Now, all we need to do is add sounds to user events, like buttons, for instance.
To add sound to a button, simply edit a button and add a keyframe to the over state, as IΓÇÖve done here with my Do It Now button. Then add a sound event to that frame. If you want a sound to play on a mouse click, add another keyframe to the down state and add a different sound there.
And that sums it up. We now have a beautifully scored Flash motion graphics piece that wraps our user into the experience that weΓÇÖve created. The real art of this process is building small loops that engage the user without becoming annoying throughout the duration of the piece. Creative use of accent sounds allows us to add depth to the main loop so that it remains fresh and engaging.
Stream Sounds
The other method of adding sound to a project is to add a Stream sound. This allows you to precisely sync the sound to the frames in the movie, which brings with it an upside and a downside. The advantages are that you can compose a dynamic sound score that has great depth and never gets old, as weak loops will. You can use the Stream option to precisely align visual events to sound events, making it a seamless experience. The disadvantages are that the files are large and demand a continuous chunk of the bandwidth for the download. This will force you to be much lighter with the visuals youΓÇÖre using in the piece. More drastic is the fact that Stream will force weaker CPUs to drop frames from a movie to keep the sound in sync with the visuals. The result is a movie that plays back with fluid audio but with visuals that may appear to jump and jitter. If weΓÇÖre creative we can effectively employ streaming to create a rich and fluid project, but we must approach it with much greater self-control over what we try to do with the motion graphics.
