Webex's Participate Bandwith Requirements Using Webcam vs. Profile Pic

[kbaile2]

For Webex's meeting participants, would the participant's profile pic require the same bandwidth requirements if the participate used a video?  Why or Why not?  I am trying to understand if the bandwidth is really reduced if participants turn off video, but still has a profile pic that may require bandwidth.  Is there a significant difference in bandwidth requirements?

[Vaijanath Sonvane · Accepted solution]

Hi, 

Yes, there is significant difference in bandwidth requirement when video is turned ON and OFF. Each active thumbnail (profile picture) takes approximately 60-100 kb/s of bandwidth. If participant turns on video, depending on resolution it requires more bandwidth. 

Layer	Bandwidth Range
90p active thumbnail (each)	~60-100 kb/s
180p main video	125-200 kb/s
360p main video	470-640 kb/s
720p main video	900k-1.5 mb/s
Content sharing (sharpness, 1080p/5)	120k – 1.3 mb/s
Content sharing (motion, 720p/30)	900k – 2.5 mb/s

Please refer to below white paper which has more details. Specifically refer to Table 1, 2, 3 and 4 which will provide more details to your question.

https://www.cisco.com/c/en/us/products/collateral/conferencing/webex-meetings/white_paper_c11-691351.html 

[kbaile2 · Accepted solution]

I understand.  Thanks for the response. 

[Ashish Patel · Accepted solution]

The profile pic is a static image it’s not using as much bandwidth vs a live video call, if that’s what you’re asking. You may be able to see this in help menu and see your audio and video stats https://help.webex.com/en-us/nmghd9e/Check-the-Audio-and-Video-Statistics-of-Your-Cisco-Webex-Meeting When sending video vs not sending video. Turning off video will display their profile picture or avatar and will save bandwidth allowing for audio only as an option.

[kbaile2]

Good point. Thanks.

[kbaile2 · Accepted solution]

I understand.  Thanks for the response. 

[Vaijanath Sonvane · Accepted solution]

Hi, 

Yes, there is significant difference in bandwidth requirement when video is turned ON and OFF. Each active thumbnail (profile picture) takes approximately 60-100 kb/s of bandwidth. If participant turns on video, depending on resolution it requires more bandwidth. 

Layer	Bandwidth Range
90p active thumbnail (each)	~60-100 kb/s
180p main video	125-200 kb/s
360p main video	470-640 kb/s
720p main video	900k-1.5 mb/s
Content sharing (sharpness, 1080p/5)	120k – 1.3 mb/s
Content sharing (motion, 720p/30)	900k – 2.5 mb/s

Please refer to below white paper which has more details. Specifically refer to Table 1, 2, 3 and 4 which will provide more details to your question.

https://www.cisco.com/c/en/us/products/collateral/conferencing/webex-meetings/white_paper_c11-691351.html