Sound mute/unmute in viewer api

Is there any method to mute and unmute sound in viewer api using event listener or by any other method.

There isn’t for now.
Could I ask what is the use case ?

I have embedded viewer api in my site , i want to play model in mute mode.

Why not mute the model using “3d settings” ?

Can 3d settings be controlled using javascript ?

some but not all see API documentation Viewer API - Functions - Sketchfab

With iFrame you can add &sound_enable=0 to the embedding URL of your sketchfab model. Maybe this will also work for the viewer api