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Hourly Data Consumption of Popular Video Conferencing Applications – CableLabs

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To pinpoint which programs are consuming the most data, check your network usage with Activity Monitor on Mac or Task Manager in Windows. You should also limit high-bandwidth activities by others on your network, especially during meetings as this will affect the bandwidth available for your Zoom session.

Users in a meeting can easily disable all incoming video through in-meeting controls. This feature helps to preserve bandwidth for shared content, and to avoid mental fatigue from viewing multiple active video participants. This will only affect your view of the meeting, while others are unaffected and unaware. Be sure to stop screen sharing when you are done presenting.

Also, request that other attendees do the same. Or, rather than screen sharing, consider using online collaborative documents, such as Google Docs. This uses less data than streaming video while still allowing everyone to see changes in real time. If your connection is unstable, consider connecting to the meeting audio by phone instead of using the computer audio within the meeting. C loud recordings are directly transferred to the cloud so they do not need to be uploaded from your computer, hence saving you data.

This ensures that your device is getting the strongest possible WiFi signal from your router. You can also try moving closer to the router. In summary, we observed a more than 7X variation in the data consumption of video conferencing with a very limited exploration of just two variables — laptop and video conferencing application.

Notably, however, when data consumption was at its highest, it was of the same magnitude as the data consumption of an HD video stream. This is an area ripe for further research and study, both to more comprehensively explore these variables e. Andy Dolan Senior Security Engineer. Ann Finnie Global Communications Manager. Barry Ferris Senior Product Manager. CableLabs CableLabs.

Chad Riland Program Manager, Innovation. Chris Lammers Chief Operating Officer. Darshak Thakore Principal Architect. David Debrecht Vice President, Wireless. Debbie Fitzgerald Technology Policy Director. Eric Klassen Executive Producer. Greg Rutz. Greg White Distinguished Technologist. Jason Rupe Principal Architect. Jud Cary Deputy General Counsel. Karthik Sundaresan Distinguished Technologist. Kathi Jack Accounting Manager. Kelton Shockey Technology Policy Associate.

Kyle Haefner Senior Security Engineer. Luther Smith Director, Wireless Technology. Mario Di Dio Principal Architect. Martha Lyons Director of Market Development. Matt Schmitt Principal Architect. Michael Glenn VP of Cybersecurity.

Michelle Rousseau Head of Culture. Michelle Vendelin Director, Innovation Services. Omkar Dharmadhikari Wireless Architect. Paul Fonte Project Manager. Rahil Gandotra Senior Software Architect. Simon Krauss Deputy General Counsel. Steve Goeringer Distinguished Technologist, Security. Tao Wan Principal Architect, Security.

Vikas Sarawat. Wayne Surdam VP of Communications. Zane Hintzman Associate Engineer. Read More. Read Less. Stay Informed Receive insightful and engaging content and updates. HFC Network. May 6, Key Components of the Testing Environment Much like our prior work on bandwidth usage, the test setup used typical settings and looked at both upstream and downstream data consumption from laptops connected to a cable broadband internet service. The data gathering scenario: 10 people, each on their individual laptops, participated in the conference under test One person on the broadband connection under test, using either a lower-cost or a higher-cost laptop.

The other nine participants were not using the broadband connection under test. Total data consumption was recorded for the laptop using the broadband connection under test. Analysis Table 1 shows hourly bandwidth consumption combining both upstream and downstream for the laptop under test, normalized to Gigabytes per hour.

A few notes on the charts: There was only one client behind the cable modem. Each bar represents one minute of data consumption. Each bar shows total consumption and includes both the upstream and downstream, and both audio and video, added together. These charts show real-time consumption measured in Megabytes per hour to illustrate consumption over time. Figure 1 shows the data consumed when using the lower-cost laptop in the person meetings.

 
 

 

– Reducing Zoom Data and Bandwidth Use

 

For all 10 participants, cameras and microphones were on. Conference applications were set to “gallery mode” with thumbnails of each person filling the screen, no slides were presented and the video conference sessions just included people talking. The laptop under test used a wired connection to the cable modem to ensure that no variables outside the control of the service provider would impact broadband performance.

Most notably, by using a wired connection, we removed the variable of Wi-Fi performance from our test setup. During data collection, the conference app was the only app open on the laptop under test. Video conferencing sessions were set up and data consumption was measured over time. We collected 10 minutes of data for each conferencing session under test to calculate the total consumption for one hour.

The charts below show the data consumed for each of the 10 minutes of the conference session. During the conference there was movement and discussion to keep the video and audio streams active throughout the period of data collection.

For each test scenario, only one laptop was connected at a time to the broadband connection under test. Our goal was to measure the data consumption of one conferencing user on the broadband connection.

The other conference participants were on the internet; they were not in the lab. Once again, we used TShark a popular, widely used network protocol analyzer to capture and measure the data. For the laptop under test, we chose two that have quite different capabilities. The first was a low-cost laptop with an inch screen, like the ones students are often provided by school districts for at-home learning. The second was a higher-cost laptop with a inch screen, like what we often see in an enterprise environment.

