System Requirements
- System requirements for High Definition (HD) broadcasts
- System requirements for attendees
- System requirements for encoder broadcasts
- System requirements for single webcam broadcasts
- System requirements for telephone broadcasts
- System requirements for VCU/telepresence broadcasts
- System requirements for video bridge broadcasts
- Webcast network requirements for presenters
System requirements for High Definition (HD) broadcasts
For video events with the 720p or 1080p high-resolution player size. Not available for telephone broadcasts.
This article covers additional requirements to broadcast video in 720p or 1080p. For requirements specific to your broadcast type, see system requirements articles for:
Note: 720p and 1080p encoder broadcasts require HD encoding software (for example, Wirecast, OBS, or vMix) to be installed on the encoder.
Live Studio Requirements
If you're joining the Live Studio as a moderator or presenter, your system must meet the following requirements.
| What you need | Moderators and Presenters |
|---|---|
| Hardware |
|
| Software | For encoder broadcasts only: HD encoding software (for example, Wirecast, OBS, or vMix) |
| Operating System |
|
| Processor (CPU) | Intel Core i5 3.0GHz or better
Note: Less powerful processors will degrade audio and video performance. |
| Memory (RAM) | 4 GB |
| Browser |
Current or previous 5 versions of:
Note: Firefox and Safari do not support screen sharing for 720p or 1080p events. |
| Internet Speed |
A dedicated and wired high-speed internet connection of 4 Mbps or better (upload and download) Note: To ensure a stable connection, disconnect from the VPN and use a wired internet connection, instead of Wi-Fi. Wi-Fi connections are prone to dips in bandwidth that can negatively impact your video connection. |
System requirements for attendees
You can attend an event on a desktop computer or mobile device - just open the event URL in a supported browser. This article details the system requirements for attending an event.
Note: If you enter the event link in a browser window and the event doesn’t open, access might be blocked by a firewall or your company network security rules. Review our network requirements and make sure the ports and IP ranges in the Webcast Audience Members column are permitted. If you're unsure of your settings, contact your IT Administrator.
Desktop System Requirements
| What you need | Requirements |
|---|---|
| Hardware | PC or Mac
Note: Your computer must be plugged in and have a sound card with speakers and a monitor with 1024x768+ resolution support. |
| Operating System |
|
| Processor (CPU) | Intel Core i5 2.0GHz or better
Note: Less powerful processors will degrade audio and video performance. |
| Memory (RAM) | 4 GB |
| Browser |
Current or previous 5 versions of:
|
| Internet Speed |
A dedicated and wired high-speed internet connection of 1 Mbps or better (upload and download). 2 Mbps or better is recommended to view the event at the highest quality. Note: To ensure a stable connection, disconnect from the VPN and use a wired internet connection, instead of Wi-Fi. Wi-Fi connections are prone to dips in bandwidth that can negatively impact your event experience. |
Mobile System Requirements
| What you need | Requirements |
|---|---|
| Hardware |
|
| Operating System |
|
| Browser |
Current or previous 5 versions of:
|
| Internet Speed |
A dedicated high-speed internet connection of 1,000 Kbps (1 Mbps) or better (upload and download) or a 4G connection or better. Note: To ensure a stable connection, disconnect from the VPN. |
System Test
Check your system before the event. The diagnostic test checks your computer and network connections to help you troubleshoot problems before the event begins and if you're having issues during the event.
System requirements for encoder broadcasts
For events with Your Encoder as the live acquisition source. This article details the system requirements for broadcasting a Live event or recording a Simulated Live event with an encoder.
To join the Live Studio and moderate or present, your system must meet the following minimum system and hardware requirements. Please test your bandwidth on the same network as your broadcast using https://speedtest.net or similar site. You will also need 1.5x the total bitrate in upload bandwidth speed.
Live Studio Requirements
If you're joining the Live Studio as a moderator or presenter, your system must meet the following requirements.
| What you need | Moderators and Presenters |
|---|---|
| Hardware | PC or Mac
Note: Your computer must be plugged in and have a sound card with speakers and a monitor with 1024x768+ resolution support. |
| Operating System |
|
| Processor (CPU) | Intel Core i5 3.0GHz or better
Note: Less powerful processors will degrade audio and video performance. |
| Memory (RAM) | 4 GB |
| Browser |
Current or previous 5 versions of:
Note: Safari is not supported for screen sharing. |
| Internet Speed | A dedicated and wired high-speed internet connection of 5 Mbps or better (upload and download) per stream (primary and backup).
