Definitions for "Loudness Control"
Keywords:  boost, ear, compensate, poorer, volume
An equalization curve to compensate for the inability of the ear to hear low and extreme high frequencies at low levels.
A separate control or, more commonly, a switch-selected addition to a volume control, that causes bass frequencies to be amplified as the overall volume is turned down. The idea is to compensate for the fact that the ear becomes progressively less sensitive to bass at low sound levels. See: Equal Loudness Contours.
A volume control which compensates for the poorer frequency range of the ear when listening to lower sound levels. A loudness control boosts the LF & HF at lower signal level.