Chapter 11 Adding Sound and Video

Chapter 11 Lessons 1.Work with sound 2.Specify synchronization options 3.Modify sounds 4.Use ActionScript with sound 5.Work with video

Introduction – Sound and video are important tools you can use to express a message, engage users, and make your site or application appealing to visitors – Sound and video can add significantly to the size of movies that you publish Add Sound and Video

Introduction – You should only apply sound and video where it will have the most impact – Flash provides a number of compression options that can help you achieve a balance between quality and file size Add Sound and Video

You can add sound to an object or the Timeline in Flash by importing sound files to the Library panel. Flash also provides you with dozens of sound effects found in the Common Libraries panel on the Window menu. You can use ActionScript to add sound during runtime. Work with Sound

When you want a sound to play in the background, rather than tie it to a specific object on the Stage, you can add an instance of the sound to a frame on the Timeline. It is recommended that you use the Properties panel to add instances. Work with Sound

The approximate duration of the sound is indicated by the number of frames the lines occupy. If the sound is longer in duration than the movie in seconds, the sound may continue playing after the playhead has reached the last frame. Work with Sound

A sound on the Timeline This layer contains the soundSound file on Timeline Sounds are represented on the Timeline by either a straight or waveform line. Work with Sound

You can play multiple sounds at once by placing the sounds on different layers. Sounds you add in Flash are considered event sounds. The sound starts in the keyframe to which you add it, but it can continue playing even after the last frame in the main Timeline is played. Work with Sound

Sounds in Timeline extend to end of movie Work with Sound

You can have event sounds play at a faster or slower rate than indicated by the frames on the Timeline. You can use event sounds as many times as you like in a movie, with no increase in the file size. Work with Sound

Stream sounds are similar to animated graphic symbols because they are closely tied to the main Timeline. Stream files will begin playing right away without the user having to wait for the entire sound file to download. Work with Sound

Synchronization options: Event Start Stop Stream The Sync sound options in the Properties panel Specify Synchronization Options

Stream sounds are tied to the Timeline and the number of frames on the Timeline. When you add a sound and set it to be stream, Flash breaks the sound into individual sound clips and then associates each clip with a specific frame on the Timeline. Specify Synchronization Options

If the sound is longer than the number of frames on the Timeline, the sound still stops at the end of the movie. An important use of stream sounds is for you to be able to synchronize animation and audio. Specify Synchronization Options

A Start sound is similar to an event sound, but it will not play again if an instance of that sound is already playing. You can use the Start option with sounds associated with buttons or with movies that loop back to the beginning, in order to avoid overlapping sounds. Specify Synchronization Options

The Stop option lets you end an event sound at a specific keyframe. You can insert a keyframe in the frame where you want to apply a Stop option, then you specify the name of the sound you want to stop in the Properties panel. Specify Synchronization Options

A Stop option on the Timeline and in the Properties panel The block rectangle indicates the end of the span of frames with the same content The filled-in blue square above the keyframe indicates a stop action Specify Synchronization Options

In most cases, you will want to edit and enhance sounds in a sound-editing program before you import them into Flash. However, Flash does include some basic editing features you can use on sounds you have already imported. Specify Synchronization Options

Envelope handle for left channel Sound line for left channel Envelope handle for right channel Sound line for right channel Time In control Time Out control Units in frames Display units in frames Display units in seconds Zoom out Zoom in Play sound Stop sound Modify Sounds

You can trim the length of a sound file using the Edit Envelope dialog box. You can preview the edits you make to a sound by clicking the Play button at the bottom-left corner of the Edit Envelope dialog box. Modify Sounds

Flash includes the following effects you can apply to sounds: – Left Channel plays the sound only in the left channel or speaker – Right Channel plays the sound only in the right channel or speaker – Fade Left or Right gradually shifts the sound from the left channel to the right channel over the duration of the sound Modify Sounds

Effects Continued… – Fade Right to Left gradually shifts the sound from the right channel to the left channel over the duration of the sound – Fade in increases the volume of the sound as it begins to play – Fade out decreases the volume of the sound as it ends Modify Sounds

You can set these options either in the Properties panel of the frame to which you have added the sound or in the Edit Envelope dialog box for the sound. Custom lets you create your own volume variations over the duration of a sound. Modify Sounds

A custom volume envelope Sound increases in volume here Sound decreases in volume here Modify Sounds

You can use actions to set how and when sounds play in a movie, and to start or stop sounds in response to user interactions. To reference a sound from the Library panel in ActionScript, you must enable the Export for ActionScript option. Modify Sounds

Click check box to allow sound file to be used in ActionScript Class name used for linkage Modify Sounds

A sound object is a way for ActionScript to recognize and control a sound. When you create a sound object it is similar to creating an instance of a sound on the Stage, except it happens entirely in ActionScript. Use ActionScript with Sound

The Sound.play method starts a sound playing. Sound.play includes optional parameters that let you specify a sound offset and also the number of times to repeat the sound. The stopAll method of the SoundMixer class stops all sounds currently playing. Use ActionScript with Sound

A variable (named snd) with a sound data type; the sound data type is identified by using the class name (myMusic) that was specified in the Linkage area of the Sound Properties dialog box Assign an instance of the sound class to the variable Use ActionScript with Sound

Progressive downloading uses a video Component and ActionScript to load an external FLV file into a SWF file, allowing the video to play when the SWF file is played. This keeps the SWF file smaller than when the video is embedded. Work with Video

The process to load an external video: – Start a Flash ActionScript 3.0 document and select the layer and frame where the video will be displayed – Import the video using the Import Video option from the Import command on the File menu – Use the Browse button in the Import Video dialog box to navigate to the folder where the video is located and choose video Work with Video

Process Continued… – Check the Load External video with playback component option, and then click the Next button – The Skinning screen appears. The video’s skin determines the appearance and position of the video controls – The Finish Video Import screen appears, indicating the file and its location as well as information on the video component and its skin Work with Video

The Skinning screen in the Import Video dialog box Preview of the selected skin Click to view Skin options Click to view color palette of available control bar colors Work with Video

Cue points are indicators on the video Timeline that you specify. To create a cue point, you scrub the seek bar to locate the desired position for the cue points, then you use the CUE POINTS area of the Properties panel to add a cue point and give it a name. Work with Video

Seek bar scrubbed to the 13 second point on the video timeline Cue point named lion is created at the 13 second point Work with Video