91影视

The phenomenon in which the traveling sound wave moves around the edge of an object when the size of the object is either smaller or equal to the wavelength of sound is known as diffraction. In this phenomenon, the intensity of sound gets redistributed in the region.

The diffraction angle for a sound wave of wavelength and emitted from the sound source having aperture diameter a is given as-

$\mathrm{蝉颈苍胃}=\frac{\mathrm{位}}{\mathrm{a}}$

From the above relation, it is clear that the source having a low aperture diameter will have a more angular distribution range.

The tweeter is more effective for distributing high-frequency sounds uniformly over a room than the woofer because it is of small diameter which makes the diffraction angle or distribution angle large and the distribution of sound uniform.