ro/robh listening choice
I think in Hobbies 2, a listening choice is offered which included both ro and robh - I clicked on both, having heard the original recording, to try to decide which it was, and they were, at least to my ear, identical. I opted for the wrong one - then I'd to try to remember which I'd selected, for when that question reappeared at the end of the lesson. I think I got lucky the previous time the same options appeared. These tasks don't seem to have a comment option???
Me again, same topic. I listened umpteen times, turned the volume up, it's the same speaker for both possibilities, and I chose wrong again. It's the typically early in a lesson multi-choice from four words, "which do you hear?" I have no problem identifying whether it's ro or robh for writing or in reading, context makes it absolutely clear, but I still hear absolutely no difference, in this particular recording, between the two utterances. I wish I could post a snip to show which task it is, but I can't. C'est la vie.
Okay, so I've disabled it for the time being. I think the difference between ro and robh is a bit hard to notice in the recordings if you're not used to it, but there is a difference there. We can't rerecord any audio at the moment as we're waiting for Duo staff to fix a bug, but we'll get it sorted as soon as we can.
It's a tough one to try and explain in writing, but the difference is ro has hard 'r' sound, that comes from the front of your mouth, whereas robh has as a softer 'r', that comes from the back of the mouth.
It happened to me too. At first when i clicked at "ro", it seemed identical to the original recording to me, and when i clecked on "robh", I didn't hear any sound. So I reported it as "My answer should be accepted". But then I tried again to listen to both sounds, and when I listened very carefully, it seemed to me, that there is a very slight puff at the end of "robh", which isn't there in "ro". It is rather indistinct, though.
Word to the wise: the individual words aren't always recorded by the folk who record the sentences. Most of the individual lexemes were done by the same 3 or 4 speakers, and I think there were close to a dozen speakers total. As said above though, 'robh' and 'ro' are never interchangeable, so eventually it'll click as to which one you need :)