To turn a video into an audio file on your iPhone, you'll need to download a third-party app from the App Store.

You can convert a video to an MP3 file using Adobe Media Encoder, which can help save you storage space on your device.

There's a near-unlimited number of YouTube videos that you might want to have an offline MP3 copy of, like podcasts or instructional audio. Here's how to convert YouTube to MP3 with iTubeGo. YouTube ...