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SIBILANCE
The
distortion
caused
by loud high
frequency
signals,
such
as
the
"Ssss..." sounds in hinnan speech.
SHELVING
Describes
an equalization action where all frequencies above or below
a
particular frequency are boost or cut.
SLOPE
In a filter or equalizer,
a description of the rate of boost or attenua¬
tion.
Usually specified in dB/octave (6, 12, 18, and 24dB/octave slopes
are most common).
The steeper the slope, the higher the "Q" in a filter.
THRESHOLD
An arbitrary signal level, above which a limiter or noise gate activates.
TRANSIENT
A sudden burst of energy in an audio signal,
such as a breath blast in a
microphone,
the
sound of a snare drum,
or a deep scratch in a
record.
Transients
frequently
reach peak levels of 10 to 30 dB
above
standard
operating level, and may cause distortion or even damage to equipment.
UNITY GAIN
Output level = Input level.
VGA
Voltage
Controlled
Amplifier.
An amplifier capable of both
gain
and
loss, controlled by a variable DC voltage.
WIRING, PHONE PLUG AND XLR
A stereo phone plug is wired + to the tip,
- to the ring,
and shield to
the sleeve. For a mono phone plug, combine - and shield, and connect both
to the sleeve.
An XLR (3 Pin) connector is wired + to pin 3,
- to pin 2,
and shield to
pin 1.
SIeeve
Mono Phone Plug:
(for unbalanced
inputs and outputs)
Stereo Phone Plug:
(for balanced in¬
puts and outputs)
XLR Type Connector:
(Male Shown)
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