If you use a phone, video chat, etc. your voice kind of changes so that it's muffled, but when I hear "muffled" or "muffled by" I tend to associate it with something like the voices you make when gagged or smothered by a pillow (sorry for the dark example, but that's what comes to mind). Does anyone have any other words they think might work? I've thought of using "filtered" or "filtered by," but they seem more like something you would use to describe your voice if you used a voice modifier?