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OAR
(Original Aspect Ratio)
- The aspect ratio in which the source material was
originally produced.
·
Octave
- The difference between two frequencies where one is
twice the other. For example, 200 Hz is an octave
higher than 100 Hz. 400 Hz is one octave higher than 200
Hz.
·
Off-Axis
- Any listening, viewing, measuring, or recording
position that is not directly in front of the forward
axis of a TV set, loudspeaker, or microphone.
·
Ohm
- A measure of how much something resists (impedes) the
flow of electricity. Larger numbers mean more
resistance.
·
OLED
- OLED stands for Organic Light Emitting Diode. OLED is
an outgrowth of LCD technology that uses organic
compounds to create images, without the need for extra
backlighting. As a result, OLED technology allows for
very thin display screens that are much thinner than
traditional LCD and Plasma screens.
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Optical
- Optical is used in Home Theater any time an electronic
signal is converted to waves of light. This is used in
the optic pick up (laser) on a DVD or CD player. It is
also used for Toslink or optic cables to connect audio
components together.
·
Optical
Digital Cable
- Fiber optic cable that transfers digital audio signals
as light pulses.
·
Out of
Phase - In
electronics two cyclic motions are out of phase when
they're not at the same part of their cycle at the same
time. Speakers are out of phase when they're hooked up
incorrectly, one speaker has the polarity reversed in
the speaker's connection to the amplifier.
·
Output - The
sound level produced by a loudspeaker.
·
Overdamped
- Pertaining to the audible effects of excessive woofer
damping.
·
Overload
- A
condition in which a system is given too high of an
input level. A common cause of distortion or product
failure.
·
Oversampling
- Digital playback equipment such as DVD or CD players
might oversample by increasing the sample frequency (the
frequency from which it reads information from the disc)
several times. The desired outcome is better sound, a
sort of false higher resolution from a 16bit sample.
This was a popular advertised feature years ago on CD
players but has since fallen out of favor so you'll
rarely see electronics exclaiming "oversampling" as a
bonus feature. There is no empirical evidence the
technique provides any better sound. |
