Video Settings – Larix Broadcaster - Storm Streaming Server

Selecting the appropriate encoder settings for your stream can be quite challenging. In this tutorial, we will guide you through the process of determining the optimal encoder parameters to achieve excellent quality and seamless streaming with Larix Broadcaster.

Video Tutorial

Theory - Preparation

Video encoding and transmission involve significant resource utilization. As a first step, it's advisable to check your internet connection's "upload" speed, which refers to the rate at which data can be sent to the internet server. Numerous tools, such as https://www.speedtest.net, are available to conduct this assessment.

After conducting the test, you will receive details regarding the download speed (which is less relevant in this context), the upload speed (which is of utmost importance), and the latency in data transmission between your computer and the server.

Here is a table illustrating the recommended upload speeds for various resolutions:

• Whenever possible, use a Wi-Fi connection (you can plug an Ethernet cable via a special USB-C/lightning dongle).
• Mobile LTE-based internet connections usually perform poorly for streaming.
• Check for packet loss to the streaming server. The packet loss value should not exceed 0.01%.
• To avoid thermal issues, make sure that your device is cooled properly.

Practice - Larix Broadcaster Configuration

1. On the main program screen, select the "Gear icon" and then go to "Video"
   
2. Now apply the following settings:
   1. Resolution - depending on your device capabilities, pick the right resolution like 1280x720. Then under the Bitrate field, make sure to provide a matching bitrate according to this table.
      
      

      Resolution	FPS	Required upload
      1920x1080	60	9 Mbit/s
      1920x1080	30	7 Mbit/s
      1280x720	60	7 Mbit/s
      1280x720	30	4,5 Mbit/s

      Table 1. required upload speed for different resolutions table
   2. Enable B-frames: off
   3. H.264 Profile: Main/High
   4. Keyframe frequency: 1 sec
      
3. Once all settings are in place, head back to the main application window and start broadcasting.