Feature request: Real life recordings?
Wouldn't it be nice to use audio recordings from real persons? I'm about half way through the Spanish course, and sometimes the computer generated voice does have some challenges when there are tiny nuances. So like "él la diga" vs "ella diga". Maybe that's a bad example.
TTS is a good feature for most of the course, but maybe additional real voices could add value. And Duolingo already has big communities of native speakers in the languages it teaches.
It would probably be a lot of work to add real voices. I think the computer generated voice in Spanish is very good. French has been a little harder for me, but I have not really started on the lessons yet.
Do you use the slow button? It has sometimes helped me to be able to distinguish whether it's one word or two (or three). Also, "él la" and "ella" are pronounced very differently to me because ll is pronounced like a y in English.
Most native Spanish speakers here say the Duo voice is pretty good, overall.
In Spanish he 'y' and 'll' are pronounced as a 'y', a 'j' or a 'zh' in different countries and by different people. In Argentina both are always 'zh.' Stand on a street corner in Mexico and you will hear 'yo' as yo, joe, and zho among three natives in conversation. There are also a couple of Spanish programs that intentionally run words together, because that is what natives (of most languages) do.