Use:  increase user engagement with in-line audio on content; provide quick audio bites to include in advertising

SoundCite, a product of Knight Lab, allows content developers to integrate easily and seamlessly short audio snippets — such as clips from speeches, songs, interviews, etc. —   directly into story text.  Users would simply click on text to play the clip rather than move to a separate audio player. SoundCite also could be used to imbed  short audio (jingle? sound effect?) in advertising content.

The tool, now in beta, is open-source and available on GitHub.

More:

Knight Lab: SoundCite beta, in-line audio tool, ready to use