Premiere Pro Glossary

Έκδοση φιλική για τον εκτυπωτή

Λίστα με ορισμούς που αφορούν την εφαρμογή Premiere Pro και την επεξεργασία ψηφιακού βίντεο γενικότερα. 
Περιήγηση στο γλωσσάριο χρησιμοποιώντας αυτό το ευρετήριο

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V

VBR

(Variable BitRate) is a term used in telecommunications and computing that relates to the bitrate used in sound or video encoding. As opposed to constant bitrate (CBR), VBR files vary the amount of output data per time segment. VBR allows a higher bitrate (and therefore more storage space) to be allocated to the more complex segments of media files while less space is allocated to less complex segments. The average of these rates can be calculated to produce an average bitrate for the file.

MP3, WMA and AAC audio files can optionally be encoded in VBR, while Opus and Vorbis are encoded in VBR by default. Variable bit rate encoding is also commonly used on MPEG-2 video, MPEG-4 Part 2 video (Xvid, DivX, etc.), MPEG-4 Part 10/H.264 video, Theora, Dirac and other video compression formats. Additionally, variable rate encoding is inherent in lossless compression schemes such as FLAC and Apple Lossless.

With constant bit rate vs variable bit rate video, CBR is best for live streaming encoding, and VBR is best for on-demand videos.

https://en.wikipedia.org/wiki/Variable_bitrate 

video logging

Is a process in which video footage is watched and labeled according to its content.

voiceover

An audio clip containing spoken narration that plays during the video in a sequence.