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Chapter 8: Audio and subtitles
Providing audio or subtitles in multiple languages can expand the audience of your project. But audio and subtitle
tracks need not be limited to language translations. For example, they can provide a director's comments, teacher's
notes, or hints for students.
Audio clips
About multiple audio tracks
A DVD or Blu-ray project can include as many as eight audio tracks. Traditionally, audio track 1 is used for the
soundtrack of the video. The remaining seven tracks are used for supplemental audio, such as dubbed versions of the
soundtrack, director's comments, teacher's notes, or coach's tips.
While a DVD or Blu-ray Disc can include eight audio tracks, a DVD or Blu-ray Disc player can play only one audio
track at a time. Because two audio tracks cannot play simultaneously, all audio tracks need to be complete within
themselves. For example, if you want the same background music and sound effects to be heard in each dubbed
language track, you must mix them with the voice track before you import them into a project. You can use an audio-
editing application, such as Adobe Soundbooth CS3, to combine audio sound effects, music, and dialog into a single
audio clip.
Note: Multiple audio tracks are not supported by Flash.
Timeline with multiple audio tracks
To have audio play while a menu displays, see "About motion menus" on page 86.
See also
"Set buttons to select audio or subtitle tracks" on page 150
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