Steinberg WaveLab 7 Operation Manual

5.1 Offline processing 97
Adjusting Envelopes
5.1.8 Loop Tweaker
This dialog allows you to refine a region of audio to loop seamlessly.
The Loop Tweaker can just be used to "tweak" an existing loop selection so that it loops
perfectly or you can also use it to create a loop from material which does not naturally repeat.
To use the Loop Tweaker you must first have a loop defined using a pair of loop markers
.
The Loop Tweaker consists of the following tabs:
Loop points adjustment
This is a...

98 Audio File editing
Adjusting Envelopes
Zero crossing
5.1.9 Effect morphing
This dialog within the Audio File Workspace allows you to gradually mix two audio ranges
that have different effects/processing applied to them.
Effect morphing allows you to smoothly "morph" or blend from one effect to another, or from
an unprocessed audio segment to a processed audio segment. Effect Morphing always
involves two audio ranges. Normally, these are two versions of the same audio range, of
which one is...

5.1 Offline processing 99
ˆ 2. If, for instance, uou have a sine of 0 dB / 1 second followed by a sine of -6 dB / 3
seconds. This means there are 3 times more -6 dB material than 0 dB material. You
will see a peak of about 33% at 0 dB, and another peak of 100% at -6 dB.
This analysis is useful for learning about how the loudness of your music is distributed.
You can access this dialog in the Wave File Workspace via Analysis>Loudness distri-
bution... .
For an explanation of each parameter and interface...

100 Audio File editing
5.1.12 Pan Normalizer
This dialog allows you to ensure that both channels of a stereo file have the same level or
loudness. Since loudnesss is more important than peak volume in the perception of sound,
this is a powerful tool to get the best possible stereo balance.
This process uses two passes to first analyze the audio and then render any level changes
required.
You must have a stereo selection in a stereo file to apply this process.
You can access this dialog from the Audio File...

5.1 Offline processing 101
single instruments. It can be useful for 're-tuning' the pitch of an imperfect recorded vocal
performance, for example.
The dialog allows you to choose the reference frequency (normally 440 Hz) and the time
taken for the pitch correction to reach the nearest semitone. An explanation of when and
how to adjust the Slur time is given using the 'What's this?' tooltips.
You can also choose to preserve the
formants of the original material. Choosing this option
can...

102 Audio File editing
submenu select the number under which you want to save (#1 - #5). To quickly load the
saved settings again, select the corresponding number from the "Restore" submenu.
ˆ Define shortcut for the current setting - when available, this allows you to assign a
shortcut to the current preset using either a key shortcut, keyword or via a MIDI trigger.
For example, if you have a preset to normalize audio at -0.1 dB and you assign it a
key shortcut then everytime you execute the...

5.1 Offline processing 103
ˆ Windows 7 -C:nUsers n[User Name] nAppData nRoaming nSteinberg nWaveLab
7 nPresets
ˆ Windows XP -C:nDocuments and Settings n[User Name] nApplication
Data nSteinberg nWaveLab 7 nPresets
ˆ Mac OS X -root/[User Name]/Library/Prefences/WaveLab 7/Presets/
You can also find this folder by using the "Open active settings folder" link in the preferences
pane. This opens your file browser to wherever the main Presets folder is currently located.
Inside this Presets folder each...

104 Audio File editing
ˆ Mix down a complete Audio Montage to an Audio File.
ˆ "Apply" all settings in the Master Section to a file in a Wave window.
When you render a file you can choose the format of the new Audio File and whether you
wish to create a new file or render the file in place. When the file is rendering you will
see a progress bar in the status bar.In WaveLab you can also view this Progress bar in the
Background tasks window (a shared tool window that can be set to float...

5.2 Analysis 105
5.2 Analysis
WaveLab provides you with a comprehensive set of tools for analyzing your audio and di-
agnosing any errors. You can view your Audio File in many different ways using the suite of
audio meters, via its frequency spectrum, or even in three dimensions. There are also several
tools to interrogate any sample of your audio and find any errors or anomalies.In WaveLab
you can even compare two Audio Files with the
Audio file compare tool and view audio in a
Spectrum or Loudness view...

106 Audio File editing
ˆ Extras- this tab is for informing you about DC offsets and the significant bit resolution
of the file. This can be useful, for example, if you wanted to check whether a 16 bit
file really uses 16 bits (or if it was actually recorded with only 8 bit resolution and then
upscaled to 16 bits).
ˆ Errors- this tab is to help you find glitches and sections where the audio has clipped
(gone beyond 0 dB).For more control over the analysis, use
Error detection and cor-
rection
.Checking and...