adobe flash cs5 on demand part 51 doc

ptg 314 Chapter 12 Sound is a great motivator. For example, a particular piece of music can make you happy, or it can make you sad. In addition, sounds can pull out childhood memories and stir emotions. Sound is a powerful tool, however, different people react differently to sounds, therefore it's important that you think carefully about the sounds you add to your movies. It's equally important to understand how you can control your movies using using ActionScript 3.0 code or ActionScript Behaviors in ActionScript 2.0. Using Audio with ActionScript Load a Sound from the Library with ActionScript 3.0 Create or open a Flash document (ActionScript 3.0). Click the Window menu, click Library to open the Library panel, and then select an audio file from the available Library items. Right-click (Win) or Command- click (Mac) the audio sound, and then click Properties. Click Advanced, if necessary. Enter a distinctive name for the Identifier field or use the default. Select the Export For ActionScript check box. Leave the other fields at their default values, and then click OK. Click Frame 1 in a layer. Click the Window menu, and then click Actions. Type the ActionScript code shown in the illustration: Click the Control menu, point to Test Movie, and then click Test. 10 9 8 7 6 5 4 3 2 1 2 6 4 9 8 3 5 From the Library of Wow! eBook ptg Chapter 12 Working with Sounds 315 Load a Sound from the Library with an ActionScript Behavior Create or open a Flash document (ActionScript 2.0). Click the Window menu, click Library to open the Library panel, and then select an audio file from the available Library items. Click the Library Options button, and then click Properties. Click Advanced, if necessary. Select the Export For ActionScript check box. Enter a distinctive name for the Identifier field or use the default. Leave the other fields at their default values, and then click OK. Click the Window menu, and then click Behaviors to open the Behaviors panel. Select a button object on the Stage or Timeline keyframe. Click the plus (+) sign, located in the upper-left portion of the Behaviors panel, point to Sound, and then click Load Sound From Library. Enter the name of the audio file in the Linkage ID field. Enter a unique name in the instance field. Select the Play This Sound When Loaded check box. Click OK. Select an Event to trigger the sound. If the audio file was added to a Timeline frame, the event field will be disabled. Click the Control menu, point to Test Movie, and then click Test. 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 10 11 12 9 13 2 3 8 14 From the Library of Wow! eBook ptg 316 Chapter 12 You can load an MP3 music audio file using a built-in Flash behavior. The advantage to this process is that the file is loaded when needed, and it never increases the size of the original Flash movie. Flash per- forms a calculation on audio files as they are loading. When it has enough of an audio file, it begins playing, while it continues to down- load the remaining information in the background. For large audio files, this cuts down on long wait times and keeps the visitor from becoming bored. Streaming MP3 files are not part of a pre-existing Flash movie, they're just available from a common location. Loading a Streaming MP3 File Load a Streaming MP3 File with ActionScript 3.0 Create or open a Flash document (ActionScript 3.0), and then select a button object on the Stage. Open the Properties panel. Enter a distinctive name for the object in the Instance field, such as myButton . Click Frame 1 in the actions layer. Click the Window menu, and then click Actions. Enter the script as shown in the illustration: Click the Control menu, point to Test Movie, and then click Test. 7 6 5 4 3 2 1 1 4 6 5 See Also See Project 2, “Loading and Formatting Text” in the Workshops, available at www.perspection.com, for Action- Script 3.0 code to load external text. From the Library of Wow! eBook ptg Chapter 12 Working with Sounds 317 Load a Streaming MP3 File with an ActionScript Behavior Create or open a Flash document (ActionScript 2.0), and then select a button object on the Stage or Timeline keyframe. Click the plus (+) sign, located in the upper-left portion of the Behaviors panel, point to Sound, and then click Load Streaming MP3 File. Enter the URL to the source MP3 file. Enter a unique name in the identifier field. Click OK. If you selected a button object, select an Event to trigger the sound. Click the Control menu, point to Test Movie, and then click Test. 