I'm developing an independent cartoon web series with talking dragons. The designs of the dragons in Spyro (especially the Legend of Spyro) is one of the main influences in how I want my dragons to look. But despite its cartoony nature, I want to take a realistic approach to what their voices would sound like based on the shape of their heads (assuming they have human-like vocal cords).
Here's an example of what they might look like. It's Spyro and Cynder from Dawn of the Dragon.
Notice the shape of the face. Wide mouth and medium length snout. What would a voice sound like coming out of that kind of face shape? Assuming the pitch stays the same and only the quality of the formants (resonance) change. Would it be deeper than a human's voice? The opposite? Would the basic vowel sounds (ah, eh, eeh, oh, ooh) sound different? If so, what would each vowel sound like? I'm fascinated by how the sound of the voice is affected by the shape of the throat, oral and nasal cavities, so I'm not sure I want to just give them human voices like all the other talking dragons. I'm also just genuinely curious.
Edit: They're about human-sized. The shape of the throat, nasal cavity, and oral cavity would probably be similar to that of lizards or dinosaurs. They also have lips and teeth somewhat similar to that humans, but still clearly not human. I'm just wondering what their voice would sound like if their nasal and oral cavities were longer than those of humans. Also, it's "formants", not formats. If you don't know what formants are, they're the actual phonetic quality of the voice -- that is, the resonance. The formants of the voice would be different if the oral and nasal cavities and throat were bigger, but the pitch would stay the same if the vocal cords were the same size. Pitch is determined by the vocal cords, and the resonance (or formants) are determined by the shape and size of the oral cavity, nasal cavity, and throat.