Live Stream Encoder Configuration and Required Dacast Settings

Video Encoding and Transcoding
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Introduction

To ensure your Dacast live stream is stable and fully functional, you MUST configure your encoder to use the settings defined on this page. These settings have been chosen to ensure the maximum compatibility with the Dacast platform as well as with newer and older devices that are used for live streaming on your website (Desktop, Mobile, SmartTVs, etc.) In this article you will find:

  1. Common Settings that must be used for all live streaming on the Dacast platform
  2. Resolution & Bitrate Settings that differ based on the desired size and quality of your stream
  3. Unsupported Settings that must not be used or you will see problems with your stream
  4. Encoder Download Links to get your hands on a software encoder

1. Required Live Encoder Settings

The following settings are required for live streaming with Dacast, regardless of your selected resolution and bitrate:

Video Codec H.264 (x264 may work)
Frame Rate 25 or 30
Keyframe Interval 2 secs (or 2x frame rate)
Scanning Progressive
Rate Control Constant (CBR)
Audio Codec AAC-LC
Audio Bitrate 128 kbps
Audio Channels 2 (Stereo)
Audio Sample Rate 48 kHz (48,000 Hz)

2. Resolution & Bitrate Settings

Please select one of the following configurations and ensure your encoder is set up with these exact settings to help prevent streaming issues:

  ULD LD SD HD FHD
Name Ultra-Low Definition Low Definition Standard Definition High Definition Full High Definition
Video Bitrate (kbps) 350 350 – 800 800 – 1200 1200 – 1900 1900 – 4500
Resolution Width (px) 426 640 854 1280 1920
Resolution Height (px) 240 360 480 720 1080
H.264 Profile Main Main High High High

3. Unsupported Settings

Note that the following settings are unsupported and will break your stream:

  • Baseline H.264 Profile
  • Interlaced Scanning

4. Encoder Download Links

Any questions or need help/access to this feature? Please contact us. Not yet a Dacast user, and interested in trying Dacast risk-free for 30 days? Sign up today to get started.

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Additional Resources:

1. More on Video Transcoding

Encoding is a process used to convert the RAW video files captured by a camera into digital files suitable for live streaming over the internet. This process uses either a hardware or software encoder.

2. More Relevant Topics:

4 thoughts on “Live Stream Encoder Configuration and Required Dacast Settings

  1. Larry Edwards says:

    Hi.

    Is your OBS-Studio-21.1.2-Dacast.exe any different than the OBS-Studio-21.1.2-Full-Installer.exe from the OBS website? If so, what is different? Can one use the OBS 26.1?

    Thank you.

    Larry Edwards

  2. Jeannette Brown says:

    Hi I was just wondering if I have the best settings possible will there always be a minimal delay in twitch when streaming, 2-5 seconds, is that normal or can I still twitch it a bit more the and achieve a 0 delay while live streaming.

    • Harmonie Duhamel says:

      Hi Jeanette, I hope you are well. It’s correct; you will always have at least a brief delay. You can reduce your latency to make your broadcasts more user friendly but won’t have a 0 delay. I invite you to test Dacast platform for free with our 30-day trial via the following link https://www.dacast.com/signup/.
      Feel free to reach us anytime if you have further questions.

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