Background Noise

I’m working on a video of interviews. The only microphone used was on-camera and there is a lot of people in the background talking, laughing, etc. It is difficult to understand the person being interviewed. What audio tools in Shotcut can I use to minimize the background chatter?

This is a common question and the most common suggestion is to use the Noise Reduction tool in Audacity:
https://manual.audacityteam.org/man/noise_reduction.html

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