You can modify this demo page to setup your own branded landing page. If you are using Sakai, Moodle, Drupal, Joomla, Wordpress or other systems that already have a BigBlueButton integration , then installing the integration provides the easiest way to enable your users to access BigBlueButton sessions. Alternatively, if you have a bit of programming skills, you can create your own set of room by modifying this Demo Page on a BigBlueButton server.
You will find demo3. When modifying demo3. The best approach is to see how others have integrated and adapt their code to your integration. The BigBlueButton server does not support persistent or permanent sessions where users can leave and return the next day, for example, and have their slides and chat messages persist.
This is by design. Why is this the case? As an analogy, the BigBlueButton server works like a web server. The web server responds to the request and, when finished, it forgets about the request and moves onto the next. Once a room is created the create request succeeded , users can join the session and interact within the session.
When using a screen reader, we recommend using Internet Explorer or the bit version of FireFox. The bit versions of FireFox and Chrome make it harder for screen readers to interact with the BigBlueButton client. BigBlueButton supports live closed captioning. A stenographer can join the session and provide a live caption stream to all users you can have multiple stenographers simultaneously providing captioning in multiple languages.
Later on, when BigBlueButton processes the recording, it will convert the closed captions to subtitles in the playback. You should be able to share your screen using Chrome, FireFox, and the newest version of Edge based on Chromium. BigBlueButton uses LibreOffice 4. The conversion to PDF will remove any animations visual or audio , links, and embedded content. If you upload a PDF document, all your fonts will come through with the document. In other words, for best results, if possible always create a PDF and upload it for conversion.
You can click the phone icon twice — once to leave and a second time to rejoin — to try joining the audio again. To lower the threshold, switch to the root account, then edit. Save the file, then do sudo bbb-conf --restart to restart BigBlueButton.
In BigBlueButton, we use the built-in acoustic echo cancellation, so in most cases, you should not hear any echo from remote users. In any event, we always recommend that you have your remote users use a headset with microphone.
This will ensure the best audio in a session. If a remote user is using a laptop with a built-in microphone, you should not hear an echo. However, if two remote users are using laptops with built-in microphones and neither is using a headset and both are sitting close to each other close enough for the microphone in one laptop to pickup the audio from the speakers in the other laptop , then you will hear an echo.
The reason is the built-in echo cancellation only works with the audio coming from the host laptop — the audio coming from the second laptop will be picked up as an external audio source. If a student is causing echo, the best way to solve this problem, if you are logged in as a moderator, is to mute the user by clicking the microphone icon to the left of their name.
Overall, the best solution is to ask all users to use a headset — this will ensure no background noise or echo. Both these browsers support web real-time communications WebRTC audio. This additional parameter instructs the BigBlueButton server to record the session and make a recording available through subsequent getRecordings calls. When instructed through the API call, the BigBlueButton server will record all of the meeting, from the time the first person joins to when the last person leaves.
A meeting may also end when it reaches its duration or the end is called on the meeting. BigBlueButton records all activity in the presentation, chat, webcams, and desktop sharing for playback.
In BigBlueButton, the audio from a recorded session is encoded into Vorbis , an open source audio format that is not patent-encumbered. BigBlueButton will playback the webcams from a session using the WebM container, which, thanks to Google, provides a high-quality open source video codec VP8. If you want to support playback of recordings for Safari mobile users on iOS, see Enable playback of recordings on iOS.
The file sizes are for a one hour session. When a recorded session ends, BigBlueButton archives all the raw content, then runs the recording scripts to create a publish format presentation. A one hour webcam stream at the default resolution x is 20M.
A one hour desktop sharing stream is M. For playback, the audio, webcams, and desktop share are processed into a single playback file WebM VP8 Codec. In Chrome, the audio playback component shows only the current time index for the playback.
To see the overall length of the session, you can scrub to the end of the audio after the audio file has loaded. In FireFox, the audio playback component shows both the current time index and total time of the audio file. The ingest and processing scripts, written in Ruby, process the recorded events and media to create a playback option.
The default scripts, called presentation. By modifying presentation. When looking to download a recorded session, most expect a single link to download the video file. In contrast, BigBlueButton does not create a video file for playback.
Video files for a three hour lecture can get very large. The result is the source playback files are very small and can be hosted on any web server.
The drawback is there will be a pause for the browser to download all this content, but, once downloaded, there is no more load on the web server. BigBlueButton does not store any content — such as chat, shared notes, uploaded slides, annotations, etc. When you end a meeting and start a new one, you have a new meeting with a clean slate.
Starting every meeting as a new meeting is by design. A web server does not hold state between requests other than logging the request. This makes the architecture of the web server much simpler and easier to extend: the web server can focus on serving as many requests as possible in parallel as efficiently as possible. In a similar manner, the BigBlueButton server focuses on running many parallel meetings as efficiently as possible.
If the meeting was recorded, then a separate process will later convert the saved meeting into a recording. In contrast, if the BigBlueButton server did store state from past meetings, that storage would have to be maintained, updated, and migrated when the server is upgraded. There would be privacy issues as well — how to keep the stored state, and how to administer it for privacy requests this would likely require a separate interface.
Overall, the design of the BigBlueButton would be more complex. Also, load balancing such as with scalelite would be more difficult as every BigBlueButton server would share a central object store for all the past meetings. The API does allow for a front-end to pre-upload a presentation, which gives the moderator the ability to customize meetings with the same presentation.
