Will trim a signal
within a threshold so
that you will only get
the desired signal.
(When an input signal
falls below the
threshold level, the
gate will mute the
signal)
Threshold-
When the
signal falls
below the
threshold, the
gate mutes
the signal
Release- The
release controls the
speed of which the
gate closes once the
signal falls below
the threshold level
Range - sets the signal
allowed to pass through the
gate (even when closed)
Hold Time -
stops the gate
reaching its
release phase
too soon
Attack- Control the
time the gate takes to
fully open (fast attack
= 10-50 micro seconds,
a slow attack = 10-50
milliseconds). If the
gate opens too
quickly, you may get a
clicking noise.
Compression
A compressor essentially makes
sure that all the notes
throughout the song are roughly
the same dB so that we do not
get sudden random outbursts of
sound within a song
Threshold- how loud the
signal has to be before
compression takes place
Ratio- How much
compression is applied.
E.G if the ratio is set to 6:1,
the input signal has to
cross the threshold by
6dB, for the output level
to be decreased by 1dB
Attack- how
quickly the
compressor
starts to work
Release-How soon
after the signal
dips below the
threshold the
compressor stops
Knee- how the
compressor reacts
to signals once the
threshold is passed.
Make-up gain-
allows you to
boost the
compressed signal
to make it louder.
EQ
EQ's main purpose is to
manipulate tone,
boosting/cutting
frequencies to make
something sound better.
Instruments have differing
EQ frequencies (Bass has
lower frequencies, electric
guitar has higher
frequencies_
We hear between
20Hz up to 20kHz
Filters- A high pass filter, low
pass filter or shelf filter can
be modified by using a
bandwidth or Q Controls to
allow the filter width to be
changed. A high pass filter
will be used to remove high
end frequencies, a low pass
filter will be used to remove
low end frequencies.
Sweepable controls allow the
filter centre frequency to be
changed.
Frequencies can
be completely
cut if thinned
and then muted,
possibly
removing any
unwanted noises
such as a ringing
noise from a
drum kit.
Reverb
Reverb is
essentially the
sound created when
a sound is reflected
from a wall (Acting
like an echo)
These reverbs
can be made
naturally by
playing in
various
shaped/sizes of
rooms to create
a natural reverb,
or made in a
digital
reverberator
that will create
an artificial
reverb effect.
The time before
a reverb is called
a pre-delay, then
the echo will
take place and
will gradually
decay (die out)
over time
A reverb effect can be
described as wet or dry.
If the reverb isn't
particularly prominent,
then it will be described
as dry. If a reverb stands
out, then it will be
described as wet.
Microphone positions
4 inches from
the grille cloth
in front of the
speaker
cone-Natural
and well
balanced
1 inch from
the grille
cloth at the
centre of the
cone - Bassy
Off centre
from the
speaker cone -
Dull or mellow
3 feet from the
centre of the
cone - thin,
reduced bass
When recording an acoustic
guitar, it is recommended to
have a microphone 1/3rd up the
neck and over the bridge when
stereo recording, or 13th fret
when mono recording.
When
recording a
piano, it is
best to place
one
microphone
over the bass
strings, and
one over the
treble.