@Kraygoo7.
A very good question. I believe when " initially" learning a language that listening to new language at normal speed does little good. That is where I think LingQ is such a great tool…as you can listen to beginner dialogues about many different subjects. However once you develop an intermediate level of vocabulary and listening ability…listening to radio programs and T.V. programs in the new language greatly helps as you can understand a word or two , but more importantly you gain a comprehension of the “rhythm” of the language, allowing you to pick out separate words and phrases, that in the beginning sounded to you like an “aural blur”. I do not believe that listening to audio books of “novels” help much in normal conversation comprehension…as the descriptive language ( fancy adjectives and such) used are rarely used in normal conversation.