Remove Noise from Video using FFmpeg
In this article, we will discuss how to remove noise from a video using FFmpeg. FFmpeg is a free and open-source software project consisting of a vast software suite of libraries and programs for handling video, audio, and other multimedia files and streams.
Requirements
To follow along with this tutorial, you will need to have FFmpeg installed on your system. You can download the latest version from the official FFmpeg website: FFmpeg Downloads
Removing Noise from Video
To remove noise from a video, we will use the following command:
ffmpeg -i "input.mp4" -af "lowpass=1000,highpass=200,afftdn=nf=-25" -c:v copy "output.mp4"This command takes the input video file "input.mp4" and applies a noise reduction filter using the "lowpass", "highpass", and "afftdn" options. The output video file is named "output.mp4".
Explanation of the Command
The "lowpass" filter removes high-frequency components from the video, while the "highpass" filter removes low-frequency components. The "afftdn" filter adjusts the noise reduction based on the noise level in the video. The "nf=-25" option sets the noise reduction strength to -25 dB.
Removing Noise from Audio
If you only want to remove noise from the audio track, you can use the following command:
ffmpeg -i "input.mp4" -vn -af "noise=10:0.5:0.01" "output_audio.mp3"This command takes the input video file "input.mp4", extracts the audio track using the "-vn" option, and applies the "noise" filter to remove noise from the audio. The output audio file is named "output_audio.mp3".
References
), and an unordered list () for the references. The code blocks contain properly formatted code according to the programming language used (in this case, FFmpeg command-line syntax). The title is provided separately, as per your request.