Audio Post Production Knowledge Base

Today's Audio Term: Matrix When audio engineers matrix...

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Bias
Bias is a very high frequency signal that is incorporated in the recording of any magnetic medium. Magnetic recording equipment generates a bias current that is required to enable the magnetic oxide to record the audio portion of a signal - somewhat like an audio catalyst. The signal generated

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.

Ornament Sound Experiments
The 1932 film Ornament Sound Experiments, created by experimental filmmaker Oskar Fischinger, utilized the optical sound track in a very unique way. Using precise graphical icons in place of the usual waveforms in the soundtrack area of the film, a "synthesized," or "pure" sound, as