Parasaurolophus

Here's a theory- you know how Parasaurolophus had a skull that could create sound( like a trombone for instance)- and it had soft tissue on the side of said skull- what if it had air sacs or flaps that inflated? Like a frog throat? What do you think? It could have used this for mating or warning signs, i.e., seeing a predator and it would puff these out to look bigger and strong vice versa.