feature: status: use tags: gtie8 polyfill kind: html polyfillurls: mediaelement.js, Sound Manager 2
As is the case with video, you can provide your audio in multiple formats. But it’s not necessary if you only target modern browsers. See browser media codec support in 2018, or mdn browser compatibility tables.
A polyfill is only needed for IE8 and below. Sound Manager has an extensive API for further customization. mediaelement.js offers the HTML5 media element API through Flash in the fallback case and offers uniform styling across browsers and to the Flash widget.