"Who are you?"
Translation:Quis es tu?
There's sound when the original sentence you're given is in Latin (so if you were given "quis es tu?" to translate to English), not when it's translation from English to Latin. For that, if you have the tiles, you night have sound on some of them, but I think it's expected to not have it on all of them (the ability to record audio for single words is pretty new).