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About Zero Crossings
If you are familiar with audio editing from other digital systems you will know that
splicing two audio files together might create a “click” just at the split point. This is
because the two signals happen to have a different amplitude (level) at this point
which creates a transient (a sudden and dramatic change in signal level).
One way to avoid this is to always make all edits at “zero crossings”.
An analog waveform is a voltage rising and falling around a center axis. This center
axis is considered “zero” voltage. As indicated in the picture, a zero crossing is
when the signal passes through this center axis.
To automatically make all edits happen at the closest zero crossing, activate Snap
To Zero on the Audio menu. When Snap To Zero is activated, the following opera-
tions always occur at the closest zero crossing:
• Changing Start and End Insets.
• Splitting Event in the Audio editor.
• Splitting Parts in the Arrangement (the Events in the Parts are split at zero
crossings).
• Using Snip Loop (in the Audio editor).
● It may happen that it will take a while to find the closest zero crossing. If this
is the case the program will ask you if you want to continue the search or can-
cel it.
Zero crossings
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