WWW browsers on Windows, Macintosh and UNIX machines are frequently configured to play audio files with suffixes AU and AIF. Playing the files requires a machine with an appropriately configured sound card and WWW browser. Click here to hear an AU sound file.

Click on the figure below to hear an AIF file. (The following graphics and audio files are from "CircuitViz: A New Approach to Teaching Circuit Analysis," by E. R. Doering which appeared in the Special Issue of IEEE Transactions on Education. 39, CD-ROM folder 5, August, 1996. © IEEE. We thank the author, and IEEE Copyrights, for permission to use this material.)

To see how simple it is to include sound files in an HTML document, go to the View menu item of your browser and choose the Source item. Using your text editor, modify one of the hyperlinks so that it plays the sound file HINT.AIF that is included in the "audio" folder.

For information about plug-ins that permit browsers to play sound files, see, for example, http://www.netscape.com/comprod/products/navigator/version_2.0/plugins/audio-video.html.