Translation:The text is long.
Le text est lent? Sounds the same.
You have to think of the context, it would be weird if it were "the text is slow".
The girls voice definitely said la, no le.
And the guy sounded more like he was saying "leur" than "le"!
I had no idea what the speaker was saying for the last word. I could not understand. I wrote "Le texte est ???" That has never happened before.