Note: To ensure a stable connection, disconnect from the VPN and use a wired internet connection, instead of Wi-Fi. Wi-Fi connections are prone to dips in bandwidth that can negatively impact your video connection. |
If you are unable to open the Live Studio, access might be blocked by a firewall or your company network security rules. Review our network requirements and make sure the ports and IP ranges in the "Webcast Presenters - Video Events" column are permitted. If you are unsure of your settings, contact your IT Administrator.
Broadcasting Requirements
A moderator must join the Live Studio to connect the encoder to the event, start the event, manage event content and Q&A, and end the event. Presenters that will be presenting content must also join the Live Studio.
To broadcast with an encoder, your must:
- Have a dedicated connection with bandwidth that consistently exceeds the bit rate you are transmitting. For example, if you are streaming at 800 Kbps we recommend a dedicated connection of at least 1.6 Mbps. If you're using an active backup encoder, the bandwidth requirements should be doubled to 3.2 Mbps.
- Have a hardware and software package capable of encoding live video streams delivered using the Real Time Messaging Protocol (RTMP). Your PC must permit the RTMP (TCP over port 1935).
- Support H.264 (Video) / AAC (Audio) configurations
- For 720p or 1080p broadcasts, have HD encoding software installed (for example, Wirecast, OBS, or vMix)
Notes:
- To prevent the media playback from freezing and requiring a stream refresh, corporate users behind proxy servers should make sure their network settings don't time out on RTMPT requests. If you're unsure of your settings, contact your IT Administrator.
- If you are using an active backup encoder during a live webcast the bandwidth requirements discussed above should be doubled.
- Be conscious of your target audience's bandwidth capabilities when broadcasting at higher bit rates.
- For secured connections using TLS encryption, the RTPS (TCP over port 443) protocol is supported by the platform. The configuration required for using RTMPS will depend on the encoding device or software in use.
- Required Keyframe Interval: 2 seconds
- Keyframe Interval, which is also referred to as "keyframe frequency" by some encoders, is the frequency that the full image on the screen changes. This should always be set to 2 seconds to ensure optimal playback on the audience viewer. For Wirecast, this should be set to a "Key frame every 60 frames" based on a 30 FPS setting, and OBS should be changed from the default "0=auto" setting to a "2 s" Keyframe Interval.
System requirements for single webcam broadcasts
For events with Webcam as the live acquisition source. This article details the system requirements for broadcasting a Live event or recording a Simulated Live event with a single webcam.
To join the Live Studio and moderate or present, your system must meet the following minimum system and hardware requirements. At least 48 hours before the event, run the system test with the hardware and network you will use on the day of the event.
If you're unable to open the Live Studio, access might be blocked by a firewall or your company network security rules. Review our network requirements and make sure the ports and IP ranges in the Webcast Presenters - Video Events column are permitted. If you're unsure of your settings, contact your IT Administrator.
Live Studio Requirements
If you're joining the Live Studio as a moderator or presenter, your system must meet the following requirements.
| What you need | Moderators and Presenters |
|---|---|
| Hardware | PC or Mac
Note: Your computer must be plugged in and have a sound card with speakers and a monitor with 1024x768+ resolution support. |
| Operating System |
|
| Processor (CPU) | Intel Core i5 3.0GHz or better
Note: Less powerful processors will degrade audio and video performance. |
| Memory (RAM) | 4 GB |
| Browser |
Current or previous 5 versions of:
|
| Internet Speed |
A dedicated and wired high-speed internet connection of 3 Mbps or better (upload and download). Note: To ensure a stable connection, disconnect from the VPN and use a wired internet connection, instead of Wi-Fi. Wi-Fi connections are prone to dips in bandwidth that can negatively impact your video connection. |
Broadcasting Requirements
For the best audio and video quality, we recommend that presenters use a:
- High quality webcam (for example, Logitech C920) or HD webcast camera
- Headset or webcam mic with built-in noise cancellation. Do not use your computer or webcam's built-in microphone.
