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Transducers of mechanical energy
into electrical energy by the use of crystal salts or ceramics
(piezoelectric material) that, when their shape is distorted by changes
in air pressure on a diaphragm, produce minute voltages.
Places electrons on one side of a
capacitor attached to the diaphragm of a condenser microphone. The
action of the diaphragm forces some of those electrons to cross from one
side to the other of the capacitor, dependent on the force of the
A crystalline material (usually
made of germanium). It is a non-linear amplifying element used in almost
all audio circuitry today. Great effort must be made to reduce
distortion introduced by these devices in order to make their output
linear, or like the original signal, only louder.
The amount of increase of current
allowed to flow through a circuit. Incorrectly called "volume," since
that is a sensory judgement made about sounds and has little, if
anything, to do with an electronic circuit.
refers to the kind of cabinet
that any kind of speaker is mounted in. A speaker is mounted in the
front of a box. Vent holes are also placed on the front to allow
reflected and reinforced sounds from inside the box to combine with
those emanating directly from the front of the speaker.
Refers to the cabinet in which a
speaker is mounted. An airtight, sealed box, that is responsible for
returning the speaker cone to its neutral position using the air
pressure contained within the cabinet. These are sometimes called
"acoustic suspension speakers."
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