URL of a sound that will be played for failed & unstable builds. Note that an HTML5-enabled browser, specifically with support for the new <audio /> tag, is required.

Relative URLs can be used for sounds that are included in the plugin, other sounds require an absolute URL.

Included sounds:

horse.wav

Troubleshooting

.wav & .ogg files are your best bet

Make sure that the URLs are accessible, i.e. they give "200 OK" or similar responses

If all else fails, firebug is your friend