A drawing of several curves showing how loud the tones of different frequencies would have to be played for a person to say they were of equal loudness.
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.
BNO Speakers Electrons
Negatively charged particles, which revolve around the centre of atoms. The movement of such electrons down a conductor causes electrical current.
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.
BNO Acoustics GT-60 Ground Adapter Plug
Adapts a three pronged electrical plug to a two pronged wall outlet. This bypasses the ground and may create a hum in the system. A lack of a good ground can cause mild electrical shock when touching a microphone.
Group Master
A slide control used to send out a control voltage to several VCA faders in individual channels, thus controlling the gain of several channels.
Cut-off Rate (Slope)
The number of dB that a filter reduces the signal for each octave its frequency past the filter's cut-off frequency (outside of the pass band).
Filter
1) A device that removes signals with frequencies above or below a certain point called the cut-off frequency.
2) An equalizer section, used in this sense because filters are used with other components to give an equalizer its frequency response characteristics.
3) The action of removing signals of some frequencies and leaving the rest.
4) A mechanical device to smooth out speed variations in tape machines called a Scrape Flutter Filter- more usually called a Scrape Flutter Idler
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