Question about squeaks meaning

There's two kinds of squeaks I was curious if someone knows what they mean.

The first one he makes it t random, but it is like a gentle "hmph! hmph, humph" like a small trumpet, and it usually trails off. He tends to do it when he's in his cage and I suppose it means he's content?

The second is similar to the first, but right before doing it he tenses up and makes a smacking sound, like you're clicking your tongue. Then he makes three squeaks and calms down (They're not barks). He usually makes this sound when he's under a cupboard and I'm trying to get him out, but also sometimes at random when I'm not bothering him. So I don't know if he's scared, annoyed, wants me to leave him alone or want me to pay him attention.

I don't have any video at this time because I didn't have my phone ready when he makes those sounds and he tends to do them randomly. But still if anyone knows what they'd mean I'd appreciate it since they didn't sound like any of the videos I checked \^\^