Technical 

Video & Whiteboard

Video Conference and Whiteboard

Operating Systems Supported
Windows Vista/7/8/10
iPad or iPhone: iOS 11 or later required for audio/video
Android phone or tablet (any version)
MacOS
Linux
Chrome OS (Chromebooks)
The Groupworld HTML5 client should run on any browser that fully supports HTML5 (currently, Chrome, Firefox, Edge and Safari on all devices). Opera should work with all features except screen sharing.

Internet Connection/Bandwidth
In order to use video or desktop sharing, all users require a minimum of 256kbps of both upload and download bandwidth, but for optimal performance we recommend 1024kbps download speed and 512kbps upload if using screen sharing and/or video. Check your bandwidth here.

Firewalls
The new HTML5 Groupworld client uses a Websocket connection through port 443, so there should generally not be any issues with firewalls. The old Groupworld plugin (not currently used) and the native iOS/Android apps open a TCP/IP connection to port 9174 on the server. Most home firewalls (including the built-in Windows firewall) do not block outgoing connections, so you should not normally have any problems. However if you have a restrictive firewall which blocks outbound connections, you may need to open up TCP/IP port 9174 outbound if using either the app or the plugin. Groupworld uses a peer-to-peer WebRTC PeerConnection for audio/video data when there are two users in the room. If this is blocked by the firewall, it tries to use a WebRTC TURN relay, and if that is blocked it falls back to the non-WebRTC audio/video which is transmitted via the Groupworld server.

Browsers
Any browser which supports HTML5 features will work with Groupworld. However some browsers do not support all HTML5 features.

Chrome: all features supported
Firefox: all features supported
Opera: all features except screen sharing
Edge (chromium): all features supported
Edge (pre-chromium): not supported
Safari 11 or later: all features supported
Internet Explorer: not supported

Hardware
1Ghz CPU (but 2Ghz with dual-core CPU recommended for optimal performance when using screen sharing), with 512MB RAM.

For audio: users must have a headset if there are more than 2 users in the room, or if WebRTC is not enabled for the room.

Graphics tablets such as Wacom and Huion are supported (if you experience any problems, turn off Windows Ink / TabletPC features as described in the FAQ).

For video: users must have a webcam (including built-in webcams).

Extra note
This document is adopted and edited from Groupworld’s original document.

If you cannot solve the audio/video problem, try rebooting your computer and/or using a different web browser (Firefox, Safari and Chrome generally work best). Also make sure your web browser is updated to the latest version. You can also contact us and we will be happy to help you troubleshoot if the steps below do not resolve the issue.

Chrome webcam/microphone permissions
Firefox webcam/microphone permissions
Safari webcam/microphone permissions

General Audio Troubleshooting

  • If Groupworld does not pick up any audio from your microphone, try plugging in a headset. Some laptop internal microphones do not work with browser-based WebRTC technology, even though they work with Skype.
  • Echos are caused by accoustic feedback (audio coming out of a user’s loudspeakers into their microphone). Generally echoes should not be a problem because WebRTC (which we use for audio/video) has built-in echo cancellation. If you experience echoes and there are more than 2 users in the room, you should enable the “Janus Gateway” option for the room in the hosted Groupworld control panel, which will generally resolve the issue. If you still experience echoes (or if you experience echoes when only 2 users are in the room), you can try using the firefox browser, which usually has better echo cancellation, or using headsets.
  • If you use a headset, make sure you plug in your headset before logging into Groupworld. (If you plug in your headset in after connecting to Groupworld and it isn’t working, try reloading the Groupworld conference room web page).
  • Make sure your headset is properly plugged in and working, and that you have given permission to the browser to use your microphone (see below for more details). Try playing a YouTube video to make sure you can hear it.
  • Try reloading the Groupworld web page, or using a different browser if you have problems. Chrome and Firefox work best.
  • When you speak, you should see a vertical red bar move up and down at the right-hand side of your video window. If you don’t see this, it means that Groupworld is not picking up your microphone. If the red bar is not moving when you speak, try reloading the page and make sure you click Allow when the browser asks to use your microphone. (If you don’t see that permissions prompt, try using the Firefox browser).
  • When the other user speaks you should see a red volume meter bar move up and down in their video window. If you see the red bar light up but don’t hear anything, it probably means that your headphones aren’t working. Try reloading the page and check your headphones are set up correctly. (Check to see if you can listen to a YouTube video through them).

