In our project we only need the audio of a video file, to reduce the uploading size for a client I'm looking for a way to convert chosen video file to audio in clientside then try to upload the file to the backend. It's a react app by the way.
Any idea or solution or library will help.
Taking the audio track from the video is a conversion process that uses video/audio codecs and could take almost the same time as the video length itself to re-encode the streams.
It might be either a client application (downloaded on a user pc) or you have to upload the file to your backend, or to some online service that provides an Online Converter from MP4 to MP3 for example, this converter - https://conversiontools.io/convert/mp4-to-mp3. It has limitations for a free tier.
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