How to share audio as voice message via Whatsapp from web (Universal Link)?

I have some audio files (mp3) hosted in a server, and I’d like to add some web functionality to share them via WhatsApp as an audio message.

I’ve been able to share texts succesfully with the following code:

whatsapp://send?text="TEXT_TO_SHARE"

but if I put the mp3 url where the “TEXT_TO_SHARE” part, it is just linking it as plain text (the url), instead of as audio (with its Play button and so).

I’ve tried with several file formats (.mpeg, .ogg), but same failed result.

Reading this documentation, it seems that the only parameter available after the what sap://send? part is text, although I was expecting something like audio or media. I’ve seen that sharing audios is be possible with the Business API “framework”, but I’d like to do it from a simple HTML. I think that the concept is named as Universal Link (doc) but I haven’t found any way to build that universal link for audio messages.

Please, do you know if it’s possible to do it? Thanks!