Loudspeaker-positioning device for controlling the linear position of a loudspeaker, comprises control input generator for applying set point value to incoming audio signal, to reduce linear and non-linear distortions

摘要

A linear optical path sensor (8) and a source of light link to a loudspeaker (7) to produce a system without inherent vibrations over a large volume range. A set point value (3) is applied to an incoming audio signal (1) via a control input generator (2). A subtracter determines standard tolerance (5) from set point and actual values.