Mix music/audio onto an existing video via ffmpeg. Modes: replace, overlay, duck (sidechain compressor lowers music under speech). Volume + fade controls. Pure ffmpeg, no API. Use when: 'mix this music onto the video', 'add background music to video', 'duck the music under voiceover', 'смешай музыку
Mix music/audio onto an existing video via ffmpeg. Modes: replace, overlay, duck (sidechain compressor lowers music under speech). Volume + fade controls. Pure ffmpeg, no API. Use when: 'mix this music onto the video', 'add background music to video', 'duck the music under voiceover', 'смешай музыку с видео', 'фоновая музыка для видео'.