Is the "Det," pronounced correctly in the fast TTS? It sounds almost like a "Je," to me.
What about the hur? It sounds like Hooooour
Sounds really off to me as well.
It's because of the r in kostar. That makes the d in det become a little softer.
Shouldn't it be "Vad kostar det?"
I guess that would be "what does it cost" rather than "how much"
one of the first Swedish sentences I learned way back many years ago after "hej" and "hallå".