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Attaching a Sound Manually

Two distinct methods of sound utilization exist in Flash: static and dynamic. Static is the oldest method. It involves assigning a sound to a particular frame and setting its properties at design time. Such sounds can be previewed in the authoring environment and can have a variety of effects applied to them. However, they are fixed upon export.

You can apply four different synchronization options to a static sound:

  • Event—This is used to play a sound at a particular point in time, but independently of other sounds. An Event sound will play in its entirety even if the movie stops. If the same sound is used twice on the same timeline, setting them to Event will allow them to "overlap," allowing two instances of the same audio to play at once.

  • Start—This is almost the same as Event, except that Start does not allow overlapping instances of the same sound. If you Start a sound while it is already playing, the second Start is ignored.

  • Stop—This halts the selected sound.

  • Stream—This is used to synchronize a sound with the frames in your movie and stagger loading. Streamed sounds are timeline-dependent will stop as soon as the timeline ends. On slower computers, Flash skips frames to keep pace with the audio (handy if you want a fixed-length animation).

To add a static sound to any frame of a movie, simply select the frame and drag the sound anywhere on the stage. Alternatively, pull up the Sound panel and select a sound from the drop-down menu.

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