Audio Post Production Knowledge Base

Today's Audio Term: S-VHS Super VHS was introduced in...

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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

Metadata
Metadata is used to facilitate the understanding, characteristics, use, and management of data based on the type of data and the context of its use. Some examples: A) In a library database, metadata about a book would likely include the author, title, genre, a description of the content,

Amplitude
A sound wave moving through the atmosphere pushes air. As the air in front of the wave gets compressed, the air pressure goes up. The magnitude of change in the air pressure from that sound wave is its amplitude. The bigger its amplitude, the louder the wave will sound.