WEBM is a somewhat more efficient format for the browsers that support it (not universal). But it isn't really necessary. Let's reduce our storage and app complexity by removing it, and just doing mp3.
remove code that creates webm, and that links to it for audio player
We create a derivative formed of stitching together all OH segments, for playing in the browser.
We originally created both an MP3 and a WEBM version, perhaps thinking that it was necessary to be playable in all browsers.
In fact MP3 alone can reach all browsers. https://caniuse.com/mp3
WEBM is a somewhat more efficient format for the browsers that support it (not universal). But it isn't really necessary. Let's reduce our storage and app complexity by removing it, and just doing mp3.