The longer this section is, the better your overall noise reduction will be.Ĭlick “Effect” -> “Noise Reduction”, and then press the “Get Noise Profile” button. This gives you the typical background noise that you want to remove. Select a section of the audio where nobody’s talking. Open the audio track in Audacity, and noise-reduce ffmpeg takes care of the details:įfmpeg -i original_video.mp4 original_audio.mp3Ģ. Mute video track, and “group” the audio and video tracksĪt the command line, convert the video directly to an mp3.Add video and noise-reduced track to kdenlive.(I’m sure that the same process works with other tools, but these are the ones that I use.) I’ve been trying to figure out how to reduce background noise, and I think I finally figured it out. I’ve been doing interviews at the OpenStack PTG this week, and the space I started in was very noisy.