2014, April 18th You are right the fast one says "la torta". We should all report it, but keep in mind that the recordings are a lot harder to fix. So it may take a long time for them to fix. I must have double checked on the slow recording as I often do and I went with that.
The full speed says 'La' and the tortoise says 'Una.' Everyone agrees with this, on this post, BUT The Report button doesn't seem to work, on this lesson (sentence) so we have no clue as to whether DL have seen this. I try not to use the tortoise these days, as I can usually work things out, But this is impossible. I do lots of re-practice, and have to remember, that this phrase is just horrible. I write una, to get through, as I've been marked wrong so many times, but I guess in a perverse way, it makes you remember things, even better, when presented with a mistake! :)
Please report mistakes. Whinging here does no good. Go to 'Report a Problem' and maybe it'll get fixed. Yes, It's driving me crazy too. " Stop the clutter! Please do not report mistakes here and read the comments below and/or above before posting." This is what you see when you come to the comment page. There's a reason.