Regarding equalization what does "Q" mean?

RE: Regarding equalization what does "Q" mean? (Guitarhacker)

Sat, 25 Oct 2008 21:21:08 GMT

Hey Bit... could you be a little more specific and not so vague??? " />

RE: Regarding equalization what does "Q" mean? (ralphwiggum)

Sat, 25 Oct 2008 11:07:18 GMT

makes sense to me now too, thanks

ditto

RE: Regarding equalization what does "Q" mean? (pooskie)

Sat, 25 Oct 2008 10:30:31 GMT

makes sense to me now too, thanks

RE: Regarding equalization what does "Q" mean? (Lee2216)

Wed, 15 Oct 2008 16:03:09 GMT

Thanks gentlemen for your response! That clears it up for me guys...it makes sense now thanks
!

RE: Regarding equalization what does "Q" mean? (lazarous)

Wed, 15 Oct 2008 15:51:39 GMT

I often describe Q as the "shape of the bell" for your equalization curve - If you want a wide bell, use a low Q. If you want a narrow bell, use a high Q. Bitflipper's description is great!

Corey

RE: Regarding equalization what does "Q" mean? (bitflipper)

Wed, 15 Oct 2008 14:09:49 GMT

"Q" stands for "Quality", just a bit of trivia. Mathematically, it is the ratio of bandwidth to center frequency, with bandwidth being defined as the difference between the lower and upper frequencies where the level is 3db down from the center frequency.

For example, if the -3db points are 100Hz and 200Hz with a center frequency of 150Hz, the Q would be 150 divided by 100, or 1.5.

The higher the ratio, the steeper the filter. If you were to narrow the band in the previous example, so that the -3db points were at 145Hz and 155Hz, the Q would be 15 (150 / 10), a very narrow notch or bandpass.

So for practical purposes, just think of Q as a synonym for the narrowness of a filter. The higher the Q, the narrower the filter and the steeper the slope.

RE: Regarding equalization what does "Q" mean? (Legion)

Wed, 15 Oct 2008 09:18:29 GMT

"Q" is the width of the eq-band you are adjusting. A low q-value would mean you are adjutsing a wider area of "herzes" (often preferred when boosting), while a high value would narror the area down (for example used when sweeping the band to find the sweet spot or for cutting troublesome freqs).

Regarding equalization what does "Q" mean? (Lee2216)

Wed, 15 Oct 2008 09:10:01 GMT

When I hear people talk about equalization it seems I always run in to the term "Q". I have no idea what that means maybe ya'll can help me out!