Dictionary
pre•em•pha•sis
Pronunciation: (prē-em'fu-sis), [key]—
n. Electronics.
a process of increasing the amplitude of certain frequencies relative to others in a signal in order to help them override noise, complemented by deemphasis before final reproduction of the signal being received.
Also,pre-em'pha•sis.Also called
emphasis, predistortion, preequalization. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.