this post has been editted to use macrons, using html eg ā is & amacr ; without the spaces as html, similarly the other vowels. But this trick cannot be used in comments. I suppose what you can do is to write a temporary post using this trick, cut and paste the macronised text, and then cancel the temporary post.
the main pronunciation question is how the uum of domuum is pronounced, versus say the ū of domūs, but I am interested in the entire pronunciation.
poring over the manuals, I crafted the sentence "hodiē iānuae domuum sunt ātrae", which maybe is wrong, but is supposed to mean "today the doors of the houses are black".
The first answer below by Unbrutal_Russian gives an audio recording which seems plausible as to how it should be pronounced. He says the m nasalises the preceding u of domuum, so in fact the uu is not 2 consecutive identical vowels, but the um is an indivisible code, and the consecutive vowels would be u then um.
Caeser is to specify which era of latin, first century BC.
I think confusion can occur with less often used things, and genitive plural of houses would be less often used. The 1425 words book, gives 29 nouns of the 4th declension where the genitive plural ending is uum, I dont see -uum in any other noun declension tables. The course book I am using so far has only mentioned 3 declensions, but the 1425 words book gives 5 declensions and a 6th, the indeclinables, of which it gives 3: fās, nefās, nihil = nīl.