multimedia:web_conferences_with_bigbluebutton:faq_about_bigbluebutton
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multimedia:web_conferences_with_bigbluebutton:faq_about_bigbluebutton [15:31 04. November 2022 ] – Stefanie Zegowitz | multimedia:web_conferences_with_bigbluebutton:faq_about_bigbluebutton [16:57 25. September 2024 ] (aktuell) – [In breakout rooms, students should use more than one slide to jointly create a presentation.] Hans-Ulrich Kiel | ||
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Since Google Chrome browser offers the best support for BBB on all operating systems (except Apple iOS), we recommend using Chrome or another Chromium-based web browser for BBB conferences. | Since Google Chrome browser offers the best support for BBB on all operating systems (except Apple iOS), we recommend using Chrome or another Chromium-based web browser for BBB conferences. | ||
+ | |||
+ | ==== Why is it not recommended to use Firefox? ==== | ||
+ | |||
+ | BBB is based on WebRTC. There are a few issues with the implementation in firefox which can negatively affect the quality of the conference: | ||
+ | * The volume of the microphone is not automatically regulated. Therefore, the audio transmission of individual participants can be either too loud or too quiet. | ||
+ | * Webcam images and audio transmission may not be in sync. | ||
+ | * Firefox always uses the default output device (speakers) of the operating system. It is not possible to manually set the output device. | ||
+ | * Images of presentations may lag. | ||
+ | * The quality of transmission is reduced when sharing your screen. | ||
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==== Which webcam do you recommend? ==== | ==== Which webcam do you recommend? ==== | ||
- | Current laptops are usually equipped with good webcams. However, when using a PC or external monitor, then a separate webcam is needed. The computing centre recommends the following Logitech webcams for individual work stations: | + | Current laptops are usually equipped with good webcams. However, when using a PC or external monitor, then a separate webcam is needed. The computing centre recommends the following Logitech webcams for individual work stations: |
Note that webcams for individual work stations are not sufficient for the use in meeting rooms. Please contact the computing centre for advice on how to best equip your meeting room with video conferencing technology. | Note that webcams for individual work stations are not sufficient for the use in meeting rooms. Please contact the computing centre for advice on how to best equip your meeting room with video conferencing technology. | ||
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==== Can I upload my own virtual background? ==== | ==== Can I upload my own virtual background? ==== | ||
- | From version 2.4, BBB offers virtual backgrounds for webcams. At present, these can only be provided centrally. They will occasionally | + | From version 2.6 of BBB, you can upload your own images to be used as a virtual background. This can be done by clicking on the white check mark next to the camera icon, scrolling to the right under the „Virtual background settings“ section and then selecting „Upload from device“. Uploaded images are stored in your web browser' |
- | + | ||
==== I would like to record my meeting/ | ==== I would like to record my meeting/ | ||
- | At present, it is not possible to record meetings or events on BBB. To record a lecture in a lecture hall, please use the Opencast system. To create your own lecture video using screen recording on a PC, the computing centre offers a license for Camtasia. See [[multimedia: | + | At present, it is not possible to record meetings or events on the BBB server at TU Clausthal. To record a lecture in a lecture hall, please use the Opencast system. To create your own lecture video using screen recording on a PC, the computing centre offers a license for Camtasia. See [[multimedia: |
- | ==== BBB does not initially display a slide ==== | + | ==== BBB does not initially display a slide. ==== |
- | When we switched to BBB version 2.4, we decided to hide the start-up slide. This is because most participants are already familiar with BBB. By clicking the presentation button {{: | + | When we switched to BBB version 2.4, we decided to hide the start-up slide. This is because most participants are already familiar with BBB. By clicking the presentation button {{: |
The start-up slide appears automatically for all participants when the presenter changes slides or zooms. | The start-up slide appears automatically for all participants when the presenter changes slides or zooms. | ||
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==== How can I change the layout of the BBB interface? ==== | ==== How can I change the layout of the BBB interface? ==== | ||
- | BBB version 2.4 introduced a choice of layouts. The default layout is the "Smart layout" | + | BBB version 2.4 introduced a choice of layouts. The default layout is the "Smart layout" |
+ | ==== When sharing my screen, the size of my webcam image is reduced. | ||
