I have an audiobook (meant for beginners learning Spanish) where the speaker has an accent I don't recognize. I know that in Spain some z's and c's are pronounced like an English th (IPA: ⟨θ⟩). But in this audiobook even many s's sound that way to me. For example, he pronounces "está cansado" like "eθtá canθado", or "su sueño" like "θu θueño".
I also heard another word that sounded odd. "tortilla" was pronounced so that the ll had a distinct l (ell) and y sound. Sort of like: tor-til-ia.
Perhaps I should upload some audio snippets.
Does this sound familiar to anyone? To me it almost sounds like someone is trying to fake like they are from Spain and doing a bad job of it! If so, I will stop listening to this audiobook.