19 Multiple choice questions
- The combination of two or more speaker units in an audio sound system to reproduce the original sound picture.
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 diaphragm's movement.
- Essentially, electronic routing systems sensitive to different frequency ranges.
- Transducers using a coil of wire moving through a magnetic field to transduce mechanical energy into electrical energy.
- The signal leaving an electronic component.
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.
- The shape of the area in space to which a microphone is sensitive.
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."
wires, each insulated from the other, that run in tandem with each
other. The wires twist around each other to help cancel noise.
- These devices carry a permanent static electric charge.
A light material forced into motion representative of sound waves,
causing changes in air pressure analogous to those sound waves.
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
- A passive device that stores a small electric charge.
a network of wire mesh that runs eventually into the earth, surrounding
the wires, thus preventing any influence from electrical disturbances
in the environment.
- The signal entering an electronic component.
of mechanical energy that create voltage fluctuations by varying the
relative positions to each other of two conductors that have been
polarized using an electric current.
combination of two or more individual tweeters, midrange speakers or
woofers in a single speaker enclosure, with the proper crossover
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
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