N4 introduces more complex sentence structures and pitch accents compared to N5. Relying solely on reading the scripts in the book can lead to developing bad pronunciation habits. Hearing native speakers ensures you internalize the correct rhythm.
If you purchased the book recently, you might have noticed a shift in the publishing world. Nihongo Sou Matome N4 Audio Download
Good luck with your studies – * Gambatte kudasai! * N4 introduces more complex sentence structures and pitch
Simply downloading the MP3s and pressing "play" while you sleep is useless. Here is a for Sou Matome audio. Nihongo Sou Matome N4 Audio Download