More About Editing - Alesis ADAT-HD24 Reference Manual

editing • chapter 6

More about editing

If you're familiar with digital audio editing, you
know that an abrupt change from one region to
another when making an edit can cause a "click" or
"pop". This would happen if the sample number
jumps drastically from the original material to the
pasted material. For this reason, all digital audio
recorders use crossfade regions when performing
an edit or punch-in on existing material.
On the ADAT HD24, a 10 millisecond long
crossfade region is automatically created at both the
beginning and end of an edit. In most cases, this
won't affect the performance of your edits, but in
some rare situations, keep the following illustration
in mind:
-10 ms
0
EDIT
START
As you can see, the crossfade region starts 10 ms.
before the actual EDIT START point. A crossfade
region continues for 10 ms. after the EDIT END
point. Therefore, the pasted region actually affects
20 more milliseconds of a track than the difference
between EDIT START and EDIT END would
indicate.
Tip: This is a reason to use PASTE UNDO if you
don't like a paste.
simpler to simply cut and paste some new data
to the same edit points without undoing the
first paste, if you do so the new crossfade
regions will be a mix of three different "takes":
the original, the first paste, and the final paste.
If the audio starting the first paste is drastically
different from the final one, it's possible that
very short "blips" could be audible around the
edit points.
64
+10 ms
END
EDIT
END
Though it might seem
ADAT HD24 Reference Manual