3 ms·

From the Zoom system requirements: 1:1 call * 600kbps (up/down) for high-quality video * 1.2Mbps (up/down) for 720p HD video * Receiving 1080p HD video requ

From the Zoom system requirements: 1:1 call * 600kbps (up/down) for high-quality video * 1.2Mbps (up/down) for 720p HD video * Receiving 1080p HD video requires 1.8Mbps (up/down) * Sending 1080p HD video requires 1.8Mbps (up/down) Group call * 800kbps/1.0 Mbps (up/down) for high-quality video * For gallery view and/or 720p HD video: 1.5Mbps/1.5Mbps (up/down) * Receiving 1080p HD video requires 2.5Mbps (up/down) * Sending 1080p HD video requires 3.0Mbps (up/down) https://support.zoom.us/hc/en-us/articles/201362023-System-requirements-for-Windows-macOS-and-Linux#:~:text=800kbps%2F1.0%20Mbps%20(up%2F,3.0Mbps%20(up%2Fdown) https://support.zoom.us/hc/en-us/articles/201362023-System-r...

saltyshake 6y ago
yes, but most households have more than 1 person living there and sharing the connection for their own Zoom or YouTube.
toyg 6y ago
Now multiply that by 2.53 (average US household size in 2020) and you'll see why 3 Mbps are probably not enough.
- notyourwork 6y ago
  Exactly my point! Consider a group of college students living together or an average family and we start to realize that its not about a single activity but the multiple parallel needs for the same shared pipe that causes congestion. I find it surprising that so many seem to disagree that this is ridiculously low.
cozzyd 6y ago
I'm surprised the screen-sharing bandwidth required is so low... I guess it must be quite low framerate? Because some of us have giant monitors...
- 1-more 6y ago
  It's usually pretty easy to compress because you're so often sharing text on a solid background. I'm figuring that there's gotta be a higher bitrate for sharing, say, a movie or video game than sharing my jira board.
- grenoire 6y ago
  Unless you're streaming video games (high FPS, as you noted the inverse, and significantly larger portions of the screen being refreshed, usually the entire one) the 'deltas' are relatively small. Combined with low frame rates, your usual business presentation occupies a small share of the bandwidth.
  - cozzyd 6y ago
    on the other hand, I'm mostly staring blankly at my webcam with a static background. though admittedly the webcam sensor is a lot noisier :) but yeah, I suppose the update rate of most screen sharing is pretty low.
cm2187 6y ago
I am all for high bandwidth, but it blows my mind that people have the expectation to do video conferencing at 1080p quality. It is bluray quality, which was only available 10years ago in offline / disk format. It is great if we can but I wouldn't call it a requirement.
- ubercow13 6y ago
  It's not really blu-ray quality though. You could have a 4K video conference at 1Mbps if you so wished, but it wouldn't look nice. Likewise a 1080p Zoom stream isn't really anything like a blu-ray video.
  - cm2187 6y ago
    The quality may not be there but the pixel count is. I agree most webcams are not precise enough to give a real 1080p quality + bandwidth constraints. But you would be better off with a fluid 720p.

saltyshake 6y ago

yes, but most households have more than 1 person living there and sharing the connection for their own Zoom or YouTube.

toyg 6y ago

Now multiply that by 2.53 (average US household size in 2020) and you'll see why 3 Mbps are probably not enough.

notyourwork 6y ago
Exactly my point! Consider a group of college students living together or an average family and we start to realize that its not about a single activity but the multiple parallel needs for the same shared pipe that causes congestion. I find it surprising that so many seem to disagree that this is ridiculously low.

cozzyd 6y ago

I'm surprised the screen-sharing bandwidth required is so low... I guess it must be quite low framerate? Because some of us have giant monitors...

1-more 6y ago
It's usually pretty easy to compress because you're so often sharing text on a solid background. I'm figuring that there's gotta be a higher bitrate for sharing, say, a movie or video game than sharing my jira board.
grenoire 6y ago
Unless you're streaming video games (high FPS, as you noted the inverse, and significantly larger portions of the screen being refreshed, usually the entire one) the 'deltas' are relatively small. Combined with low frame rates, your usual business presentation occupies a small share of the bandwidth.
- cozzyd 6y ago
  on the other hand, I'm mostly staring blankly at my webcam with a static background. though admittedly the webcam sensor is a lot noisier :) but yeah, I suppose the update rate of most screen sharing is pretty low.

cm2187 6y ago

I am all for high bandwidth, but it blows my mind that people have the expectation to do video conferencing at 1080p quality. It is bluray quality, which was only available 10years ago in offline / disk format. It is great if we can but I wouldn't call it a requirement.

ubercow13 6y ago
It's not really blu-ray quality though. You could have a 4K video conference at 1Mbps if you so wished, but it wouldn't look nice. Likewise a 1080p Zoom stream isn't really anything like a blu-ray video.
- cm2187 6y ago
  The quality may not be there but the pixel count is. I agree most webcams are not precise enough to give a real 1080p quality + bandwidth constraints. But you would be better off with a fluid 720p.