The only dinosaur we know that sounded accurate is the Parasaurolophus.Based on the crest used for communication from the discovery of the air passages, we know that the Para used it for communication.

Although even though we do know that the para's make sounds through their crests we have no way of knowing how the actually sounded. Considering how they have larger lungs than us humans and theres also the fact that they could have "songs", sort of akin to birds like, each species of birds have a different "song". So would Para's be the same? It may not be entirely true but its up to speculation!

Even if it isnt 100% accurate, it is definitely the most accurate sounds we have and may ever have of dinosaurs.

my fav hadrosaurid <33

cant wait for my para plush to arrive today :D