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EDTV
- Abbreviation for Extended Definition Television. This
CEA (Consumer Electronics Association)-adopted term
(though originally mentioned in an April '99 Home
Theater magazine article by Mike Wood and Mike McGann)
is defined as those products that can display DTV images
as 480p or higher.
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Efficiency Rating - Level of sound output
measured at a prescribed distance with a standard input
power. Efficiency rating standard is 1 watt (2.83V at 8
ohms) at 1 meter over a specified frequency range and is
measured in decibels.
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Electrostatic - One of the oldest speaker
design principles, electrostatic speakers are generally
comprised of two (2) fixed perforated panels with a
constant high-voltage charge applied to them. In
between these two panels is an extremely low-mass
diaphragm to which the audio signal is applied, causing
it to move. There are variations on this construction,
but all electrostatic speakers are free from the magnets
and voice coils used in conventional speakers.
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Enclosure - The container of air that
surrounds the rear of a speaker driver.
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Enhanced
for 16:9 - See Anamorphic.
·
Enhanced
for Widescreen - See Anamorphic.
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EQ
- See Equalization or Equalizer.
·
Equalization - Loosely, any type of relative
frequency adjustment. Specifically, the process of
changing the frequency balance of an electrical signal
to alter the acoustical output.
·
Equalizer - A component designed to alter the
frequency balance of an audio signal. Equalizers may be
graphic, parametric, or a combination of both.
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External
Crossover - A standalone unit. |
