Sound Field
a region in space in which sound waves are propagating, that is, where acoustic vibrations of the particles of the solid, fluid, or gaseous elastic medium filling the region occur. A sound field is completely defined if for each of its points the temporal and spatial variation of any of the quantities that characterize a sound field—the displacement of a vibrating particle from its equilibrium position, the vibration velocity of a particle, or the sound pressure in the medium—is known; in certain cases, changes in the density or temperature of the medium in the presence of a sound field are of interest. The concept of a sound field is usually used for regions having dimensions on the order of, or greater than, the wavelength of the sound.


我實在看不出這定義和我們的聽覺有多大關係.

依這定義,我倒以為sound field 被誤用了..