Eclipsis and lenition are significantly more complicated that we have presented here. There are three different valid systems in the current edition of Official Standard Irish, accounting for established practices in different dialects. There's no way we could teach all of them without confusing the pants off people, so our grammar notes and exercises stick to a single system only (the one which, traditionally, was the only one accepted in Standard Irish). But we are trying to build the course so that valid answers will not be marked wrong if someone enters them.
That said, this exercise is buggy. It should be accepting "Tá brón ar an fhear" as a valid response if someone chooses to type it in as a translation for "The man is sad", but it shouldn't be showing this to learners otherwise. We will report this to the Duo staff.
Why cant you have the voice speaking in irish as it would greatly help in learning hiw words are said + sometimes its very hard to understand that woman...
You ask questions that we havent been even taught the word yet and expect us to miraculously know it, last time i learned irish was in 3rd class and was excempth from it
The issue is that they used an actual human to record the audio. And they had to have it done twice (the first speaker was clearly a non-native, and often pronounced things horribly wrong) and you'll actually see some older, now invalid, comments that refer to the original speaker. Sadly, it's a pain to locate them to delete them.
As for listening, I suggest going to Teanglann.ie. They have audio of a lot of words. After that, listen to Raidió na Gaeltachta (not any of the other ones) and you'll start to get a feel for what native Irish sounds like; it's often a lot different than what people hear in school, as a lot of non-natives don't make native distinctions.
One dialect accepts lenition as the correct and another dialect accepts eclipsis as correct.
with the singular article: eclipsis (except d, t) ar an mbord = on the table
- only in Munster also d,t are eclipsed
- in Connacht t-prefix preceding femin. nouns with s-: ar an tsúil = on the eye
- in Ulster always lenition: ar an bhord