When you join the Live Studio, you must grant it access to your mic and camera to connect your audio and video.
System requirements for telephone broadcasts
For events with Telephone as the live acquisition source. This article details the system requirements for broadcasting a Live event or recording a Simulated Live event over the phone or with VoIP audio.
To join the Live Studio and moderate or present, your system must meet the following minimum system and hardware requirements. At least 48 hours before the event, run the system test with the hardware and network you will use on the day of the event.
If you're unable to open the Live Studio, access might be blocked by a firewall or your company network security rules. Review our network requirements and make sure the ports and IP ranges in the Webcast Presenters - Audio Events column are permitted. If you're unsure of your settings, contact your IT Administrator.
Live Studio Requirements
If you're joining the Live Studio as a moderator or presenter, your system must meet the following requirements.
| What you need | Moderators and Presenters |
|---|---|
| Hardware | PC or Mac
Note: Your computer must be plugged in and have a sound card with speakers and a monitor with 1024x768+ resolution support. |
| Operating System |
|
| Processor (CPU) | Intel Core i5 3.0GHz or better
Note: Less powerful processors will degrade audio and video performance. |
| Memory (RAM) | 4 GB |
| Browser |
Current or previous 5 versions of:
Note: Safari is not supported for screen sharing. |
| Internet Speed |
A dedicated and wired high-speed internet connection of 2 Mbps or better (upload and download). Note: To ensure a stable connection, disconnect from the VPN and use a wired internet connection, instead of Wi-Fi. Wi-Fi connections are prone to dips in bandwidth that can negatively impact your video connection. |
Broadcasting Requirements
For the best audio and video quality, we recommend that presenters use a:
- Touchtone phone if dialing in to the event
- Headset or mic with built-in noise cancellation. Do not use your computer's built-in microphone if using VoIP.
When you join the Live Studio and connect with VoIP audio, you must grant it access to your mic to connect your audio.
System requirements for VCU/telepresence broadcasts
For events with VCU/Telepresence as the live acquisition source. This article details the system requirements for broadcasting a Live event or recording a Simulated Live event from a video conferencing unit (VCU) or other endpoint or meeting app accessible by its SIP or H323 address.
To join the Live Studio and moderate or present, your system must meet the following minimum system and hardware requirements. At least 48 hours before the event, run the system test with the hardware and network you will use on the day of the event.
If you're unable to open the Live Studio, access might be blocked by a firewall or your company network security rules. Review our network requirements and make sure the ports and IP ranges in the Webcast Presenters - Video Events column are permitted. If you're unsure of your settings, contact your IT Administrator.
Live Studio Requirements
If you're joining the Live Studio as a moderator or presenter, your system must meet the following requirements.
| What you need | Moderators and Presenters |
|---|---|
| Hardware | PC or Mac
Note: Your computer must be plugged in and have a sound card with speakers and a monitor with 1024x768+ resolution support. |
| Operating System |
|
| Processor (CPU) | Intel Core i5 3.0GHz or better
Note: Less powerful processors will degrade audio and video performance. |
| Memory (RAM) | 4 GB |
| Browser | Current or previous 5 versions of:
Note: Safari is not supported for screen sharing. |
| Internet Speed | A dedicated and wired high-speed internet connection of 3 Mbps or better (upload and download)
Note: To ensure a stable connection, disconnect from the VPN and use a wired internet connection, instead of Wi-Fi. Wi-Fi connections are prone to dips in bandwidth that can negatively impact your video connection. |
Broadcasting Requirements
A moderator must join the Live Studio to connect the VCU to the event, start the event, manage event content and Q&A, and end the event. Presenters that will be presenting content must also join the Live Studio.
To broadcast with a VCU, your VCU must allow incoming SIP or H.323 calls and support H.264 video.
Contact your Video Conferencing vendor or local IT Administrator to ensure firewall permissions allow incoming video calls.
