Exercise 21: Editing Sounds by Working with the Edit Envelope
Flash is not a Sound Editor, but it does have a few features to help you
until you can afford to buy your own Sound Editor. You do have control over when
the sound begins and ends (time in, and time out),
and you do have control over the volume (fade in and fade out).
Create a new Flash file and name it sound-envelope.fla.
Select a keyframe on the Timeline and add a sound file, (you
may wish to download the file at the bottom of this exercise).
On the Properties Inspector panel, click the Edit button.
Click
the Effect popup, and then select from the follow options to experiment
with. Try the Fade In and Fade out with the suggested file at the bottom of the
page:
None
Left Channel
Right Channel
Fade Left To Right
Fade Right To Left
Fade In
Fade Out
Custom
Drag
the Time In marker to the right to change where the audio file
begins. Experiment until the beginning of the sound file really sounds nice.
Drag the Time Out marker to the left to change where the audio
file ends (the Time Out marker appears at the end of the audio file). Experiment
until the end of the sound file sounds nice.
Click the Envelope lines to adjust the volume on the right or left
channels. Clicking on the Envelope line will cause another square marker
to appear that you can use to raise or lower the volume of any portion of the
line.
Use the Zoom buttons to increase or decrease the size
audio file in the edit window.
Click the Play or Stop buttons to test the changes to the
audio file.
Click the Time Marker buttons to change the marker code from frames
to seconds.
If you approve of the change, click OK to save the changes
and to use for the last exercise on publishing documents containing Audio.
Were you able to improve the file significantly? And, remember you can do
this anytime with any sound file you add to the Timeline or Button in Flash MX
2004.
You may download any of these WAV files to use in the exercise if you wish.
Click
the Effect popup, and then select from the follow options to experiment
with. Try the Fade In and Fade out with the suggested file at the bottom of the
page: 
