Graphic vs parametric equalizer
This is a pretty fascinating feature because it makes the process of equalization very precise. This variable frequency is called the Center Frequency. The parametric equalizer allows the user to select any particular frequency. That year saw the rise of parametric equalizer in the live music scene and studio. The following year (1972 ) George Massenberg, who was still a teenager, wrote a paper to AES in Los Angeles concerning parametric EQ and it’s use in music production. As the name suggested, this equalizer could make arbitrary selection of frequency and gain in three overlapping audio bands. In 1971, Daniel Flickinger invented a tunable equalizer called ‘ Sweepable EQ’. Graphic equalizers were pretty famous until that point but people wanted to break out of this fixed frequency constraint. Until 1970’s if any kind of Equalizer existed it had fixed center frequencies. This equalizer is capable of very fine adjustments hence it is widely used in the market.ġ950’s saw the growth of equalizers as an audio production tool. This feature allows the user to alter any specific frequency thus making the equalization process very customized. Unlike Graphic equalizer, it has variable center frequency. It has three main parameters: gain (amplitude), center frequency and bandwidth (inverse of ‘Q’). As the name suggests, Parametric Equalizer helps to edit different parameters of an audio spectrum.