Directional Sound refers to the notion of using various devices to create fields of sound which spread less than most (small) traditional loudspeakers. Several techniques are available to accomplish this, and each has its benefits and drawbacks. Ultimately, choosing a directional sound device depends greatly on the environment in which it is deployed as well as the content that will be reproduced. Keeping these factors in mind will yield the best results through any evaluation of directional sound technologies.
Systems which guide evacuees during an emergency by the emission of pink noise to the exits are often also called "directional sound" systems.
Read more about Directional Sound: Basic Theory, Speaker Arrays
Famous quotes containing the word sound:
“Sophocles long ago
Heard it on the Aegaean, and it brought
Into his mind the turbid ebb and flow
Of human misery; we
Find also in the sound a thought,
Hearing it by this distant northern sea.”
—Matthew Arnold (1822–1888)