Nach roch i fuar is what it sounded like, but the answer contains thu instead of i
Definitely an u sound there, at least from the male speaker I heard.
For me it sounded like i too, even after I knew what it should be.
If someone were to reply ‘yes’ to the ‘negative’ question above, would it still be ‘bha’? And would the negative reply still be ‘Cha robh’?
For me it sounded like i too, even when I knew what it should be. And i makes good sense, as in "wasn't it cold?"