Brooks Cinema XR 607 Ground Lift

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

Contact Microphone
A device that senses vibrations and puts out an audio signal proportional to the vibrations.

Brooks XT 20 Frequency
The number of cycles of a waveform occurring in a second.

Hard Disk (Hard Disc)
A storage unit for digital data that has rigid disks coated with magnetic material in a housing that includes the drive mechanism.

Brooks KS-55 Final Mix
The two track stereo master tape which was mixed from the multitrack master.

Half Step
A pitch difference of the amount that is present between adjacent keys on a piano.

Far Field
The area from 3 feet away from the sound source up to the critical distance.

Dynamic Mic
Robust type of microphone which picks up the sound on a diaphragm connected to a coil of wire which moves within a magnet. An alternating current is induced into the wire which provides the electrical output. Most dynamic mics have low output impedance of 200 Ohms. See Condenser Mic.