See FireWire.


A/B editing

A style of editing in which you edit together clips in pairs—A and B—typically with a transition from one to the next. In Premiere, the A/B Editing workspace configures the Monitor window in Program view and the Timeline with separate expanded tracks for Video 1A, Video 1B, and Transitions. This style is useful for assembling a program with simple drag-and-drop convenience. See also single-track editing.


Acronym for Audio Interchange File Format; Macintosh audio file format. Can be used for uncompressed and compressed data. See also WAV.

alpha channel

Extra information stored with an image to define transparent areas used for keying and superimpositions. Also called an alpha mask. Sometimes present ...

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