7 6 5 4 3 2 1 2 3 1 5 4 Did You Know? You can stop all sounds using an ActionScript Behavior. Create or open a Flash document (ActionScript 2.0) that contains playing audio files, place a button object on the Stage, and then select it. Click the plus (+) sign in the Behaviors panel, point to Sound, and then click Stop All Sounds. Click OK. Select an Event to stop the sound. From the Library of Wow! eBook ptg 318 Chapter 12 When you sync a sound to the Timeline, you're essentially instructing Flash how to play the sound. Syncing sounds is a fundamental operation because choosing the wrong sync operation can drastically change how the sound plays out during the execution of the Flash movie. Flash gives you the ability to choose a separate sync operation for each indi- vidual sound file. When you place the sound on the Timeline, the Properties panel displays the audio properties for the selected sound and lets you define individual properties for every sound in your Flash document. For example, you have a background music sound that's located in several scenes, and you want to make sure it doesn't play on top of itself (Sync: Stop). Or, you have a narration that you want per- fectly synced to an animation on the Timeline (Sync: Stream). Syncing Sounds to the Timeline Sync Sounds to the Timeline Select the keyframe on the Timeline containing the sound you want to sync. Click the Window menu, and then click Properties to open the Property Inspector. Click the Sync list arrow, and then select from the following options: ◆ Event. When you select Event (default) the sound plays when the record head reaches the keyframe containing the sound, and continues to play until the end of the sound. If the record head reaches another keyframe that contains the same sound, it will begin playing on top of the original sound. ◆ Start. Doesn’t allow the sound to play on top of itself. ◆ Stop. Stops a sound if it is already playing, without affecting any other sounds. ◆ Stream. The Stream Sync creates sounds synchronized to the Timeline. This is useful for matching sounds to a particular visual event in the movie. If the video can not keep up with the audio, Flash will automatically drop video frames to keep the audio synchronized. 3 2 1 1 2 3 From the Library of Wow! eBook ptg Chapter 12 Working with Sounds 319 Once a sound is imported into Flash and placed on the Timeline, you can add sound effects and determine the number of loops. When you loop a sound, you're instructing the Flash movie to repeat the sound a given number or times, or to loop the sound forever. Some sounds loop better than others. For example, you create some background music, and you want it to continue to play for as long as the visitor is on that particular page, but you don't want the sound to have a definable beginning or end. In addition to loops, you can also add effects to a sound, including fades in and out, and fade to the left or right channel. The effects applied will only modify the selected audio file. Each copy of an audio file dragged into a Flash movie is controlled independently. Adding Effects and Looping Sounds Add Effects and Loop Sounds Select the keyframe on the Timeline containing the sound you want to change. Click the Window menu, and then click Properties to open the Property Inspector. To add ef fec ts t o th e so un d, c li ck the Effect list arrow, and then select an option: ◆ Left Channel/Right Channel. Plays sound in the left or right channel. ◆ Fade Left To Right/Fade Right To Left. Changes sounds from one channel to the other. ◆ Fade In. Increases volume. ◆ Fade Out. Decreases volume. ◆ Custom. Creates custom in and out sound points using the Edit Envelope. To loop a sou nd, c lick the l ist arrow, and then select an option: ◆ Loop. Click Loop to force the sound into an infinite loop. ◆ Repeat. Click Repeat, and then enter the number of times you want the sound to loop (up to 65,535). 4 3 2 1 1 2 3 4 From the Library of Wow! eBook . part of a pre-existing Flash movie, they're just available from a common location. Loading a Streaming MP3 File Load a Streaming MP3 File with ActionScript 3.0 Create or open a Flash document. stop all sounds using an ActionScript Behavior. Create or open a Flash document (ActionScript 2.0) that contains playing audio files, place a button object on the Stage, and then select. Behavior Create or open a Flash document (ActionScript 2.0), and then select a button object on the Stage or Timeline keyframe. Click the plus (+) sign, located in the upper-left portion of the Behaviors