Patent ID: RE43132

Claim:
A motion picture soundtrack reproduction system, the system having a center front soundtrack channel and a plurality of other soundtrack channels, comprising : a controller having a volume control for adjusting the a gain of all the channels for the center front channel and a gain for the plurality of other channels , the volume control having a range of settings from a minimum to a maximum, the controller having a first output for controlling the gain of the center front channel and a second output for controlling the gain of the plurality of other channels in response to settings of the volume control, the gain of the center front channel having a first relationship to the volume control settings and the gain of the plurality of other channels having a second relationship to the volume control settings, the first relationship and the second relationship s being such that for a range of volume control settings less than a first setting the gain of the center front channel (1) remains substantially constant while the gain of the plurality of other channels decreases as the a volume control setting decreases below said first setting , or (2) decreases more gradually than the gain of the plurality of other channels as the volume control setting decreases below said first setting .