Chrome microphone/webcam permissions

Chrome will pop up a permissions window when you log into Groupworld:

Simply click “Allow” to give permission to use your microphone. You only need to do this once, and Chrome will remember in future.

 

To change your microphone settings in Chrome (assuming you have already given or denied permission to use your microphone), click on the little icon at the right-hand side of the url bar that looks like a video camera:

This will allow you to select a different microphone (if your computer has more than one). If the video camera icon has a red X through it, clicking it will allow you to give permission to Groupworld in future (you will need to reload the page afterwards).

If you previously denied permission to allow microphone/webcam access, you can reset the chrome audio/video permissions.

Firefox microphone/webcam permissions

Firefox will pop up a permissions window when you log into Groupworld:

Simply click “Share selected devices” to give Groupworld permission to use your microphone and/or camera. You can choose “Always share” from the drop-down menu (to the right of the “Share selected devices” button) if you always want to give permission.

To change your microphone settings in Firefox (assuming you have already given or denied permission to use your microphone), click on the little icon at the left-hand side of the url bar that looks like a video camera:

This will allow you to select a different microphone (if your computer has more than one), or give permission if you previously didn’t give permission.

Safari microphone/webcam permissions

Safari will pop up a permissions window when you log into Groupworld:

Simply click on “Allow” to give Groupworld permission to use your microphone and/or camera. If you don’t see this popup, go to “Safari->Settings for this website” and check the Camera and Microphone permissions.

Extra note
This document is adopted and edited from Groupworld’s original document.

 

1. What browsers/devices do I need and how much bandwidth is required?
Our whiteboard can conference room is currently running on Safari, Chrome (including Chromebooks), Firefox and Edge without requiring a plugin, including iPad, iPhone and Android tablets/phones. The minimum bandwidth when using video or screen sharing is 256kbps upload and download, but 512kbps recommended. For further details, see the System Requirements page.

2. Can I use a graphics tablet with your whiteboard?
Yes, you can use any graphics tablet if it works as a pointer device. Wacom and Huion graphics tablets work well with Groupworld, and many of our online tutoring customers use these graphics tablets.

3. Why do I hear an echo of my own voice when using the voice conferencing?
This usually means that another user has loudspeakers which are feeding back into their microphone.

4. I get delays/breakups with the sound/video.
Generally this indicates a poor internet connection or insufficient bandwidth. Please contact us if you continue having problems.

5. I’m experiencing crashes/slowness/lost connections.
Please check the following:
i) Check out system requirements to make sure your system is supported.

ii) Try temporarily disabling browser toolbars, virus checkers and security software in case they are interfering with your whiteboard or conference room (normally this should not be the case, so please let us know if you do experience any incompatibilities with other software).

iii) Bring up task manager (press the ctrl+alt+delete keys in Windows, or go to Applications->Utilities->Activity Monitor on MacOS) to see if another process is using all of your computer’s cpu or memory.

iv) Check the quality of your internet connection using our Ping Test page. If you experience more than 5-10% data loss, performance will be significantly affected.

6. Why is there lag and/or missing pen strokes when using a Wacom or Huion tablet on Windows?
Try unticking “Use Windows Ink” in the Wacom settings, or unticking “Support TabletPC” in the Huion settings. Also, if you experience jagged lines with Wacom, try changing from mouse to pen mode.

7. Why does the text get cut off where it says “there are x other users connected” and other places?
This generally means that you have changed to the larger fonts in Windows, so Windows is giving us fonts that are 25% larger pixel size than we are asking for. To fix this problem on Windows 7, right-click on your Windows desktop, choose “screen resolution”, then “make text and other items larger or smaller”.

8. Why can’t I select/move/delete uploaded images?
If you drag+drop the image onto the whiteboard, or paste it, you will then be able to select it and move, resize or delete it. (We do this because typically uploaded images are likely to be full-screen, and you won’t want them to move).

9. Extra note
This document is adopted and edited from Groupworld’s original document.

Email

Have more questions?

Info

Get In Touch Now!

Email Address

contact@e2atutoring.com.au

Location

Level 10 & 11,
66 Clarence Street,
Wynyard, Sydney,
NSW, 2000
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