+ | Shared images are shown to the presenter in reduced size to avoid video loops and their resulting high data usage. If needed, they can be expanded to full size via the full screen icon {{: | ||
==== How many rooms can I create in BBB? ==== | ==== How many rooms can I create in BBB? ==== | ||
- | Each user can create | + | Via [[https:// |
- | + | ||
==== I am organising a larger event. How many participants can partake in BBB? ==== | ==== I am organising a larger event. How many participants can partake in BBB? ==== | ||
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==== Is it possible to get an exclusive server for a BBB event? ==== | ==== Is it possible to get an exclusive server for a BBB event? ==== | ||
- | When we started using BBB in 2020, it was not always very reliable and efficient. In addition, there was little experience with hosting larger events. Because of that, we had exclusive servers for important BBB events in a so-called VIP environment. Since then, BBB has significantly improved. In March 2022, we consolidated and unified the BBB server environment. We now have 12 equally strong BBB nodes across which all sessions are automatically distributed. Based on our utilization measurements over several months, we consider this environment to be sufficiently stable and efficient so that exclusive BBB servers are no longer needed. | + | When we started using BBB in 2020, it was not always very reliable and efficient. In addition, there was little experience with hosting larger events. Because of that, we had exclusive servers for important BBB events in a so-called VIP environment. Since then, BBB has significantly improved. In March 2022, we consolidated and unified the BBB server environment. We now have 6 equally strong BBB nodes across which all sessions are automatically distributed. Based on our utilization measurements over several months, we consider this environment to be sufficiently stable and efficient so that exclusive BBB servers are no longer needed. |
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- | ==== Firefox does not detect any output device (speakers) ==== | + | ==== Firefox does not detect any output device (speakers). ==== |
Firefox cannot automatically detect and switch output devices. It uses the default device of the operating system. If the output device of the operating system is correctly set up, then the audio output will work regardless of Firefox claiming that no device was found. However, we recommend using Google Chrome instead of Firefox. | Firefox cannot automatically detect and switch output devices. It uses the default device of the operating system. If the output device of the operating system is correctly set up, then the audio output will work regardless of Firefox claiming that no device was found. However, we recommend using Google Chrome instead of Firefox. | ||
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==== BBB uses a different audio device than intended. ==== | ==== BBB uses a different audio device than intended. ==== | ||
- | You can change audio devices by clicking the white check mark next to the speaker | + | You can change audio devices by clicking the white check mark next to the microphone |
Note that your default devices may be unintentionally changed due to the sequence in which they are switched on, reconnecting devices or driver updates. Therefore, we recommend to disable any unwanted devices in Windows via “manage audio devices”. | Note that your default devices may be unintentionally changed due to the sequence in which they are switched on, reconnecting devices or driver updates. Therefore, we recommend to disable any unwanted devices in Windows via “manage audio devices”. | ||
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==== How can I transfer images from a visualizer? ==== | ==== How can I transfer images from a visualizer? ==== | ||
- | If a PC has multiple video sources, such as a webcam and a visualizer, then it is possible for BBB to transmit two video images at the same time, up to a maximum | + | If a PC has multiple video sources, such as a webcam and a visualizer, then it is possible for BBB to transmit two video images at the same time. From BBB version 2.7, the function " |
- | ==== In breakout rooms, students should use more than one slide to jointly create a presentation ==== | ||
- | In breakout rooms, | + | ==== In breakout rooms, |
+ | From BBB version 2.7.13, different documents can be selected for each room when creating breakout rooms, which are then loaded onto the whiteboard. These documents can also have multiple pages. They must first be uploaded to the main room using the ‘+’ button. | ||
+ | From BBB version 2.6, it is possible to transfer the results from breakout rooms to the main room via PDF files. This option must be selected when creating breakout rooms. The PDF files are then available to the presenter via the plus button once the breakout rooms close. | ||
==== The playback of videos from the TU Clausthal video server does not work. ==== | ==== The playback of videos from the TU Clausthal video server does not work. ==== | ||
multimedia/web_conferences_with_bigbluebutton/faq_about_bigbluebutton.1667572295.txt.gz · Zuletzt geändert: 15:31 04. November 2022 von Stefanie Zegowitz