There are two different approaches you can use in order to extract audio from a video on Twitter. The first approach involves the use of Twitter video to MP3 converters such as Online Video Converter. However, for this, you have to download video files to your system and then upload it to convert them to mp3 or mp4 formats. With StreamFab video downloader, it's way more convenient. Copy the link to your video, paste the link into StreamFab, choose your format to “mp3”, and click the download button.