This speaker is way too quiet.
This speaker pronounces "thu" like "how" while others say it like "hoo/hu". Different dialects?
No, he's pronouncing "tha thu" naturally, which basically like the English word 'how'.
Iain sounds like Ineh. Maybe it's a particular dialect.
It sounds like the tha was unspoken and it sounds like how rather than thu. I think this sentence should be rerecorded.
No, see above.
The speaker seems to merge Tha and The into a single sound.
"Co as a how Iain" - Is this typical speech?