This quickstart provides information on how to use the K4A recorder tool to record the data streams emitted from the Sensor SDK to a file.

Prerequisites

• Femto Bolt is connected to the host computer and powered on properly.
• You have completed Set up Femto Bolt.

Create Recording

1. Open a command prompt, providing the path to k4arecorder.exe, located in the k4arecorder tool install location. For example:

F:\OrbbecSDK_K4A_Wrapper_v1.8.1_20231011_win_x64_release\bin\k4arecorder.exe

2. Record for 5 seconds:

k4arecorder.exe -l 5 output.mkv

3. By default, the recorder captures content with NFOV unbinned depth mode, 1080p RGB @ 30 fps (including IMU data). See K4A Recorder for Femto Bolt , a full overview and tips on recording options.

Play Recording

You can play back the recording using the K4A Viewer tool.

1. Launch k4aviewer.exe
2. Expand the “Open Recording” tab and open your recording.

Next Steps

You now know how to record sensor streams to file, next you can generate your first application.

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