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Points to remember

Once again, a recapitulation of the salient points:

  • Sound quality can be determined by the sampling rate, the bit depth of the file (8-bit or 16-bit are the most prevalent), whether the file is stereophonic or monophonic, and the file'scompression rate.

  • Sounds in the sound channel are retriggered when a gap is encountered.

  • Sound files can be either internal (within a Director Cast) or linked to an external source. External files are streamed, or read in from disk while they're playing back. An internal file is loaded into RAM as a whole.

  • Use sound().queue() or sound().setPlaylist to place sounds in a channel's playlist. Looping and start and end times can be set when the sound is placed in the playlist.

  • Use sound().play() to begin playing sounds in a channel's playlist. As a sound begins playing, the sound is removed from the channel's playlist.

  • The pause, stop, playNext, and breakLoop commands allow you to control how sounds in a playlist are played.

  • You can use the sound().volume command to set the volume of a sound channel, and the soundLevel system property to set the volume for the system as a whole. The sound().fadeIn(), sound().fadeOut(), and sound().fadeTo() commands and the sound().pan property give you greater control over sound volume.

  • Both the Score (using the tempo channel) and Lingo let you interpret the cue points encoded into sounds and digital videos. You can use these points to write synchronization scripts for audio and other media during playback.

  • Director 8 supplies sound editors: Peak LE (for the Macintosh) and Sound Forge (for Windows). Both are capable of placing cue points in audio files.



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