Chiku was walking in the bamboo forest.

Shu is collecting stamps as a hobby.

My blood pressure is normal.

My grandfather has been suffering from high blood pressure for many years.

Changes in atmospheric pressure can cause headaches.

Acoustic phonetics is the study of the physical properties of speech.

Articulatory phonetics is a study about the production of speech sounds.

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

He honked the car horn to get my attention.

The treble clef is often used in musical scores.