Cutting EQ

W

walshi

New member
Just a quick point, when people say "cut the eq" or "roll off" the frequency at, lets say, 250hz. What exactly do they mean? do they mean cut by a few db from 250 to 0hz or reduce down to 0Db immediately under 250 hz.
 
'Cut the EQ' is a clumsy expression, but it probably means to reduce the level of a particular frequency. So, if there's too much energy at 250 Hz, you can cut it, reduce it, by any amount you like, although maybe anywhere between 2 and 6 dB would be kinda normal for most purposes. Depending on how wide a Q you use, it only affects the frequencies at or around 250 Hz and leaves everything else below and above that untouched. Precision EQing.

'Roll off at 250 Hz' isn't the same thing. It means that, starting at 250 Hz and working down from there, you gradually increase the amount of reduction of frequencies. This means that 200 Hz will be less powerful (less audible) than 250 Hz, and that 150 Hz will be less powerful than 200 Hz, and so on until at some point you reach the bottom that your system is capable of. Low end rolloff is a way to get rid of unwanted lower end frequencies - on guitar, for example, you might want to dump everything under 82 Hz, which is the lowest frequency on the instrument (the track might have picked up all sorts of rumble and low end shit while you were recording it, but you don't need that on your recording, do you?).
 
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