Streaming and moderating

How many speakers or presenters can be on a stream at a given time?

You can have 13 people in the studio and on screen at a time. Up to three of these can be producers (or "hosts") who joined from the Webex Events Platform via the 'Launch Studio' button. This total isn't affected when someone shares their screen, even though the screen share appears as if it were an additional speaker. Anyone with the link can join and no login of any kind is required. If you have more than 13 people joining your stream, you may choose to have a "waiting room" in another meeting tool, or use another streaming tool with the Webex Events RTMP Player.

⭐️ Keep in mind, you should never share the link that opens when you click Launch Studio. This link is unique to you and expires after 24 hours.

What happens when my studio is full?

If there are already 13 people in the studio and an 14th person tries to join, any producers in the Studio will get a notification that someone just tried to join and there was no space for them.

The speaker also sees a message notifying them that the Studio is full, and they can click the Retry button to try to join again.

If you want to let a new presenter into the studio, someone else must leave the studio, or you can remove someone. To remove someone, simply click the three dots next to their video preview, and click Remove from Studio.

Can I invite a speaker as a producer so they can control backgrounds, banners, chats, etc?

Follow the process in our article about managing teams to invite the person to the team managing your event in the Webex Events Platform. Once the speaker joins your team, they can edit the Agenda session or Live Stream feature and click the 'Enter Studio' button so they can control all the back-end features of the stream.

⚠️ Caution! Don't share the URL the browser displays after you click Enter Studio. Multiple users joining the studio with the same URL can cause problems. Anyone who will be controlling backgrounds, banners, chats, etc. should click the Enter Studio button to join as described above.

Can I test my stream and try out the studio?

Yes! You can click Go Live multiple times in a single studio to try it out. If attendees are already using the Event App, make a hidden test stream instead of using an official Agenda session or Live Stream feature.

If I leave the studio after I click Go Live, will the stream end?

If you click Go Live and then everyone leaves the studio, the stream will end automatically after 5 minutes. If this happens, you can still click Go Live again. 👍

How many streams can I run at once?

There's no limit to how many live streams you can run at once. We recommend using Agenda sessions when multiple streams happen at the same time or if you have a lot of live streams. You should also carefully coordinate speakers, moderators, and captioners.

Can I choose the streaming quality?

Yes. Click the Settings (⚙️) icon in the left menu to adjust the 'Broadcast quality' to choose between 1080p and 720p. The Studio's default streaming quality is 1080p. A lower broadcast quality can help ensure a consistent and inclusive experience for speakers and attendees alike across all devices, locations, and connection speeds.

Can I stream a session to my event and another site (YouTube, Twitch, etc.) at the same time?

With Webex Events Production Studio, no. With the Webex Events RTMP player, yes!

Can I review Q&A answers and poll results in the studio?

Yes! Simply click the Audience tab, then the Q&A tab or the Polling. Click an item to show it in the live stream.

Can I send messages to attendees from the studio?

People in the Studio can't interact with stream chat unless they're viewing the stream as an attendee in the Event App.

Can I remove unwanted messages from the live stream chat?

You can only remove chat messages from a live stream by blocking the user who posted the message. We only recommend this under severe circumstances because it completely removes the attendee from your Event App or Community.

Can I show PowerPoint presentations in the Studio?

You can show a presentation by opening it on your computer and sharing your screen. We recommend opening the presentation in the Chrome browser using Google Slides. Share only the presentation tab and check the Share tab audio box before you click 'Share' if your presentation includes audio.

How do I show my PowerPoint presentation in presenter mode with only one monitor?

Import your presentation into Google Slides, and double-check the formatting. Open the presentation in a separate browser tab from the Studio. In Google Slides, click the arrow next to 'Present' and select Presenter View.

When the Presenter View window opens, decrease the size of both browser windows so you can see both the Studio and your slides. When it's time to share your screen, share only the Google Slides browser tab, NOT your whole screen or the presenter view window. Now, proceed through the presentation as you normally would. You can see your speaker notes and the run time clock as you go!

⭐️ Keep in mind, if your presentation contains a video, check the Share Audio box when selecting the tab or window to share. We don't advise sharing your whole screen for a presentation since the 'Share Audio' box may not be available.

How do I tell who watched a live stream and for how long?

Yes, if you use Webex Event Studio, Webex Events Streaming by Restream, or the Webex Events RTMP player! Our robust Metrics and Video Analytics report downloads have all the click and view data you need. Read our Continuing Education credits article if you need to view information to award these. For a complete look at the Video Analytics report, click here.


