vMix Integration Settings
This document is a machine-translated draft and is currently undergoing review. Some content may be inaccurate or differ from the original Korean version. For the most precise information, please refer to the Korean documentation.
This document explains how to configure vMix for integration with the Kollus Live service.
If you encounter issues during external encoder integration or need assistance with video quality settings, please contact our Account Manager(biz@catenoid.net) or Technical Support(tech_support@catenoid.net).
Basic Live Streaming Settings
Step 1: Check Live Streaming Information
Check the live streaming address and stream key information required for live streaming in the Kollus Live console.
- Live streaming address: Kollus Live console > [Channel] > [Channel list] > Select channel > [application link]
- Stream key: Kollus Live console > [Channel] > [Channel list] > [Edit] on the right of the target channel > [Creator code] tab at the bottom > [Creator stream key]
Step 2: Configure vMix Settings
Enter the above information into the vMix program settings window.
- Settings path: [Streaming Settings]
- Enter streaming information
vMix setting item Kollus Live console information URL Application link Stream Name or Key Creator stream key 
Screen Pixelation Prevention Settings
Screen pixelation may occur when streaming content that includes presentation materials such as annotations or PPT slides, or when streaming video with lighting changes or fast motion. To maintain stable video quality, please change the settings in the vMix program as described below.
Keyframe Interval Settings
A longer keyframe interval can slow video quality recovery during scene transitions. Therefore, the following settings are recommended.
- Settings path: [Streaming Quality] > [Keyframe Frequency]
- Setting value: 1 second
- Enable option: Check [Keyframe Aligned]
Frame Rate Settings
If the frame rate is too high, screen pixelation may occur due to insufficient bandwidth. For general lectures or broadcasts, NTSC 30p is the recommended setting.
- Settings path: [Settings] > [Display] > [Master Frame Rate]
- Setting value: NTSC 30p
Service Bitrate Settings
To prevent video quality degradation in the final service, the original streaming bitrate must be kept higher than the Kollus encoding settings. It is recommended to set the vMix streaming bitrate higher than the maximum bitrate of the Kollus encoding profile.
Step 1: Check the Bitrate
Check the maximum bitrate value of the profile in use at Kollus Live console > [Settings] > [Encoding profile].
Step 2: Configure vMix Bitrate Settings
- Settings path: [Streaming Quality] > [Video Bit Rates]
- Setting value: Enter a value higher than the maximum bitrate of the Kollus encoding profile confirmed in Step 1.
