... exercise, up to step 3 THE ESSENTIAL GUIDE TO FLASH CS4 300 The Stream option of the Sync drop-down box tells Flash CS4 to begin playing the sound before it is completely loaded into memory. The downside ... THE ESSENTIAL GUIDE TO FLASH CS4 302We have now prepared the movie, and it’s time to move on to the ActionScript side of adding the sound. 14. With the first frame of the sound layer on the ... asks the Flash file if the sound is playing. If the answer is yes, when the button is clicked, the Flash file decreases the volume—denoted in the code rkhqia9,. We then link the change of the...