Baby turning head towards sound

Rachel

So I know my LO can hear, because if there is a loud noise or something he definitely startles. However, I'm not necessarily noticing him turning his head towards my voice and other noises like he's supposed to be at 2 months. I've been testing it lately, where if he has his head turned to one side I'll go to his other side and talk and say his name and he doesn't turn towards me 😞. Anyone know if this is a bad sign?