SoundCite is a tool that allows you to embed sound into text. This New York Times magazine article has examples of how the sound can be linked within text to play, adding a dimension to the written word.
For example, let’s say I am writing about an early evening scene and want to add some ambient noise. Click on the word, listen.
listen
The sound plays when the reader wants to hear the sound. The reader can choose to play the sound.
Excellent instructions can be found by clicking on this sentence.