In short, this stateless approach makes the overall architecture of BigBlueButton much simpler, and simple is good for focusing on speed, stability, maintainability of code, privacy, and focusing resources on building out features important to instructors.
You can checkout the latest code from Git. We recommend you setup a Ubuntu Once you have the development environment setup, you can mount the VM drive to Windows. If you are just working on the client side, you need to edit the file config. This will enable you to launch and test the client directly from the Flex environment, bypassing the Web component of BigBlueButton. This is related to localization. Before you launch your client, you need to first separately run the ant localization task.
This task is included in your client directory in the build. It needs to run separately because otherwise Java will run out of memory if all tasks are ran together. You can find instructions on how to get Ant working with Flex here. See create meeting call. This is done using the built-in API demos. To resolve connection problems, see question below. See audio is not working for how to resolve this. Furthermore, we remote users have a minimum upstream bandwidth of 0.
You should see Cpu0, Cpu1, etc. This setup may also affect audio quality. Make sure the second server is external and uses the ISP internet connection. This will give you a rough estimate of the maximum transfer rates. Check with your ISP if these transfer rates are low. There are many Unix commands to monitor traffic, one of which is bmon.
At this point, the audio for all users will start to degrade as there is insufficient bandwidth for new users or any common operations such as uploading slides. For getting a better estimate of the amount of bandwidth required for your users, see this FAQ entry. We recommend that users have 0.
Of course, these are not hard numbers, and BigBlueButton will certainly work with less bandwidth, but if your clients have bandwidth in this range, they should experience good audio. If these numbers are much less than 0. One quick check is to ask users to turn off any file transfer they have in the background such as bittorrent clients and run the test again.
Many times, issues with audio quality can be solved with better network connectivity. Check if the user transmitting audio is on a wireless connection.
Have the switch to a wired connection, if possible, or move closer to the wireless base station. In general, if all users are encountering audio problems, the issue might be with the BigBlueButton CPU being overloaded or the bandwidth to the BigBlueButton server is saturated.
If a specific user is having poor audio quality i. Furthermore, if possible, if you are in the session with them and can verify their audio is poor, have them cross-check using demo. Specifically, have that user login to one of the sample rooms , join them in the room, and check their audio again. Both these browser support web real-time communications framework. To keep the presentation windows in sync, when you upload a presentation landscape or portrait , the size of the presentation window becomes a ratio of the presentation.
You and the viewer may have different sized windows, due to the sizes of your respective monitors, but you both always see the same content. Monitors are landscape, so presenting a landscape document makes good use of the screen space. You can verify this by using its value to interactively make an API call from your browser. To do this, enter the following URL in your browser:.
So login to your BigBlueButton server and enter the following command:. If you get back a blank document or a server error, then this is the reason why you are getting the above exception.
These recommendations are crucial since you can consider anything performing better as fast internet with anything lower than this as low internet connectivity. There are various instances in which you can consider 1 Mbps as a fast connection. Examples include when sending emails or browsing Reddit threads as a user. However, a connection below the broadband performance is sure to limit your functionality in some instances.
Whether to get a Mbps connection or lower depends on the number of individuals and whether the users access multiple devices simultaneously, for instance, uploading files while watching a Netflix show. Therefore, a high-speed connection is essential.
If you want internet connections that make your online activity enjoyable, selecting high-speed internet plans allows you to support your activities the way you like. A Mbps internet connection is the sweet spot for most averagely-sized households and couples with immense connection demands. You can even stream HD video without an issue, and this performance supports multi-streaming unless various users are accessing HD videos on over four devices simultaneously.
A Mbps internet speed is also suitable for playing and downloading games without much of a hustle. Download and upload speeds are also incredible, allowing you to get a good uploading bandwidth. An important consideration as you seek your internet plan is the price point. While Mbps offers fast speeds, it is typically available only in smaller internet bundles for most internet providers see the best providers here.
Therefore, you will likely spend more on a Mbps internet service provision, even if you get the same price as you would on the relatively limited Mbps service. Consider getting a fiber or cable internet, and refrain from DSL if possible to avoid deterioration and slackening of your gaming experience. For instance, you will need the following download speeds when working with the following popular work from home apps:Zoom: 1.
As you consider an internet service, the things to keep in mind include:Download speed, which is the pace at which the given internet connection downloads online data. That is the rate at which you can stream a movie, download files, acquire information, browse websites, and more. Upload speed refers to how fast your internet service can upload content online.
That is, how smoothly you can email others, host webinars, among others. The EA Desktop app is currently in Beta, so only some players have access. Find out more in our article. If you're having trouble with any of these steps for EA Desktop, you can switch back to Origin while we're still in Beta testing.
It might seem like your computer has no programs open, but there may still be some running in the background. Your gaming mouse, graphics card, or browser might have software that starts running as soon as you boot up your computer.
Your computer can slow down if you have a lot of apps running at the same time. This can result in slow frame rates or laggy gameplay, and it can lead to more serious issues like limited connectivity or game crashes. If your games are running slowly or have lag, try closing as many background apps as you can before launching EA Desktop or your game to help improve your gaming. The steps to add exceptions can vary, depending on the security software you use.
Check with the manufacturer of your firewall and anti-virus programs to see how to add EA Desktop as an exception. If you've had issues booting up your games or using the EA Desktop app, make sure to fully close these or similar kinds of programs:.
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