Brooks XB 22 Ground Lift

A switch that breaks the connection between the ground point in one circuit and the ground point in another circuit.

Line Out (Line Output)
Any output that sends out a line level signal, such as the output of a console that feeds a recorder.

Brooks Cinema Projectors Grouping
1) Controlling the gain of several individual channels with a Group Fader.
2) The mixing together of several individual audio signals to send a mixed signal out of the console to record a track on a multitrack tape machine.

Acoustic/Acoustical
Having to do with sound that can be heard by the ears.
AcousticsThe behaviour of sound and its study. The acoustics of a room depend on its size and shape and the amount and position of sound-absorbing and reflecting material.

Brooks TM-22 Coax
Two-conductor cable consisting of one conductor surrounded by a shield.

High-Pass Filter
A device that rejects signals that are below a certain frequency (called the cut-off frequency) and passes signals with frequencies that are higher.

Direct box
Used in line to convert a high impedance signal into a low impedance signal.

Delay (Digital, Analogue)
1) Effect used to create echo…echo…echo…echo…echo…
2) In more advanced systems used in very large venues, delay can be used to time the arrival of the signal to the speakers in the back of the room so that people in the back hear the sound coming from those speakers at the same time that the sound coming from the speakers in the front of the room arrives.