Antares Infinity user manual

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EDITING THE SOUNDFILE
In addition to automated looping tools, Infinity has a sophisticated wave-
form editing environment. The following section describes how to select
data and use the editing tools to change it.
SPECIFYING WHERE TO CHANGE SOUND DATA
The first step in editing the soundfile data is to identify which data are to
be changed. In Infinity, as in many other Macintosh applications, data is
selected by using the insertion point and the I-beam cursor. Data can be
selected in both the Overview and the Mainview.
USING SELECTION MODE IN THE MAINVIEW
When a soundfile opens, the Mainview is in Selection Mode. Selection
Mode is used to change the current selection or insertion point. When the
cursor is moved into the active Mainview display, it becomes the I-beam
cursor. The Selection icon on the Palette video-reverses to indicate that the
Mainview is in Selection Mode. The I-beam cursor can be used to place the
insertion point or make a selection anywhere in the soundfile.
PLACING THE INSERTION POINT
The insertion point is the blinking vertical line which appears in both the
Overview and the Mainview. It can be moved only in Selection Mode by
using the I-beam cursor. It marks the place where data will be inserted or a
boundary of a region to be selected.
TO: DO THIS:
Place the insertion point Click once in the Mainview at the
desired location. In a stereo soundfile,
the insertion point appears in both
tracks.
Place it in only one track Hold down the Option key and click at
the desired location.
Extend it to the other track Hold down the Control key and click in
the other track. Click again to remove
it. 
						

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SELECTING DATA
There is a variety of ways to select data in Infinity. Selected data become
video reversed to show that they are selected. The Mainview will automati-
cally scroll during the selection if the cursor is dragged beyond the data
displayed in the Mainview.
TO: DO THIS:
Select a region in one track Drag through the region, or Optionclick
at the start , then Shift-click at the end.
Select a region in both tracks Drag across the two tracks, or click at
the start of the region, then Shift-click
in the other track at the end.
Lengthen the selection Point at the new start or end and Shift-
click. You can then drag to a different
endpoint.
Shorten the selection Point near the current end, Shift-click,
then drag to a different endpoint.
Extend selection to the other track Hold down the Control key and click in
the other track. Click again to remove it.
Select a whole track Double-click in the track; or place the
insertion point in the track and choose
Select All (
x-A) from the Edit menu.
Select all the data in the soundfile Double-click in one track and drag to
the other; or Shift double-click in the
other track; or place the insertion point
in both tracks and choose Select All
from the Edit menu.
Select data inside the loop points Choose Select Loop from the Edit menu.
Deselect a region Place an insertion point anywhere. 
						

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USING SELECTION MODE IN THE OVERVIEW
Data can also be selected in the Overview by placing the Overview in
Selection Mode. The insertion point and data selection behaviors are
exactly the same as in the Mainview.
To put the Overview in Selection mode:
1. Click on the Selection icon in the Palette.
The icon begins to blink and the message “Choose a Window for
Selection Mode” appears in the Status Display area of the Palette.
2. Move the cursor into the active window and click in the Overview.
The cursor becomes the I-beam cursor. The Selection icon on the Palette
video-reverses. Use the I-beam cursor to select any region in that
Overview.
To put the Overview back into Zoom Mode,
1. Click on the Zoom Mode icon in the Palette.
The icon begins to blink and the message “Choose a Window for Zoom
Mode” appears in the Status Display area of the Palette.
2. Move the cursor into the active window and click in the Overview.
The cursor becomes the cross cursor. The Zoom Mode icon on the
Palette video-reverses to show that the Overview is in Zoom Mode.
USING MOMENTARY SELECTION MODE
Infinity can be put into Selection Mode temporarily by pressing . This is useful for quickly selecting a region in the Overview. The
cursor will become the I-beam cursor and all active displays will remain in
Selection Mode as long as this key combination is pressed. When the key
combination is released, all displays go back to their previous modes. 
						

