Creating a slideshow with audio accompaniment is simple with the Zoomify Image Viewer. Just add an 'AUDIO' value in the slides XML file for each slide that is to have an associated sound file. Audio playback is supported in Internet Explorer version 9+ and recent versions of other popular browsers. Sound files can be in the MP3, WAV, or OGG formats (MP3 recommend for broadest browser support). Note that a Mute button is added to the toolbar if audio content is use.