Apply digital effect to your music
Effects
Selected Region
All of the
effects described below apply only to the selected region. To
mark the selected region you can either click and hold down
on the wave window and drag the mouse or press and hold down
the shift key while moving in the file. To select the entire
file press Ctrl+A. If you do not have any region selected when
accessing an effect, the entire waveform will be selected as
default.
Presets
Some effects come with
a series of options known as "Presets". The idea behind presets
is to save you having to fiddle around with the numbers, which
is great if the numbers don't mean a lot to you. Instead, you
can just browse the preset list and select the option which
best describes the effect you are trying to achieve.
Amplify
To 'amplify' is to increase the loudness
or volume of the selected region. To make a part of the recording
softer or louder, select it and then use the menu Effects ->
Amplify. The volume is entered in percent (100 being no change,
50 being -6dB softer or 200 being +6dB louder).
Normalize
To 'normalize' is to adjust the volume so that the loudest
peak is equal to (or a percentage of) the maximum signal that
can be used in digital audio. Usually you normalize files to
100% as the last stage in production to make it the loudest
possible without distortion.
High-Pass Filter
A high-pass filter (sometimes called a low cut filter) removes
all low frequencies below a specified Hz. This is useful if
you want to make your recording sound 'clearer' or less 'muddy'.
It is very usual to use a high-pass filter of about 300Hz on
all voice recordings to improve intelligibility.
Equalizer
An equalizer changes the frequency response of a signal
so it has different tonal qualities. See General Audio Concepts
(Samples, Channels etc..) for some explanation about what this
means.
After you select Effects menu -> Equalizer you
will see a graph of amplitude against frequencies. Left click
on any slider bar to create a new band point.
To assist
you with shaping the Equalizer graph in the way you want, there
is a preset list that displays the most common sorts of filters
used in the Equalizer graph. You can choose any preset filter
from the list and then manipulate the filter to achieve the
effect you desire.
If you are using the equalizer simply
to drop lower frequencies, you should always try the High Pass
filter first (Effects menu -> High Pass Filter), because it
is better and faster for very low frequencies.
Echo
You can use this function to create single echoes, as well
as a number of other effects. Delays of 35 milliseconds (ms)
or more will be perceived as discrete echoes, while those falling
within the 35-15 ms range can be used to create a simple chorus
or flanging effect. (These effects will not be as effective
as the actual chorus or flanging effects, as the delay settings
will be fixed and will not change over time).
For more
information about delay effect see: http://www.harmony-central.com/Effects/Articles/Delay
Reverb
Reverb is many small reflections of
the sound that come after a set time. It usually occurs when
someone is speaking in a room, hall etc. More reverb is called
wet, no reverb is called dry.
For more information about
flanging effect see: http://www.harmony-central.com/Effects/Articles/Reverb/
Duration
The delay time, in ms.
Mix Depth
The dry is the volume of the input signal
and the wet is the volume of the delayed signal, in percent.
Varies from 0 to 100. If Mix Depth = 0 result signal isn't contain
delayed signal. If Mix Depth = 100 result signal isn't contain
input signal. Other values of Mix Depth are combination of the
dry and the wet (wet = 100 - dry).
Feed Back Gain
The feedback sets how much delay is feed back to the input.
Varies from 0 to 100.
Reverb Gain
The level
of reverberation signal in db.
Tap Delay
The number of taps before delay is fed back to the input.
Reverb Frequency
The type of trim. Can be
one of the following types: trim from left, right or from both
sides of trim level.
Reverse
This effect
reverses the selection in the same way playing a record or tape
backwards would.
Fade In
Fade Out
Fade Out and Trim
To fade in or out use the
menu Effects -> Fade In or Effects -> Fade Out.
The fade
out and trim option is a combined function which fades out over
the selection then marks the end of the selection as the end
of the file. This is frequently used at the end of music tracks.
Envelope
The 'envelope' is the change in volume
of the select region over time. This can be used to make fine
adjustments to the volume over time or even more crude changes
like fade in or fade out.
Select the region you want
to change the volume over and use the menu Effects -> Envelope.
Click on any point to adjust its volume.
Speed Change
Normal speed changes changes the pitch in proportion to
the speed. If you want to change the speed but keep the pitch
the same use this function.
