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Tera (T)
- A prefix meaning 1012
or 1,000,000,000,000 (one
trillion in the US). |
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Threshold of
Pain (in dB SPL) - The
minimum value of sound pressure
of a given frequency that will
cause pain to a listener 50% of
the time. Discomfort begins at
118 dB SPL Actual pain starts
around 140 dB SPL within the
frequency range between 200 Hz
and 10,000 Hz. |
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TOC / Table
Of Contents - The subcode
information which contains track
numbers and times. |
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Total
Harmonic Distortion (THD) -
The noise referenced to signal in
decibels (dB) as a percentage.
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Tracking
Servo - The control circuit
used to keep the pick-up over the
desired track. |
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Transducer
- A device used to convert energy
from one form to another.
Acoustical to electrical
(microphone), electrical to
acoustical (speaker), and
electrical to mechanical (Aura
Bass Shaker) are three examples
of transducers. |
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Transistor
- A three terminal device used
for amplification and switching. |
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Tuner - A
component (or section of one)
that receives radio signals and
selects one broadcast from many. |
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Tweeter -
A high frequency driver
specifically designed to
reproduce only the high
frequencies (treble) of the
audible spectrum. |
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