To detect HTML5 audio MP3 support, use the Modernizr library.
As stated in the official specification −
Source − Screenshot from the official Modernizr documentation
For detecting HTML5 audio MP3 support, you can also check the User-Agent to detect which browser is used.
You can also use JavaScript to test −
var x = document.createElement('audio'); return !!(x.canPlayType && x.canPlayType('audio/mpeg;').replace(/no/, ''));