Peak Notes - John Chittum

wrackbaaMobile - Wireless

Dec 10, 2013 (3 years and 10 months ago)

64 views

`
PEAK


Inputting audio


Recording


Start a new project. You can create either a Stereo or Mono project


Set Audio Input and Output, Input Settings, and Output settings as appropriate for the
setup.


When you hit Record, a box pops up. At this point you
can begin monitoring at the
bottom of the screen. Remember proper gain
-
staging. Try and get a strong signal, without
going over Zero.


What happens when a signal goes past 0 on the meter?


A strong signal makes for easier manipulation later.


To begin rec
ording, hit record the record button in the pop up window.


To change recording settings, hit the “recording settings button.”


Importing from a CD


Go to File Import CD Track


To select tracks to import, you must MARK them. You can MARK ALL or MARK
indivi
dually.


Then choose a save area.


BASICS


Select areas, copy, paste, create new document, copy to new document to alter


Zoom tool, Select Tool, Hand Tool, Pencil Tool


Dynamics
-

Fade In, Fade Out, Change Gain, Normalize, Gain Envelope, Mix


Using
Plugins
-

compression, EQ/filters


Fun effects
-

Reverse, Reverse Boomerang, Harmonic Rotate, Change Pitch, Modulate,
Phase Vocode, Panner


DYNAMICS


Fade In and Out
-

Why are they important?


Change Gain and Normalize
-

What is different about these processes
?


Gain Envelope
-

When is this useful?


Mix
-

How to use Mix to get the best possible combination of sounds


FILTERS/EQ


What is a filter? What types of filters are there? What specifically is EQ?


What are uses of filters, generally? What about very speci
fic uses?


Filters for Voice, filters for other instruments, mastering techniques with filters.


COMPRESSION

What is compression? How does compression work?


What are the two stages in compression? What are the names for two stages if used
individually?


Burning a CD


This can be done in Peak. To do so you must create a playlist


File
-
>new playlist


You can then add tracks to the playlist, set crossfade times, silence times, etc, as desired.


Then you can burn to disc.





DYNAMICS:


Normalization
-

Sets a peak gain, raises(or lowers) all sound by the same percentage that
the LOUDEST sound increasing to get to the peak gain.


Change Gain
-

changes the gain of a selected area by a percentage or fixed amount of dB.


Gain Envelope
-

allows

for changes in gain over time (Envelope normally used on a
SINGLE sound, but in Peak, you can use it to create crescendos and decrescendos over
longer periods of time. You define time by amount of the sample selected.


Mix
-

Mix a sound from the clipboard

into the selected area. The percent is a percent of
the gain of the COPIED sample.


Fade in/out
-

puts the farthest edge at 0, and increases over the time selected to the
original level.


Compression
-

main compressor in Peak is Sqweez
-
1, a plugin. The fol
lowing are the
main components of compression

1
-

Threshold
-

the point at which compressing begins

2
-

Ratio
-

the amount of compression, expressed in ratio form. So, 2L1 would
meant that for every original 2dB, it would only increase 1dB.

3
-

Gain Change
-

The largest

amount of compression allowed, in dB

4
-

Attack
-

the length of time to being compression

5
-

Release
-

how long the compressor stays active after a sound crosses the
threshold

6
-

Knee
-

the amount of “slope” between compressed and uncompressed sounds,
at the
threshold. A hard knee, or high amount of dB, creates a more drastic cut
at the threshold, while a soft knee, or low dB, creates a more smooth
transition.

7
-

Make
-
up gain
-

amount of gain added in the final step. This can be used if in a
heavily compressed mix
, to create a small dynamic range that is loud.


The main goal of compression is to limit the dynamic range of a sample.



FILTER


A filter is used to BOOST or CUT frequencies. The most common filters are High Pass,
Low Pass, High Shelf, Low Shelf,

and Ba
ndpass which breaks into 2 main varieties,
Parametric

and Notch. Another parameter to check for is if it is a RESONATING filter.





High Pass
-

Allows higher frequency to pass. Often has a frequency which is where the
roll
-
off begins, and then a slope valu
e, or how quickly the frequencies are rolled off,
usually shown in decibels per octave.


Low Pass
-

Allows low frequencies to pass. Often has a frequency which is where the roll
-
off begins, and then a slope value, or how quickly the frequencies are rolled o
ff, usually
shown in decibels per octave.


High Shelf
-

Instead of a roll off heading to

infinity starting at a point, a shelf creates a
steep shelf down to a designated level of cut. A high shelf does this with frequencies
ABOVE the cut
-
off point.


Low S
helf
-

Instead of a roll off heading to

infinity starting at a point, a shelf creates a
steep shelf down to a designated level of cut. A high shelf does this with frequencies
BELOW the cut
-
off point.


Bandpass style filters:


Parametric
-

Ability to set var
ious parameters
-



Parameter 1
-

Frequency


The center frequency effected


Parameter 2
-

Q


the amount of Frequencies effected


Parameter 3
-

Gain
-

amount of Boost or Gain (almost always resonating filters)


Notch
-

extremely narrow band, no Q control. Used
almost exclusively to CUT
frequencies. Example is a hardware 32 band EQ.




FUN STUFF


Reverb
-

two kinds available
-

Impulse verb, a DSP function, and FreeVerb, a plugin.
Models the sound in a room or area.


Convolve
-

takes a sample from the CLIPBOARD and
overlays its spectral content with
the selected areas content. This accentuates frequencies that they have that are similar,
and lessens frequencies which are dissimilar.


Harmonic Rotate
-

takes the sound, and rotates the spectral content along a 2 dimensi
onal
axis
-

makes some fun sounds.


Modulate
-

This Modulate command functions as a “ring modulator” which
multiplies two audio signals together (e.g., the material copied to the clipboard and
the currently selected audio). The resulting audio includes the
sum and difference
tones of the frequency components of the modulated audio and the modulating
audio. These are generally very complex timbres that often have a “metallic” (i.e.,
inharmonic) character to them.

Panner
-

The Panner allows you to adjust the pa
nning, or left
-
to
-

right movement, of
a stereo document by drawing an envelope in the Panner dialog. Left is at the top
of the graph, and right is at the bottom.

Phase Vocoder
-

The Phase Vocoder is a type of audio spectrum analysis/resynthesis
tool that al
lows you to modify the duration and/or pitch of an audio selection.


Rappify
-

The Rappify command applies extreme dynamic filtering to a selection.
As one Peak user described it, “Rappify can turn your hi
-
fi into lo
-
fi!” If the target
material has a pronou
nced beat, this has the effect of reducing the material to its
most essential rhythmic components.

Reverse Boomerang
-

The Reverse Boomerang command mixes a reversed copy of
the selected audio with the original.

Reverse
-

The Reverse command reverses the cur
rent selection. In a reversed
selection, the last sample becomes the first sample, the second
-
to
-
last sample
becomes the second sample, and so forth.