Note the two laptops not only have quite different hardware components e. Once again, to avoid any appearance of endorsement, we are not identifying the specific laptops used.

Table 1 shows hourly bandwidth consumption combining both upstream and downstream for the laptop under test, normalized to Gigabytes per hour. The table provides the data consumption for the low-cost and higher-cost laptops in each scenario with the four conferencing applications. The following figures show the data consumption, in Megabytes, for each minute of the minute data collection for each of the permutations of our testing. Figure 2 shows data consumed each minute for each of the four apps when using the higher-cost laptop was in the person meetings.

Figure 3 shows the data consumed each minute using App A and compares the two laptops used for data collection.

For each minute, the bar to the left is the lower-cost laptop and the bar to the right is the higher-cost laptop. Figure 4 shows the data consumed each minute using App B and compares the two laptops. The bar to the left is the lower-cost laptop and the bar to the right is the higher-cost laptop. Figure 5 shows the data consumed each minute using App C and compares the two laptops.

Figure 6 shows the data consumed each minute using App D and compares the two laptops. Data Consumption Varies : The first takeaway is that different apps consume different amounts of bandwidth, as shown in Table 1, from 0. Comparing Laptops : In Table 1, the two columns of data show the differences between the lower-cost and higher-cost laptops for the data collections.

On the lower-cost laptop, Apps A, B and C consume about the same amount of data on an hourly basis. Comparing Laptops : The second column of data show that all apps on the higher-cost laptop consumed more bandwidth than the lower-cost laptop. This difference implies that when using the actual conferencing app not a web browser , processing power available in the laptop may be a determining factor in consumption. Comparing Apps : App C was the most consistent in data consumption regardless of the laptop used.

The other conference applications noticeably consumed more on the higher-cost laptop. In summary, we observed a more than 7X variation in the data consumption of video conferencing with a very limited exploration of just two variables — laptop and video conferencing application. Notably, however, when data consumption was at its highest, it was of the same magnitude as the data consumption of an HD video stream. This is an area ripe for further research and study, both to more comprehensively explore these variables e.

Andy Dolan Senior Security Engineer. Ann Finnie Global Communications Manager. Barry Ferris Senior Product Manager. CableLabs CableLabs. Chad Riland Program Manager, Innovation. Chris Lammers Chief Operating Officer. Darshak Thakore Principal Architect.

David Debrecht Vice President, Wireless. Debbie Fitzgerald Technology Policy Director. Eric Klassen Executive Producer. Greg Rutz. Greg White Distinguished Technologist.

Jason Rupe Principal Architect. Jud Cary Deputy General Counsel. Troubleshooting Audio: Reporting Problems. If possible, report the problem while it is happening.

It will be easier to diagnose. Change Ownership of a Zoom Meeting or Webinar. Both the current and the When your WiFi connection is inconsistent during a Zoom meeting, for example if you are traveling, consider joining the audio portion of the meeting via your phone.

If you loose network Overview For Zoom meetings, the meeting owner is the user who either schedules the meeting or has it scheduled on their behalf. The meeting owner also owns any cloud recording of the Reducing Zoom Data and Bandwidth Use. Switch Zoom Account from Zoom. To take full advantage of web conferencing security features offered to you as a member of the Cornell community, your Zoom account should be linked to the Cornell Zoom service. If you signed up for Zoom using the public non-Cornell website, zoom.

Troubleshooting Canvas-Zoom Integration Issues. Instructors or students accessing Zoom through Canvas can encounter issues opening Zoom. This might result in a blank screen area where the Zoom app should appear or an error message indicating Some Zoom users may be experiencing difficulty joining meetings created between Monday, March 30, , around am and Wednesday, April 1, , around noon, that required attendees to be Users may see a browser message when logging into the Cornell Zoom website, particularly when in incognito or private browsing mode.

User Experience Echoing is heard in the conference. How to Solve this Problem Echoing is generally caused by a participant in the teleconference on a speakerphone creating an It’s possible to encounter an issue where Zoom removes all alternative hosts when a meeting is edited. The issue occurs only for recurring meetings. This issue is related Zoom Problem: “You cannot log into your Zoom account using this method”.

When trying to log into Zoom, you may see an error message, “You cannot log into your Zoom account using this method. Contact your IT administrator for instructions. Zoom Problem: Can’t Sign In to cornell. If you signed up for a free or trial account directly with Zoom and you used your cornell. If someone forwards to you a link for a Zoom meeting, it is possible you will see this error message when you try to use the link: This will only happen when The When scheduling meetings, users cannot copy and paste a list of alternative hosts into the Alternative Hosts field.

App returns “No data” or “Please Enter valid email addresses” message This can happen if you Zoom Training. Watch recorded training sessions to learn more about Zoom. Was this page helpful? Your feedback helps improve the site.