The ringtone editor lets you select what part of the song you want your ringtone to be from and how long the ringtone will be. Ringtones can be up to 30 seconds long, though the default is 15 seconds.
To set the length of your ringtone, grab either end of the highlighted area and drag the highlight to be longer or shorter. The highlighted area will update to show you how long the clip is.
To choose what part of the song the ringtone is from, grab the middle of the highlighted area middle and move it around the song.
You can also have the song fade in or out for a smoother sound.
To listen to your ringtone as you edit it, click the Preview button.