User Manual

Table Of Contents
239
Sampling and creating loops
Furthermore, each time you click Apply, the process starts
out from the wave data as it was when you opened the
Crossfade Looper (since you want to be able to try out
various types of crossfading without re-processing the
wave each time). This affects the undo function: there is
only one step of undo and no redo in the Crossfade
Looper.
Moving the loop points “manually”
Let’s assume you have set up a basic loop that you are
happy with, except for glitches or “bumps” at the turning
point. You can then use the Crossfade Looper to move
the points manually, in small steps, to eliminate the glitch.
This is actually technically no different from moving the
loop points in the wave display, but the features of this di-
alog makes it much easier to find good loop points, since
the display gives you visual feedback as you go along. We
also recommend that you have playback going on in “Loop
as marked” mode since you will then also hear what you
are doing!
The two ways of moving loop points
There are two ways of moving the loop points: dragging in
the actual waveform (position the mouse pointer in the
display and drag sideways) and using the “nudge” but-
tons.
Dragging in the waveform allows you to perform larger moves
more quickly.
The nudge buttons are more useful for fine-tuning since they
move the points by one screen pixel. This means that in 1:1
zoom mode, each press on a nudge button moves the loop
point a single sample.
The various moving options
By moving the left part of the display, you are moving the end
point to a later (left) or earlier (right) position.
By moving the right part of the display, you are moving the
start point to a later (left) or earlier (right) position.
If you activate Linking, both the start and end points will move
simultaneously. That is, the loop length will be exactly the
same, but the entire loop will move.
You can switch to the Wave window and adjust the markers
there, if needed.
Using the auto-find feature
If desired, you can have the program search for good
loop points
automatically. This is technically no different
from adjusting the loop points yourself, only that the pro-
gram uses pattern matching algorithms to suggest loop
points for you.
Let’s say that you want to let the program find a better
start point for the loop. You first set up a start and end
loop marker, to get a basic loop, as described above. You
then invoke the automatic searching, and the program
searches the waveform from the current start point,
trying
to find a section that is as similar as possible to the area
just
after the current end point. When it finds a match it
stops.
You decide how similar the section must be to be consid-
ered a match.
Setting up the parameters
The auto-find parameters.
There are two parameters for the auto-find feature, de-
sired correspondence and search accuracy.
Search accuracy is a parameter for determining how many
samples should be included in the analysis. Higher values re-
sult in greater accuracy, but also longer processing times.
You can drag either side of the waveform directly…
…or use the nudge buttons.