technoguy

In audio processing, equalization (EQ) is the process of modifying the frequency envelope of a sound. Etymologically, it means to correct, or make equal, the frequency response of another audio device. The term "equalizer" is sometimes applied to audio filters in general, though strictly speaking not all audio filters are equalizers.As a related term in communications technology, an equalizer is an electronic filter used to compensate for signal distortion suffered during signal propagation.