Sony PEG-T665C - Manual (Page 173)

Sound Utility/Sound Converter
173
Chapter 9
Setting imported sound data as alarm sounds
You can set your favorite sound as an alarm sound with the Date Book
and the World Alarm Clock applications. Imported sound data are
automatically registered in the alarm sounds list in addition to the
default sounds.
For details on how to change the alarm sound, see “Using the Date
Book menus” in the Operating Instructions and “Setting the clock
alarm” in this manual (page 151).
Date book World Alarm Clock