Question

how to convert video to audio

Answer 1

just record the voice frm video

Answer 2

https://www.onlinevideoconverter.com/cloud-converter
Convert a video or audio file - Online Video Converter
https://www.vlchelp.com/convert-video-audio-mp3/
How to Convert Video to Audio (Mp3) using VLC - VLC Help
https://en.softonic.com/download/free-video-to-audio-converter-software/windows
Free Video To Audio Converter - Download