Obviously there is a difference. However, I am very aware that if something can be monetized, someone will try to monetize and monopolize it. A few years ago, and possibly still today, the word Saga was trademarked. Disney has attempted to trademark common phrases and such in some cultures. Sony has made attempts. I'm certain Apple has tried. The Pokemon Company. Nintendo. A tiny Youtube creator uses their own music and one chord sounds vaguely like some song and they get demolished.

Don't think for a second that companies haven't sat in meetings and gone, "Do we think we can trademark the sound of a voice? Can we OWN that likeness?" These fuckers would privatize air if they thought they could get away with it. Sound pissed all you want, the reality is we've very likely dodged this bullet once or twice already, so we should be aware.