A friend of mine had a cat named Pickles who always went "Bdddddrp?" as he raised his head to be petted. Came up on his hind legs. Sort of a purring call. He was a gray Siamese with blue eyes. Very mellow guy.

Matilda just squeaks. Rarely. She can cry if she's in trouble (sort of weaky), but otherwise it's just a tiny squeak. To indicate excitement, mainly.

She can definitely hear okay. Maybe she's just shy? When she's in a good mood lying beside me, I'll say hello & she just goes through the motions. No sound, though.