She is definitely being extra loud to get attention. Something I've learned about older people is that the older they get the more they revert to toddler-like behavior. They will do whatever it takes to get whatever attention they can get. Watched it happen with my great-grandmother, then my granny, now my parents and step-parents. My step-dad (who will be 97 soon) is the god-awful worst and a toddler would be preferable! My dad and step-mom (both 76) have discovered that gossiping and talking shit about everyone gets them attention (and one of the many reasons I cut them off) and my mom (74) calls me for 2 hour conversations every chance she gets and there is no way to cut the convo shorter without hurting her feelings- and she doesn't care what else you may need to be doing. Just like a small child any attention will do- good or bad.