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adobe flash cs5 on demand part 50

Làm việc với âm thanh Kết hợp âm thanh thực sự có thể mang lại sự sống cho một bộ phim Flash, tuy nhiên, hiệu quả là rất tinh tế. Ví dụ, hầu hết mọi người sẽ không thể để cho bạn biết nhạc nền chơi phía sau bộ phim yêu thích của họ, nhưng cố gắng để lại những âm thanh ra ngoài và họ ngay lập tức sẽ nhận thấy. | Working with Sounds 12 Introduction Incorporating audio can really bring life to a Flash movie however the effect is very subtle. For example most people would not be able to tell you the background music playing behind their favorite movie but try leaving the sound out and they ll immediately notice. This makes audio a powerful influence on the viewers of your Flash movies. Adobe understands the power of audio and gives you the ability to import audio in a variety of formats including ASND MP3 WAV AIF and AU. If you want more control over your audio you can edit sounds in Adobe Soundbooth directly from Flash. You can use on-clip controls to make fast edits and intuitive taskbased tools to clean up recordings polish voice-overs customize music modify sound effects apply high-quality filters and much more. There are two types of sounds event sounds and stream sounds. An event sound needs to download completely before it starts to play while a stream sound starts to play as soon as enough data downloads for the first few frames. Event sounds continue to play until they are done or you explicitly stop them. Steam sounds are synchronized to the Timeline for playing on a Web site. Flash audio can be controlled using Flash s version of JavaScript called ActionScript and it even gives you the ability to load streaming MP3 files. Add to that the ability to choose between mono and stereo and you can further reduce the size of your audio files mono audio files are half the size of stereo . The one drawback to using audio is that it produces a much larger file even compressed audio files are relatively large but even this can be reduced to a minimum by using shared audio libraries. Since audio files create large Flash movies use sounds when they are necessary to the design of the Flash movie and remember that sometimes silence is golden. What You ll Do Import Audio Use Audio on the Timeline Load a Sound from a Shared Library Use Audio with ActionScript Load a Streaming MP3 .