Raspy little howl on Chi boy..

Raspy little howl on Chi boy
Hello, it’s me again the girl who is notoriously worried about her little guy Otis 😅 He does a little howl when I say the name of my best friend’s dog Rolo, and when he hears ambulance sirens. I just wanted to ask if it was normal for a chihuahuas howl to sound a bit raspy? I’ve noticed this from the beginning. We did have a period of quite bad reverse sneezing, which seems to have calmed down significantly now. I took him to the vets over it out of fear of a collapsed trachea, but vet told me not to worry. I am just posting this to get some opinions in first.

Please any Reddit Karen’s know that I only started saying “Rolo” for this video and don’t sit there all day making him do it because that would understandably make his little voice hoarse. I absolutely love him more than anything in the world and he gets treated like the sweet prince he is. Also, please ignore the mess we are having a spring clean!