Audio and video OS X Lion An operating system? Yes. Among Lion’s new features is an Automator trick that allows you to easily convert compatible media files right from the Desktop.

Extracting audio from video on your smartphone is quick and free with the right tools. You can use third-party apps on iOS and Android like MP3 Converter or Video to MP3 to extract audio from videos.

To turn a video into an audio file on your iPhone, you'll need to download a third-party app from the App Store. Most apps that allow you to convert video into audio are free, albeit supported by ads.