Brooks HI FI projectors Echo Chamber

1) A room designed with very hard, non-parallel surfaces and equipped with a speaker and microphone.
2) Any artificial or electronic device that simulates the reverberation created in a room.

Board
1) Another, less formal, term for Console.
2) A set of controls and their housing which control all signals necessary for recording and for mixing.
3) A slang shortening of the term Keyboard Instrument.

Brooks RM 909 Cardioid Pattern
A microphone pick up pattern, which has maximum pick up from the front, less pick up from the sides, and least pick up from the back of the diaphragm.

Condenser
An older term meaning the same thing as Capacitor (an electronic device which is composed of two plates separated by an insulator and can store charge) but sill in common use when referring to a microphone's active element.

Brooks Hi Fi speakers Generating Element
The portion of the microphone that actually converts the movement of the diaphragm into electrical current or voltage changes.

Keyboard
1) Any musical instrument controlled by pressing a key.
2) The part of the computer that has the keys.

Expander
A device that causes expansion of the audio signal.

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