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USING THE EDITING FUNCTIONS
This section describes the edit functions shown in the Edit menu as they
operate without the use of the Blending feature. See “Using Edit Blending”
on page 31 for the details of how this feature effects the edit functions.
All of the functions described below can be reversed using the Undo
command in the Edit menu, provided that Undo is enabled in the Prefer-
ences… dialog. See “Customizing Your Environment” on page 36 for the
details.
When an edit operation is done on a soundfile, the contents of the Clip-
board is stored as the soundfile’s previous Clipboard. For a Cut or Copy, the
following steps take place:
The application Clipboard is updated.
The soundfile stores the new Clipboard as its new Clipboard.
For a Clear, Clear Unselected, or Paste, the soundfile stores undo
information to undo the edit.
You can go back to any document, any time after it has been edited,
and do an undo.
The soundfile uses the new Clipboard or the undo information, which-
ever is available, to undo the edit.
If the soundfile’s new Clipboard information was used, and if that
information is the same as the application Clipboard, then the applica-
tion Clipboard is replaced with the soundfile’s previous Clipboard.
This has the effect of undoing the Clipboard as well as the soundfile
edit.
You can go back to any document, any time after it has had an undo
and do a redo.
If the undo had the effect of undoing the Clipboard, then redo will
have the effect of restoring it.
CUT
Cut removes precisely the number of samples that are selected. Any data to
the right of the cut is shifted left by exactly that amount. Blending is
performed by combining data just inside the selection with data that was
not cut on the opposite end of the selection. Hence, if you use cut to
remove a noise spike, you may find, depending on the size of the cut and
the amount of blending used, that part of the spike still remains.
If an Undo Cut occurs later, the cut data is replaced in the soundfile and the
previous Clipboard data is returned to the Clipboard.
To cut data, select the data to be removed. Then choose Cut from the
Edit menu. The keyboard command equivalent is 
x-X. 
						

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COPY
The Copy function copies data into the Clipboard without removing it from
the soundfile. Since the Clipboard can hold only one item at a time, any
data previously in the Clipboard is lost.
To copy data, select the region to be copied. Then select Copy from the
Edit menu. The keyboard command equivalent is 
x-C.
PASTE
The Paste function inserts data from the Clipboard into the soundfile.
Infinity will paste data into the soundfile at the insertion point or replace a
selected region with the Clipboard data. Since the original data remains on
the Clipboard, it can be pasted any number of times. The keyboard com-
mand equivalent is 
x-V.
When Pasting into a soundfile that has no samples, the soundfile will
acquire the sample rate and MIDI Note Number of the first data pasted into
it.
Normally, when Pasting or Mixing with an insertion point, the new data is
inserted before the first sample of the group of samples represented by the
pixel under the insertion point. The exception to this rule is when the
insertion point is on the last pixel in the soundfile window. In that case, the
new data is added after the last sample in the soundfile. Blending occurs
between the end of the original sound and the pasted data.
To paste at the insertion point, place the insertion point where the
region of pasted data is to begin. Then select Paste from the Edit
menu. The data to the right of the insertion point is moved over and
the Clipboard data is inserted.
To replace a selected region with the Clipboard, select the region to be
replaced. Then select Paste from the Edit menu. The selected data is
deleted and the Clipboard data is inserted in its place. Data to the right
of the selection is moved to fit the newly pasted region.
Attempting to paste a stereo Clipboard into one track, evokes this dialog. 
						

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CLEAR
The Clear function is the same as Cut except the Clipboard remains un-
changed. The data to the right of the cleared region are moved to fill up the
gap.
To clear data, select the region to be cleared. Then select Clear from the
Edit menu. The keyboard command equivalent is 
x-B or Delete.
CLEAR UNSELECTED
The Clear Unselected function clears all the data around a selected region of
the soundfile. After the unselected data are cleared, the selected region is
moved to the front of the soundfile.
To clear unselected data, select the region to be left unchanged. Then
choose Clear Unselected from the Edit menu. The keyboard command
equivalent is 
x-T.
CLEAR BEYOND LOOP END
This option clears data after the loop.
MIX
The Mix function combines the contents of the Clipboard with the soundfile
data in a 1:1 ratio. Infinity will mix data into the soundfile starting at the
insertion point or mix into a selected region. The keyboard command
equivalent is 
x-M. There must be data in the Clipboard for the Mix function
to be enabled. You can mix into a selection or at an insertion point.
To mix data starting at the insertion point, place the insertion point
where the mixture is to begin. Then select Mix from the Edit menu. The
data in the Clipboard will be mixed with the soundfile in a 1:1 ratio,
starting at the insertion point and going to the end of the Clipboard.
When mixing to an insertion point, the Clipboard selection is placed at
the insertion point. Initial blending (if enabled) occurs before the
insertion point. After the insertion point, all of the Clipboard is mixed,
even if this means extending the length of the soundfile. Attempting to paste a mono Clipboard into two tracks, evokes this dialog. 
						

