Does the embed iframe code have attribute option to make it unmuted?

here is some embed iframe code that has attribute value of allowing full screen. When loading it is automatically muted, the audio is muted. Is it possible to make it unmuted when loading with iframe attribute?
<iframe style="width:640px; height:480px;" allowfullscreen src="https://example.com/embed.html"></iframe>

Try to add unmute as value