ABSTRACT
This chapter outlines some noise reduction techniques, as well as some noise reduction plug-in choices that are available. Hum, buzz, hiss, drone, swish, whisper and more are the sounds of noise on tape. It plagues amateurs and professionals alike in any number of situations, usually beyond the control of the videographer. Wind, waterfalls, rivers, and traffic are all extremely difficult noises to remove, simply because the noise sources are constantly shifting the active frequencies, making the noise a constantly moving target. Noise reduction tools come in two flavors only; good or inexpensive. Noise is a series of frequencies that are part of an undesirable sound. Using Fast Fourier Transformation, the most effective noise reduction tools allow selective removal of troublesome frequencies. Finding and isolating the noise-related frequencies from the desired frequencies contained in dialog or a performance is where the challenge comes in.
