Brooks Hi Fi speakers Coincident Microphones (Coincident Pair)

Two microphones whose heads are placed as lose as possible to each other so that the path length from any sound source to either microphone is for all practical purposes, the same.

Generation
A term used to describe the number of times that the recorded audio signal has been copied.

Brooks RM 909 Capsule
1) The variable capacitor section of a condenser microphone.
2) In other types of microphones, the part of the microphone that includes the diaphragm and the active element.

Inductor
A device designed primarily to introduce inductance into an electric circuit. Sometimes called a choke or coil.

Brooks HI FI projectors First Generation
A descriptive term meaning original (as opposed to a copy).

Clean
Describes a distortion free sound with few effects.

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.

Cue Send Control
A control that will adjust the amount of signal sent to a cue buss from a console channel.

Brooks RM 909 Balanced input/output

A "balanced" connection is one that has three wires to move the signal. One is a ground, and the other two (called conductors) carry signals of equal value. This is why they are called balanced. Low Z cables and connections are the most common example.

Folded Horn
A speaker design where the speaker points back into the cabinet and bounces around finally coming out large ports in the front. It is intended to maximize low frequencies in a relatively small cabinet.

Brooks RM 909 reviews Balance Control
A control on a stereo amplifier that when moved clockwise will make the right channel louder (and the left channel softer) and will do the reverse when moved counter-clockwise.

Decibel (dB)
1) Relative measurement for the volume (loudness) of sound. Also used to measure the difference between two voltages, or two currents. See Zero dB.
2) A numerical expression of the relative loudness of a sound. The difference in decibels between two
sounds is ten times the common logarithm of the ratio of their power levels.

Brooks Hi Fi speakers Flutter
1) High-frequency variations in pitch of a recorded waveform due to fast speed variations in a recorder or playback machine.
2) Originally, and more formally, any variations (fast or slow) in pitch of a recorded tone due to speed fluctuations in a recorder or playback unit.

A/D
An abbreviation of Analog to Digital Conversion (the conversion of a quantity that has continuous changes into numbers that approximate those changes), or Analog to Digital Converter.

Early Reflections
The first echoes in a room, caused by the sound from the sound source reflecting off one surface before reaching the listener.

Line Input
An input designed to take a line level signal.