Having two toddlers means I feel your pain! :) I ask for softer voices or try distracting them.

Sadly, this behaviour is normal for a baby this age.  Trust me, got it here too.  Your daughter is getting frustrated and is taking it out on your ears!!!!  As for stopping it, we haven't worked that out yet, but giving into the demands isn't a good idea, could cause longer term issues.  I mean, she might start expecting you to give in with everything and you end up giving in because you just want the peace back!

So with you on this one!  It is like having one big headache that you can't do anything about, but they do grow out of it, and then the terrible 2's hit!!!!!!

I don't think you will be able to get them to quiet down at such a young age.

I know our DS would scream and yell when he couldn't communicate verbally what he wanted. Could that be what is going on????

My 4 year old screams all the time..when he's happy. And of course sometimes when he's mad. We tell him all the time that it hurts our ears and if he's doing it to be mean he goes to time out. I don't know more can be done really..it's part of being a kid I guess! ;)

Is she doing it when she's happy and excited?

Unfortunately, kids don't come with volume control. My son is 3 years old and still loud!! He's just lately able to talk softer when we ask him, but then a minute later he's back to his loud volume again.

The best thing to do is speak softer so that you can model the behavior that you want her to copy and say "not so loud", or "softly". At 13 months, they won't understand this fully, but if you do this now, you may make it easier for yourself as she gets older.