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Technical Requirements for Virtual and Hybrid Events

2 mins read

The following are the technical specifications for hosting or attending an event on Zuddl. These include system, browser, and connectivity specifications for the minimum, recommended, and best event experience. They also delineate the specifications for attendees and organizers.

System Specification

Minimum (for attendees)Quad-core8GB
Recommended (Minimum for Organizers)Octa-core16GBSmoother experience for a stage with 4 speakers
Best experiencesOcta-core>16GBHD Video and 4+ stage speakers


Zuddl events are best experienced on a laptop or a desktop. Nevertheless, you can also attend sessions on your mobile devices with limited interactivity. If you are an organizer, we strongly recommend that you use a laptop or desktop to host your events on Zuddl.

Supported Browsers

Zuddl works well with the latest version of Chrome (76 or higher). Zuddl relies on H.264 codec for supporting WebRTC-based routing. Upgrade to the latest version of Google Chrome.

Highly Recommended

It is highly recommended that you use your browser’s update functionality to update to the latest version.


BrowserMinimum versionRecommended versionBest experiencePlatform
Chrome (Recommended)Version 76 or higher
v.94macOS10+Windows 7+
SafariVersion 11 or higher
Latest (-1)macOS10+
Microsoft EdgeVersion 80 or higher

macOS10+Windows 7+

Browser Limitation

In some versions of the Safari browser, the audio output/speaker selection option shows only System Default Speaker Device in the list.

Network Requirement

With all the interactivity the platform offers, having a stable internet connection with adequate speed becomes essential for an optimal in-meeting experience. If you are an organizer, ensure that your browser allows you to stream media.

You can run a speed test to know your network speed.  If you’d be using the same network for your event, Zuddl checks for your internet speed, browser compatibility, audio, and video requirements upon entry for a seamless experience throughout.


The required internet speed based on the experience is shown in the table below:


PropertyMinimum Speed (Mbps))Recommended (Mbps))Best Experience (Mbps)
Uplink Speed48>20
Downlink Speed38>20

Note: For organizers, the minimum internet speed is <recommended> onwards.

Upload Speed without Screenshare

Speed (Mbps)Resolution
3 - 5480p
10 and above720p
20 and above1080p (only on request basis)

Upload Speed for RTMP Out

Speed (Mbps)Resolution
5 - 8480p
10 and above720p
20 and above1080p

The above table data is the same for the required upload speed with screen share.

Download Speed

NameNo. speakers
4 Mbps4
6-7 Mbps5 - 9
20 Mbps10

Bitrate (in Kbps)

Bitrate (kbps)ResolutionFPSBitrate With Screenshare (Kbps) 2
400 - 800360p302000
260 - 520360p15390 - 780

Note: The above table is created keeping the number of speakers as 1. As the number of speakers increases the bitrate gets multiplied by a factor of the number of speakers.

Learn about the recommended encoders for livestreaming.


  • I am using the latest Google Chrome version on a device that meets the specification. Why is the video lagging?
    • On all AMD-based and some Intel-based devices, Google Chrome uses the H.264 codec which may cause the video transmission bitrate to be lower than the set value. As a fix, you can disable hardware acceleration.
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