How much bandwidth is used during a session?
The amount of bandwidth that GoTo Webinar uses during a session varies depending on the features that are being used. For example, screen sharing will use more bandwidth during a PowerPoint presentation with multiple slides than it will when a single image is being shown.
We recommend that you have at least 1 Mbps of bandwidth available if you plan to use all of the following features during a session. If you will have 25+ webcams in use, we recommend at least 3 Mbps of bandwidth. Less will still work, but may cause poor session performance whereas more available bandwidth will provide a superior experience.
You can estimate the amount of bandwidth a session will require using these data-usage averages:
- Computer audio (VoIP) — 0.1 Mbps (100 Kbps)
- Webcam sharing (HDFaces) — 0.7 Mbps (700 Kbps) to 2.5 Mbps, depending on number and size of webcams in use
- Screen sharing — 0.04 Mbps (40 Kbps) to 2.5 Mbps, depending on the size and rate of changes happening on screen
Tip: Both webcam and screen sharing will automatically reduce their usage (by reducing the frame rate, etc.) if the available bandwidth requires it.
Note: This is based on the ISP unit measurement standard for Data Transfer Rates (Bits). This is not to be confused with the unit measurement standard for Data File Size (Bytes). 8 Bits = 1 Byte.