller
Affecting systems with an AMDRyzen 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-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.
Affecting Windows
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 SDI’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.
33
AV.io SDI User Guide Limitations and known issues
l
UVC-613: VLC doesn't play audio for video that is captured using AV.io SDI when connected to a USB 2.0
port on the Mac.
o
Workaround: Use another media player such as QuickTime.
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.
34
AV.io SDI User Guide Releases and features
Releases and features
This section outlines the features introduced with AV.io SDI firmware releases.
Release 3.1.0 features
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 SDI. There have been lots of
improvements to the efficiency and functionality. See Limitations and known issuesand Troubleshooting for more
details.
35
36
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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
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shall comply with the export laws and 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
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 SDI
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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 HamiltonAvenue, 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.
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
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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
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.
