👉 Thickness of sound refers to the perceived opaqueness or density of an auditory scene, where a louder and more complex sound can mask softer or simpler ones; it's often associated with sounds like thunderstorms or traffic where multiple distinct noises occur simultaneously, making individual components harder to isolate. In contrast, thin sounds are usually clear and detailed, like the chirping of birds or the rustling of leaves, allowing each component to be distinctly heard without interference from more dominant sounds.