How long can the videos I upload to the Media tab be?

You can upload MP4, AVI, MPG, MPEG, or MOV files that are 8 GB or less.

⭐️ Keep in mind, videos MUST be 16:9 ratio and no less than 720p. Processing/upload time will vary depending on internet connection. Uploads can take up to 2x the video duration. For example, a 1 hour video may take up to 2 hours to upload and process.

Can I use videos I uploaded to Video Center in the Studio?

Not yet. 😉

Do I have to upload videos and graphics to the Studio for each stream in my event?

Nope! When you upload something to one Studio, it's instantly available in all the others.

Is there any way to share video larger than 8 GB?

No. Although it's possible to show a larger video by playing it on your computer and sharing your screen, the viewer experience with this method is often laggy.

How many videos can I upload to the Studio?

As many as you want. 👍

What are the recommended dimensions for logos, overlays, and backgrounds?

  • Logo: 512×512 px PNG or JPG

  • Overlay/background : 1920x1080 px PNG or JPG

Where can I find graphics to use in my stream?

You can create graphics in nearly any photo editing program. If you'd rather have someone else do this for you, consider looking at StreamerTemplates, which offers a large selection of both free and paid templates.

What's the character limit for banners?

Static banners are capped at 200 characters. Ticker banners are capped at 1000 characters.

Can I include closed captions and translations?

Yes! In addition to our own free Webex Events Closed Captions & Translations, we also support several third-party caption and translation providers.

Recording and encoding

Is the stream recorded automatically?

Yes! However, the recording has a 12 hour limit. If your stream will run for longer than 12 hours, consider recording with a different platform through the RTMP player.

Can I prevent the stream from being recorded?

Automatic recording can't be turned off. If you're working with sponsors or speakers who are concerned about privacy, consider using the RTMP player with an alternative streaming service.

How soon can I download the recording after the stream?

Recordings are usually available within 1 minute of the stream ending.

Where can I find the recording, and what's the recording format?

After you click 'End Stream', a 'Recordings' button appears. Click the button, and in the modal that appears, the recording will show a 'Processing' status. When the recording is ready, a 'Download' button replaces the 'Processing' status.

Screenshot of the Recordings button and Download recordings modal.

When you click the button, the recording downloads in MP4 format.

How long are recordings available?

We don't currently delete recordings.

How do I post recordings in my Event App?

This article explains how. 😄

Connectivity and browsers

Is there a dial-in option?

No. Users may only listen to the stream via the Event App.

Do I need to use an ethernet connection to present or view?

We recommend a wired ethernet connection for both speakers and viewers for the best experience. A strong WiFi signal can work well, however.

What's the minimum internet speed required for presenters?

We recommend an upload speed of at least 10 Mbps.

What's the minimum internet speed required for viewers?

Viewers need a minimum of 10Mbps upload and download speed to watch a stream. Viewers can still experience varying stream quality due to network latency, WiFi saturation, hardware limitations, and running multiple programs at once, to name a few.

What browser should I use?

We recommend Google Chrome for the best experience.


No one can hear me. What do I do?

Check these things in order:

  1. Are you using the correct mic? Click the Settings (⚙️) button, then click Audio and look at the 'Microphone' setting to check.

  2. Are you using a headset or mic with a physical mute button? Make sure it’s not muted.

  3. Is another program using your mic (another meeting tool for example)? Close other programs, then refresh the page.

  4. Is your mic muted in your computer settings?

  5. Restart your browser. If that doesn’t work, restart your device.

  6. Still not working? Click the chat bubble in the bottom right corner of the Studio. We’re happy to help!

I'm on a Mac, and I lost camera/mic access. What do I do?

  1. On your Mac, click the Apple logo in the top left, click System Preferences, then click Security & Privacy.

  2. Click Privacy.

  3. Click Camera.

  4. Check the box next to your browser.

  5. Click Microphone.

  6. Check the box next to your browser.

I'm on an iOS device, and I lost camera/mic access. What do I do?

Ensure Safari has camera/mic access.

  1. Open your iPhone/iPad settings.

  2. Find Safari in the settings list and ensure camera/mic access is on.

I'm on a Mac Catalina, and my browser lost access to my screen. What do I do?

  1. On your Mac, click the Apple logo in the top left, click System Preferences, then click Security & Privacy.

  2. Click Privacy.

  3. Click Screen Recording.

  4. Check the box next to your browser.

Questions? Chat Us or Email

Did this answer your question?