Audio Post Production Knowledge Base

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

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Cross-fade
A cross-fade is used to blend one piece of audio into another. During a cross-fade, the volume of the tail of one piece of audio gradually decreases, while the volume of the start of the next piece of audio gradually increases.

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.

Wow
All recorded media are designed to play back at specific, stable rates of speed. If the record or playback speed fluctuates, random variations in the pitch of the program, called wow, will result. Wow is inherent in any mechanical transfer, though in an optimal transfer, it should be so minor as