The word value is used a lot. Most people don't even know what it means. Value is used to create a focal point within a drawing or painting (art wise).The human eye is immadiately drawn to a light element against a dark element. To create the illusion of depth, gradiations of value are also used.
Explanation:
Value is defined as the relative lightness or darkness of a color. It is an important tool for the designer/artist, in the way that it defines form and creates spatial illusions. Contrast of value separates objects in space, while gradation of value suggests mass and contour of a contiguous surface.
Answer: Nominal level is the operating level at which an electronic signal processing device is designed to operate. ... It is important to realize that the measured level is a time average, meaning that the peaks of audio signals regularly exceed the measured average level.