Audio Post Production Knowledge Base

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Vari-speed
Vari-speeding sound allows an audio engineer to deviate from (or to) a standard speed. It is the process of changing the speed of an audio track to match the speed of another audio track or video source. Vari-speeding is often used to correct speed variations due to rate conversion or

7.1 Multi-channel Audio
7.1 refers to multi-channel audio intended to be monitored through eight channels: seven full frequency range (20Hz to 20KHz) channels and one frequency limited (below 120Hz) channel for the LFE (Low Frequency Effects), or Subwoofer track. 7.1 multi-channel audio has several theoretical channel

EQ Shift
EQ, or equalization, is the application of a boost or cut to specific frequencies in audio program. The term “EQ shift,” as used in a QC log or report, refers to a sudden audible change in the frequency content of a program. Take, for example, a film in which two characters are having a