Screaming in babies ear

Does yelling around a baby cause them any harm? It’s bad enough my bf constantly starts arguments with me but he fucking yells around my daughter & even when she’s in his arms. She’s only 4 weeks old & I told him to stop but he can’t control himself. I even hold back on what I have to say just so he can stop talking but he just keeps going. You’d think he’d stop because he doesn’t know how it may be affecting his baby but nope, he’s so fucking selfish. She doesn’t cry or anything but u just never know long term how this affects her