Simplified the speed plugin to handle speed changes on click instead of a menu.
<script src="/path/to/mediaelement-and-player.js"></script>
<script src="/path/to/speedchange.js"></script>
const player = new MediaElementPlayer(
document.querySelector("audio"),
{
defaultSpeed: '1.00',
speeds: ['1.25','1.50', '2.00'],
features: [
[...],
"changespeed"
]
});