(1) The total number of stepped levels, from noise floor to saturation, that an A/D has available for assignment of the continuously varying analog input voltage with each sample taken. For example, if each sample has a bit depth of 10, there will be 210, or 1,024, quantizing increments.

(2) The voltage or decibel difference between any particular quantizing step and the next step higher or lower. In a system with 210, or 1,024 discrete steps, if signal voltage from noise level to saturation varies from 0.0V to 1.0V, each quantizing increment will correspond to about 0.001V. See dynamic range, sound pressure level.