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By PURPLELEC | 09 November 2023 | 0 Comments

Dual-camera live broadcast: OBS+NDI encoder solution

  Dual-camera live broadcast uses two cameras to shoot from two different perspectives, and then the director station switches between them to select the most suitable lens for advancement, thereby achieving richer visual effects.
Dual-camera live broadcast
  Using NDI technology for dual-machine live broadcast can achieve high-quality image transmission and sharing, and can avoid the camera cards and other equipment required for traditional dual-machine live broadcast. NDI technology can also realize video data transmission and sharing between multiple devices, which is very suitable for use in situations such as multi-person collaborative live broadcasts.
  The NDI encoder is based on the open source NDI standard and can be seamlessly interconnected with other hardware and software that support the NDI standard, thereby achieving cross-platform and cross-device video data transmission and resource sharing. It has the advantages of low latency, high quality, multi-protocol compatibility, flexibility, and easy configuration, and can be widely used in various live broadcasts, video creation and other fields.
Dual-camera live broadcast
  Step 1: Connect the device: Connect the first camera to the main console computer through the network, and ensure that it is successfully recognized as an NDI device. Repeat this step to connect the second camera to the main console as well.
NDI technology
  Step 2: Configure OBS: Open the OBS software on your main console computer. First, make sure the NDI plug-in is installed and configured. Select "NDI Output" in the OBS settings and enable the NDI output function. Then, click the "+" button in the scene panel to add a new scene and give it a meaningful name.
  Next, click the “+” button in the resource panel to add two video sources, corresponding to the output signals of the two cameras. Specify the correct name and properties for each input source, such as front camera, rear camera, etc.
NDI technology
  Step 3: Set layout and switching settings: According to live broadcast needs, adjust screen splitting, picture-in-picture and other functions in the layout tab to create multiple perspective combinations. Achieve ideal results by dragging and adjusting the size and position of individual video source windows.
  To easily switch between different perspectives, be sure to set up the corresponding shortcut keys or buttons on the Hotkeys tab or Shortcuts toolbar.
  Step 4: Set up the audio input source: Connect the appropriate audio device (such as a microphone) to the main console computer. In OBS's settings, select the "Audio" section and specify the correct audio input source for the device you're connected to.
  As needed, adjust volume, gain and other parameters to optimize the audio effect. In addition, mixing can be performed to ensure that all sounds are clearly delivered to the audience during the live broadcast.
  Step 5: Connect to the target platform or streaming media server: Use a live broadcast platform or streaming media server that supports the RTMP protocol to log in to your account and obtain the push key or link address. Return to the OBS interface, select the correct service and server in the "Stream" settings tab, and enter the push key or link address. Before clicking the "Start Streaming" button to start live streaming, be sure to test all configurations to ensure the video and audio quality and switching effects are as expected!
  By combining the use of OBS and NDI encoders, dual-camera live broadcast explanations can be easily achieved. You can flexibly adjust various settings according to your needs and give full play to the advantages provided by OBS and NDI technologies. At the same time, these technologies also provide many customization options that you can adjust and optimize according to your needs. Committed to providing high-quality, professional-level live events.

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