Shouting baby..

Ali

My 9month old son has been shouting a lot. Shouting as I'm playing and when he's happy, he'a been shouting by straining his vocal cords and am concerned about his throat, voice and irritated both at the same time. I don't know what to do, how to stop him, is it normal and how to go about it? Please guide and help. Thanks a lot for your time and response.