Using the video conferencing feature on a low bandwidth
Among the main challenges that both teachers and students face in e-learning are issues related to their Internet connectivity. This is especially felt when the video conferencing feature is the primary mode of teaching and learning, making its use more intensive.
If a teacher experiences a connectivity issue during a session, the session could end automatically especially if it is set to occur only under the supervision of a host/moderator (teacher). When the system sees that the teacher has been disconnected from the server, it prompts the session to end, so all participants are removed from the current session.
To minimize the effect of such issues, we suggest the following:
- Keep the number of cameras that are used in a particular session at the minimum. It would be better if only the teacher shares his/her camera when discussing a lesson, while the students may turn their cameras on only when reciting or presenting. This will save the bandwidth of both the teacher and the students.
- Turn the camera off when sharing your screen. Sharing your screen already consumes much bandwidth, not to mention that your microphone also transmits audio using the same bandwidth, thereby affecting your device's total upload speed. To reduce lags or any noticeable delay, it would be wise to turn off your camera so that most of your bandwidth will be devoted to what you are presenting.
- Ask the students to unmute themselves only when speaking. As mentioned in the second point, audio transmission also uses bandwidth. To save as much bandwidth as possible, minimize the number of input devices that could affect the connection speed.