Music Production

EQthe levels of frequency response of an audio signal, or controls which allow their adjustment.processing a signal in order to control or adjust the amplitude of particular frequencies in the spectrum20Hz-20KHzsome application - compensating for the tonal deficiencies of a sound source- removing unwanted or unnecessary frequencies from your sound source - enabling blending of vastly contrasting or extremely similar sounding sources- creating 'space' in the mixmasking - frequencies blend until you cant distinguish one from the othertypes selectable frequency EQ - a selectable frequency is used to choose a selection of frequencies to manipulate (atenuate or boost at that frewuency)fixed band EQ - really only on DJ controls + guitar amps - allows you to manipulate a particular frequency in each band graphic EQ - used for live sound application (roomodes)parametric EQ - the most flexible FiltersFilters refer to the way in which a device processes equalisation low pass, high pass, band pass,Peaking filter (bell curve at the desired frequency) shelving filters Attenuation and boostA synthesiser is its filtersome filters are more expensive due to its particular sonic character Resonance - if you cut frequencies off, rather than have it as a flat cutoff and can add a resonance notch, and increase the volume just before the cutoff you can trip people's ears Passive EQ - processed via a series of inductors, capacitors and resistorsActive EQ - processed via powering the signal or more specifically 'altering the feedback loop of the op-amp'cut - to diminish the amplitude relating to certain frequency boost - to increase amplitude relating to a certain frequency Q control - how broad or how narrow a range of frequencies is affected