Yamaha AW2816 Owner's Manual page 160

Managing songs
10
Deleting unused audio data from a song
The AW2816 allows you to cancel the results of as
many fifteen most recently performed recording or
editing operations (Undo), and then to re-execute the
cancelled operations (Redo). This is possible because
audio data for the Undo function is preserved in the
data area even after recording or editing operations
are executed.
However, the audio data preserved for Undo can be
deleted if you wish. (This action is called "Optimize.")
For example if you are finished recording and editing,
and will no longer need to use Undo/Redo, you can
execute the Optimize operation for that song to
increase the available space on the hard disk.
• The Undo data that is deleted will be permanently
lost. Use great care when executing this operation.
• When you execute the Song Optimize operation, the
current song will be saved automatically.
1
Press the [SONG] key
The SONG screen/Song Edit page will appear.
The upper part of the display will list the songs
that are saved on the internal hard disk. The song
for which an "E" symbol is displayed in the left of
the list is selected for the Optimize operation.
2
Move the cursor to the list in the upper
part of the display.
3
Use the [DATA/JOG] dial to select the song
for which you want to execute the Opti-
mize operation, and press the [ENTER] key
to assign an "E" symbol in the left side of
the list.
154
(Optimize)
[F3] key.
Operation section
Each time you press the [ENTER] key, the "E"
symbol will appear or disappear.
The Optimize operation can be executed on any song
except for protect songs. However, only one song can
be optimized at a time. If you attempt to execute
Optimize when more than one song is marked by the
"E" symbol, an error message will be displayed.
4
Move the cursor to the OPTIMIZE button
and press the [ENTER] key.
A popup window will ask you to confirm the
Optimize operation.
5
To execute the Optimize operation, move
the cursor to the OK button and press the
[ENTER] key.
The current song will be saved automatically,
and then Optimize will be executed. To cancel
without executing, move the cursor to the CAN-
CEL button and press the [ENTER] key.
Executing Optimize will simply delete the unneeded
audio data; it has no effect on hard disk fragmenta-
tion. (Fragmentation refers to a state in which contin-
uous audio data becomes distributed across separated
locations on the hard disk.) To clean up fragmenta-
tion, execute the Defrag operation ( P.166).