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:: A :: |
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Acoustic absorber |
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Those are materials which
absorb sound and retain it, such as upholstered furniture placed around
the room, drapes and carpeted floors. |
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Acoustics |
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That is the science that
studies sound behavior and its patterns; the term ‘acoustics’ also
refers to a room’s audio resonance quality. Rooms with poor acoustics
produce too much echoes which distort the original sound or allow too
much exterior noise in. |
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Acoustic suspension |
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A feature found in speakers
with a sealed encasing which is designed to utilize the air kept in the
speaker’s cabinet to strengthen the motion of its woofer, this in turn
enhances the sound produced by the speaker. |
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Active |
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An active cross-over is electrically powered and divides the
line-level signal prior to amplification. An active speaker is the
kind which incorporates a built-in amplifier and an active
crossover; this is usually seen in subwoofers, as they must be
plugged to an electrical outlet to make its built-in amplifier work. |
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AM |
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Amplitude modulated |
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Anamorphic |
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An original recording format in
a movie, like 16:9 which is anamorphically changed to fit in a standard
4:3 format; the picture’s original geometry is re-established on
playback. The process of changing picture size it’s much like butchering
the original image. This original format is usually 16:9 or also called,
Widescreen. |
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Analog |
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A device or signal which has
the attribute of constantly varying voltage, audio or strength. It is an
analog of the acoustical waveform and it is continuously variable. A big
difference between analog and digital signal, in which binary coded ones
and zeros characterize audio and video data. |
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Analog display |
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A video display capable of
representing a permanent range of colors and shades, instead of discrete
values. |
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Aspect ratio |
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The width to height ratio
applied to screen type and size. Standard TVs have an aspect ratio of
4:3 (1.33:1); widescreen TVs which display correctly High-Definition
signals, have an aspect ratio of 16:9 (1.78:1). |
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