No, quarks are not made of sound. Quarks are elementary particles and one of the fundamental building blocks of matter. They are considered to be point-like particles, meaning they have no size or structure that can be described in terms of familiar concepts like sound waves. Quarks are believed to be indivisible and have no substructure. They are typically studied and understood through the framework of particle physics, which involves mathematical models and experimental observations rather than concepts related to sound or everyday experiences.