Dinosaur Sounds “Reconstructed “

[Stegotyranno420]

https://youtu.be/XcBoY_aEVj8
This was an interesting video. I highly recommend watching it!
I don't want to spoil the sounds or anything, so my comments will be in the spoiler tab

Spoiler

But I'm pretty skeptical on these, mainly for the smaller carnivores and Spinosaurus, especially the latter. Right of the bat, most folks will think this person did not put too much thought into the sound work. Except he did, he has many citations and references. I still have to read all of them, but I want your guy's opinion.   

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[JohannesB]

If there is any real (scientific) substance to this, I would be very interested to learn more about this kind of hypothesizing.

[Stegotyranno420]

It's in the video description

[GojiraGuy1954]

None of these videos ever take into account that Crocodiles can produce a sound like a roar, just not using a mammalian larynx, obviously;
https://youtu.be/jRgTk_qvsTw

I think it's most obvious in Muggers.

[Stegotyranno420]

@GojiraGuy1954 exactly.  This is why I was suspicious of this video. But as said before, this guy was very clear about his calculations.

[JohannesB]

None of these videos ever take into account that Crocodiles can produce a sound like a roar, just not using a mammalian larynx, obviously

Possibly the video's don't have to take that into account, because they are indeed not roars (but deep gurgles)?

[GojiraGuy1954]

None of these videos ever take into account that Crocodiles can produce a sound like a roar, just not using a mammalian larynx, obviously

Possibly the video's don't have to take that into account, because they are indeed not roars (but deep gurgles)?

They aren't exactly roars by definition "The loud deep cry of a wild animal, especially a lion or other wild cat" but they are most certainly roars

[Cretaceous Crab]

I always thought crocodilian guttural sounds were more like growling more than true "roar." But that's just me.

LOL, my 11-yr-old son and I just watched the video. His reaction:

"Dada, that's not what T. rex sounded like!"

[andrewsaurus rex]

an interesting study but highly speculative at best.  I don't doubt that dinosaurs probably didn't make mammal like sounds, eg roars.  I suspect many sounded like modern birds, eg chirps, squeaks and screeches.   An animal like T Rex may not have roared like a lion or a JP T Rex, but it still could have been able to make some sort of loud bellowing sound both to intimidate/startle prey and to broadcast its presence to rivals of the same species.  But that would be assuming individual Rex's each had their own territory eg a "pride" composed of a female with a haram of males.

However, if Rex lived in a big group, like a bask of crocodiles, then the need for making loud noises would have been reduced.

[GojiraGuy1954]

an interesting study but highly speculative at best.  I don't doubt that dinosaurs probably didn't make mammal like sounds, eg roars.  I suspect many sounded like modern birds, eg chirps, squeaks and screeches.   An animal like T Rex may not have roared like a lion or a JP T Rex, but it still could have been able to make some sort of loud bellowing sound both to intimidate/startle prey and to broadcast its presence to rivals of the same species.  But that would be assuming individual Rex's each had their own territory eg a "pride" composed of a female with a haram of males.

However, if Rex lived in a big group, like a bask of crocodiles, then the need for making loud noises would have been reduced.

Crocodylians are extremely vocal

[Papi-Anon]

Not gonna lie, the Dryptosaurus sounds made me laugh.

[andrewsaurus rex]

an interesting study but highly speculative at best.  I don't doubt that dinosaurs probably didn't make mammal like sounds, eg roars.  I suspect many sounded like modern birds, eg chirps, squeaks and screeches.   An animal like T Rex may not have roared like a lion or a JP T Rex, but it still could have been able to make some sort of loud bellowing sound both to intimidate/startle prey and to broadcast its presence to rivals of the same species.  But that would be assuming individual Rex's each had their own territory eg a "pride" composed of a female with a haram of males.

However, if Rex lived in a big group, like a bask of crocodiles, then the need for making loud noises would have been reduced.

Crocodylians are extremely vocal

but they're not vocal like a lion is vocal; a male lion's roar can be heard from several kilometers away.

[GojiraGuy1954]

an interesting study but highly speculative at best.  I don't doubt that dinosaurs probably didn't make mammal like sounds, eg roars.  I suspect many sounded like modern birds, eg chirps, squeaks and screeches.   An animal like T Rex may not have roared like a lion or a JP T Rex, but it still could have been able to make some sort of loud bellowing sound both to intimidate/startle prey and to broadcast its presence to rivals of the same species.  But that would be assuming individual Rex's each had their own territory eg a "pride" composed of a female with a haram of males.

However, if Rex lived in a big group, like a bask of crocodiles, then the need for making loud noises would have been reduced.

Crocodylians are extremely vocal

but they're not vocal like a lion is vocal; a male lion's roar can be heard from several kilometers away.

They still make sounds like that

[andrewsaurus rex]

right, but my point was a dinosaur's lifestyle could very well influence the sounds it makes, both in type and volume. ie a territorial T Rex could well make much louder sounds than a more sedentary lifestyle T rex.  Since Rex was such a large animal and would have required lots of food, it, in my view, probably hunted over a large territory, much like large mammal predators do today.  And that could indicate it may a loud bellowing sounds of some type to announce its presence and scare off/intimidate rivals and other carnivore intruders.

[spinosaurus1]

https://youtu.be/I4lUdG1k-0U

[andrewsaurus rex]

somewhat off topic but interesting nonetheless, the 10 loudest animals.  Some pretty surprising entries, including the #1 ranked Tiger Pistol Shrimp.

https://www.australiangeographic.com.au/topics/wildlife/2012/08/the-10-loudest-animals-on-earth/

[Stegotyranno420]

Part 2, Jurassic Period

I must say, I find this one to be more impressive than the previous, overlooking the mistake at the end.
I believe in this one, crocodile sounds are utilized
Let me know your thoughts

[GojiraGuy1954]

Why is the Liopleurodon making cetacean sounds?

Also, I seriously doubt that only Theropods and Ankylosaurs posessed incredibly similar larynxes. They really are not closely related groups. Unless by some miracle of convergence they both developed an insanely similar structure simultaneously, i'm going to have to say it was a more basal trait akin to feathering on dinosaurs.

[Eatmycar]

Well I can't speak much for accuracy, but damn, that Dilophosaur sound is absolutely creepy. The Isle's was my standard for good Dilo sounds but this, oof. Stellar.

[Stegotyranno420]