Adobe Flash Professional CS6 Adobe Flash Professional CS6 Classroom In A Book | Page 315
P Note: You can
also add sound to the
Over state of a button
symbol, and the sound
will play whenever
the mouse cursor just
hovers over the button.
6 Select the Down keyframe in the sounds layer.
7 In the Properties inspector, choose Start for the Sync option.
A Start sync option triggers the sound whenever the playhead enters that
particular keyframe.
8 Choose Control > Test Movie > in Flash Professional. Test the first button to
hear the monkey, and then close the preview window.
9 Edit the sound_button2 and the sound_button3 to add the Lion.wav and the
Elephant.wav sounds to their Down states.
understanding Sound Sync options
Sound sync refers to the way the sound is triggered and played. There are several
options: Event, Start, Stop, and Stream. Stream ties the sound to the Timeline so you
can easily synchronize animated elements to the sound. Event and Start are used to
trigger a sound (usually a short sound) to a specific event, like a button click. Event
and Start are similar except that the Start sync does not trigger the sound if it is
already playing (so there are no overlapping sounds possible with Start sync). The
Stop option is used to stop a sound, although you’ll use it rarely, if ever. If you want
to stop a sound with a Stream sync, simply insert a blank keyframe.
understanding Flash Video
P Note: Flash can
actually play back
any video encoded in
H.264, so your video
file doesn’t have to
have the .f4v extension.
For example, a video
with a .mov extension
encoded by QuickTime
Pro with H.264 is
compatible with Flash.
306
Lesson 8
Flash makes it very easy to deliver video over the Web. Combining video, interac-
tivity, and animation can create a very rich and immersive multimedia experience
for your viewers.
There are two options to display video in Flash. The first option is to keep the video
separate from your Flash file and use a playback component from Flash to play the
video. The second option is to embed the video in your Flash file.
Both methods require that the video be formatted correctly first. The appro-
priate video format for Flash is Flash Video, which uses the extension .flv or
the extension .f4v. F4V supports the H.264 standard, a state-of-the-art video
codec that delivers high quality with remarkably efficient compression. A codec
Working with sound and Video