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To mix data into a selected region, choose Mix from the Edit menu. The
Clipboard is mixed with the selected data from the beginning of the
selection through the duration of the Clipboard or the selected region,
whichever is shorter. When mixing into a selection (with no blend), the
mixed data is limited to the minimum of the soundfile selection or the
Clipboard selection. This keeps changes within the selection.
When there is a blend, the blend is done outside the selection and different
blends are used for beginning and end, whatever can be worked out
between the soundfile and the Clipboard.
In blending during the mix, the soundfile is never tapered. The Clipboard is
tapered up in the beginning and down at the end (depending on the
amount of data available to construct the blend).
When mixing into a soundfile that has no samples, the soundfile will
acquire the sample rate and MIDI Note Number of the first data pasted or
mixed into it.
Normally, when Pasting or Mixing with an insertion point, the new data is
inserted before the first sample of the group of samples represented by the
pixel under the insertion point. The exception to this rule is when the
insertion point is on the last pixel in the soundfile window. In that case, the
new data is added after the last sample in the soundfile.
INVERT
The Invert function changes the sign of the soundfile data. In other words,
it inverts the phase of the waveform by 180 degrees.
To invert the soundfile data, select the region to be inverted. Choose
Invert from the Edit menu. The selected data are then changed.
REVERSE
The Reverse function reverses the order of the sample data in time, end for
end. (e.g. a backwards cymbal roll)
To reverse the soundfile data, select the region to be reversed. Choose
Reverse from the Edit menu. The data are then switched in order, the
last sample coming first.
SILENCE
The Silence function zeroes selected data in the soundfile.
To silence soundfile data, select the region to be silenced. Choose
Silence from the Edit menu. The sample values of the selected data are
then zeroed. 
						

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The gain of the selected data can be changed by using the slider or by
typing in the text box. The range of the control is from -12 dB to +12db.
Clicking on the arrows will increment the setting by 1 dB. Clicking in the
grey area will increment the setting by 3 dB.
A typical application for the Change Gain function is adjusting the level of
a normalized soundfile downwards before mixing it with another
soundfile. After processing, the soundfile can be returned to its original
level by changing the gain an equal amount in the opposite direction.
To change the amplitude of soundfile data, select the data to be scaled.
Choose Change Gain… from the Edit menu. Set the desired gain
change using the controls. Click OK to process the data. Changing Gain
can be undone.
CREATE/DELETE LOOP POINTS
The Loop Points icon adds loop points to a file or deletes them from a file
which has them.
To create loop points in a soundfile, click on the Loop Points icon in the
Palette, or choose Create Loop Points from the Edit menu. The key-
board command equivalent is 
x-P. The loop points appear in the
soundfile and the menu item changes to read Delete Loop Points. NORMALIZE
The Normalize function increases the gain of a selected region until the
largest sample in the region is at 100% amplitude. Normalize insures the
maximum signal to noise ratio from your sample playback instrument.
To normalize soundfile data, select the region to be normalized.
Choose Normalize from the Edit menu. The selected region will be
increased in amplitude until the largest sample in the region is at full
scale.
CHANGE GAIN…
The Change Gain dialog allows the level of the soundfile to be adjusted to
avoid clipping during processing. Selecting Change Gain… from the Edit
menu will cause the following dialog to appear: 
						

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To delete loop points from a soundfile, click on the icon again. The
loop points will disappear and the menu item will change back to read
Create Loop Points. The deleted loop points can be returned to their
original positions by clicking on the icon a third time.
LOOP THE SELECTION
This command place the loop points at the ends of the current selection.
LOCATING LOOP POINTS
The Mainview can be scrolled to the position of either the loop start or
loop end points. The Loop Start icon is labeled 1. The Loop End icon is
labeled 2.
To center the Mainview on the loop start point, click on the Loop Start icon.
The keyboard command equivalent is 
x-Shift -[.
To center the Mainview on the loop end point, click on the Loop End
icon. The keyboard command equivalent is 
x-Shift-].
Hold the Option key while clicking these buttons does a full zoom out of
the mainview display.
SET MIDI NOTE…
Choosing this item from the Edit menu or clicking on the MIDI Note
Number in the soundfile window displays the following dialog.
The MIDI Note Number tells Infinity the pitch of the soundfile. It is used in
Infinity’s looping algorithms and is critical to the operation of the Freeze
Looper. Empty soundfiles will acquire the sample rate and MIDI Note
Number of the first data pasted or mixed into them.
To change the MIDI Note Number, choose Set MIDI Note… from the
Edit menu. Data can be entered by typing in the text box or by using
the scroll bar. Either the MIDI Note Number or the musical pitch (e.g.
C#3) can be entered. Clicking in the grey area increments by one
octave. 
						

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To constrain the selection boundaries to positive going zero crossings in the
soundfile, check Auto-Zero.
SHOW CLIPBOARD…
Choosing Show Clipboard… in the Edit menu calls the following dialog. AUTO-ZERO
When this item is checked in the Edit menu, Infinity constrains the bound-
aries of selected regions to positive going zero crossings in the sample data.
This helps you to avoid creating pops and clicks when you cut and paste.
Infinity will always expand the selection to the positive going zero crossings
closest to the initial selection boundaries. When two tracks are selected,
Track 1 is used as the guide track.
POSITIVE GOING 
ZERO CROSSING