Pitch Change
This changes the pitch of the recording without changing
the speed (i.e. the converse of the above).
Dynamic
Range Compressor
A Dynamic Range Compressor limits
the volume levels of a sound recording so that it stays within
a certain loudness range.
An example of where it is used
is in TV broadcasting, where it ensures that the volume levels
of ads are perceived as being louder than the television program
itself (without any change in the actual broadcast volume).
It also has a use for recording audio from one medium to
another, where the two mediums are not capable of handling the
same range of volume levels (e.g. A CD can handle a much greater
range than a cassette tape)
The "Threshold" setting works
by detecting when the sound recording volume exceeds a defined
decibel level. It then gradually attenuates the sound to bring
it down below the dB level, and does it in such a way that the
listener will not be aware the attenuation is occurring.
Flanger
Flanging is created by mixing a signal
with a slightly delayed copy of itself, where the length of
the delay is constantly changing. It is actually one specific
type of phasing (Phaser).
For more information about
flanging effect see: http://www.harmony-central.com/Effects/Articles/Flanging
Delay Rate
Rate of delay. Varies from 0 (there
isn't delay) to 100 (delay is 20 ms).
Mix Depth
The dry is the volume of the input signal and the wet is
the volume of the delayed signal, in percent. Varies from 0
to 100. If Mix Depth = 0 result signal isn't contain delayed
signal. If Mix Depth = 100 result signal isn't contain input
signal. Other values of Mix Depth are combination of the dry
and the wet (wet = 100 - dry).
Feed Back Gain Feed Back
Gain sets how much delay is feed back to the input. Varies from
0 to 100.
Sweep Depth The sweep depth determines how
wide the sweep is in terms of delay time, in percent. Varies
from 0 (no effect) to 100 (maximal effect).
Sweep Rate
This parameter refers to the frequency of flanging. Varies from
0 to 100, in percent.
Sweep Phase
Phase
of delay, in radian.
Reverb
It is the sound
you hear in a room with hard surfaces where sound bounces around
the room for a while after the initial sound stops.
For
more information about flanging effect see: http://www.harmony-central.com/Effects/Articles/Reverb
Duration
The delay time, in ms.
Mix Depth
The dry is the volume of the input signal
and the wet is the volume of the delayed signal, in percent.
Varies from 0 to 100. If Mix Depth = 0 result signal isn't contain
delayed signal. If Mix Depth = 100 result signal isn't contain
input signal. Other values of Mix Depth are combination of the
dry and the wet (wet = 100 - dry).
Feed Back Gain
The feedback sets how much delay is feed back to the input.
Varies from 0 to 100.
Reverb Gain
The level
of reverberation signal in db.
Tap Delay
The number of taps before delay is fed back to the input.
Reverb Frequency
The type of trim. Can be
one of the following types: trim from left, right or from both
sides of trim level.
Chorus
The Chorus
differs from the Flanger in only a couple of ways. One difference
is the amount of delay that is used. The delay times in a Chorus
are larger than in a Flanger, usually somewhere between 20 ms.
and 30 ms. (the Flanger's delay usually ranges from 1 ms. to
10 ms.) This longer delay doesn't produce the characteristic
sweeping sound of the Flanger. The Chorus also differs from
the Flanger in that there is generally no feedback used.
For more information about chorus effect see: http://www.harmony-central.com/Effects/Articles/Chorus
Delay Rate
Rate of delay. Varies from
0 (there isn't delay) to 100 (delay is 20 ms).
Mix
Depth
The dry is the volume of the input signal and
the wet is the volume of the delayed signal, in percent. Varies
from 0 to 100. If Mix Depth = 0 result signal isn't contain
delayed signal. If Mix Depth = 100 result signal isn't contain
input signal. Other values of Mix Depth are combination of the
dry and the wet (wet = 100 - dry).
Feed Back Gain
Feed Back Gain sets how much delay is feed back to the input.
Varies from 0 to 100.
Sweep Depth
The sweep
depth determines how wide the sweep is in terms of delay time,
in percent. Varies from 0 (no effect) to 100 (maximal effect).
Sweep Rate
This parameter refers to the
frequency of flanging. Varies from 0 to 100, in percent.
Sweep Phase
Phase of delay, in radian.
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