Note: To prevent the media playback from freezing and requiring a stream refresh, corporate users behind proxy servers should make sure their network settings don't time out on RTMPT requests. If you're unsure of your settings, contact your IT Administrator.
System requirements for video bridge broadcasts
This article details the system requirements for broadcasting a Live event or recording a Simulated Live event with the video bridge. The Video Bridge supports up to 20 presenters connecting via Webcam or another source (for Advanced Video Bridge events only).
To join the Live Studio and moderate or present, your system must meet the following minimum system and hardware requirements. At least 48 hours before the event, run the system test with the hardware and network you will use on the day of the event. For system test instructions, see Video Bridge Guide for Presenters and Guest Admins.
If you're unable to open the Live Studio, access might be blocked by a firewall or your company network security rules. Review our network requirements and make sure the ports and IP ranges in the Webcast Presenters - Video Events column are permitted. If you're unsure of your settings, contact your IT Administrator.
Live Studio Requirements
If you're joining the Live Studio as a moderator or presenter, your system must meet the following requirements.
| What you need | Moderators and Presenters |
|---|---|
| Hardware | PC or Mac
Note: Your computer must be plugged in and have a sound card with speakers and a monitor with 1024x768+ resolution support. |
| Operating System |
|
| Processor (CPU) | Intel Core i5 3.0GHz or better
Note: Less powerful processors will degrade audio and video performance. |
| Memory (RAM) | 4 GB |
| Browser | Current or previous 5 versions of:
Note: Firefox does not support screen sharing. |
| Internet Speed | A dedicated and wired high-speed internet connection of 3 Mbps or better (upload and download)
Note: To ensure a stable connection, disconnect from the VPN and use a wired internet connection, instead of Wi-Fi. Wi-Fi connections are prone to dips in bandwidth that can negatively impact your video connection. |
Broadcasting Requirements
Video Bridge
For the best audio and video quality, we recommend that presenters use a:
- High quality webcam (for example, Logitech C920) or HD webcast camera
- Headset or webcam mic with built-in noise cancellation. Do not use your computer or webcam's built-in microphone.
When you join the Live Studio, you must grant it access to your mic and camera to connect your audio and video.
Advanced Video Bridge
If you're broadcasting with an advanced video bridge, you can connect to the event by phone or with webcam. You can also dial in to the event from Skype/Lync, an encoder, and a VCU or have the Live Studio dial out to your conference room or device. A moderator must join the Live Studio to connect the room or device to the event, start the event, manage event content and Q&A, and end the event. Presenters that will be presenting content must also join the Live Studio.
Note: To prevent the media playback from freezing and requiring a stream refresh, corporate users behind proxy servers should make sure their network settings don't time out on RTMPT requests. If you're unsure of your settings, contact your IT Administrator.
Encoder Requirements
To broadcast with an encoder, your must:
- Have a dedicated connection with bandwidth that consistently exceeds the bit rate you are transmitting. For example, if you are streaming at 600 Kbps we recommend a dedicated connection of at least 1.2 Mbps. If you're using an active backup encoder, the bandwidth requirements should be doubled.
- Have a hardware and software package capable of encoding live video streams delivered using the Real Time Messaging Protocol (RTMP). Your PC must permit either the RTMP (TCP over port 1935) or RTMPT (over port 80) live streaming protocol or both.
- Support H.264 (Video) / AAC (Audio) configurations
Notes:
- If you are using an active backup encoder during a live webcast the bandwidth requirements discussed above should be doubled.
- Be conscious of your target audience's bandwidth capabilities when broadcasting at higher bit rates.
VCU/Telepresence Requirements
To broadcast with a VCU, your VCU must allow incoming SIP or H.323 calls and support H.264 video.
Contact your Video Conferencing vendor or local IT Administrator to ensure firewall permissions allow incoming video calls.
Telephone Requirements
For the best audio and video quality, we recommend that presenters use a:
- Touchtone phone if dialing in to the event
- Headset or mic with built-in noise cancellation
Webcast network requirements for presenters
Network requirements for presenters can be accessed here: https://webcasts.com/networkresources/
Refer to the right columns for the requirements for presenters based on if it will be an audio or video event. Please provide these instructions to your IT department to ensure your network meets the requirements outlined here.