Equalization (EQ) is the process of boosting or cutting certain frequency components in a signal. The name originates from the application of trying to obtain a flat frequency response – no coloration. For example, when transmitting (analog) voice signals over long distances of wire, the high frequencies would be attenuated. By applying some equalization filters, this loss could be ‘undone’ so that the voice would sound more natural on the receiving end. Equalization is a very important tool in recording for bringing out an instrument’s sound.

Equalization (EQ) is the process of boosting or cutting certain frequency components in a signal. The name originates from the application of trying to obtain a flat frequency response – no coloration. For example, when transmitting (analog) voice signals over long distances of wire, the high frequencies would be attenuated. By applying some equalization filters, this loss could be ‘undone’ so that the voice would sound more natural on the receiving end. Equalization is a very important tool in recording for bringing out an instrument’s sound.