Good morning, I was able to verify that that file they gave me to do the tests was not an ogg type file and that was the reason why I had from the browser this behavior. So this question is resolved.
I take this opportunity to ask a couple of questions:
when I pass the URL to the broser this file automatically autoplays. I would like it not to start automatically but for the operator to choose with the mouse to start listening to the spoken voice
Is there a possibility to intervene from program on the commands ( play, pause and mute ) of the vowel ? I would like to be able to pause or start listening to the vowel under certain conditions
Because you are loading the file as-is, the browser generates HTML/JavaScript and automatically starts playing, that's the default behavior. The video tag automatically adds "autoplay". If you want to deviate from that, you will need to construct HTML/JavaScript yourself, save it to a file and and use that file as a reference instead.
The TTMSFNCWXAudioPlayer is an embedded browser that utilizes the HTML audio tag. It has an AutoPlay property that is disabled by default so the first part would be resolved with it.
As for the second part, it has Play and Pause methods to start and stop a loaded audio file. You can mute the audio by setting the Muted property to True (or by setting the Volume property to 0).
It also has OnPlay, OnPause and OnVolumeChange to detect changes.