Trigger that plays audio: Does audio still get downloaded if the trigger doesn't get triggered?

A button has a trigger that if the button is clicked an audio file plays (generated by text to speech).

I was wondering: if a user does not click the button, does the audio file then still get automatically (down)loaded onto the user's computer?

The idea behind the question: people with a poor Internet connection can choose not to click the button and skip the audio. But if the audio gets loaded irrespective whether the button gets clicked, that wouldn't solve it.