This room is covered with soundproofing material, so the sound doesn't leak outside.

He honked the car horn to get my attention.

The legend of Yamata no Orochi is deeply rooted in Japanese mythology.

The legend of Yamata no Orochi is particularly famous among Japanese myths.

He is not an ordinary human.

Infrasound is a type of sound that is inaudible to the human ear.

Debuccalization refers to the phenomenon in phonetics where a specific sound is pronounced outside the oral cavity.

Kunminjōon is a book for teaching the correct pronunciation of Hangul.

He is worried about his job.

Understanding the concept of 'Ha-line conversion sounds' is important in learning Japanese.