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Whats up with the Waves plugins?????
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john_c
IsraTrance Junior Member
Started Topics :
47
Posts :
263
Posted : Aug 4, 2006 23:01
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Try this. Solo a heavy bass sample and put a Waves Q1 or Q2 or Q3, etc EQ on it, and make a steep lowpass curve around 40 or 50 so that all the low frequencies are gone, then put a PAZ analyzer on the master chain. How the hell is all my bass still there when i view the PAZ Anaylzer?? What is going on?? |
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The_Guardians_Of_Truth
Atma
Started Topics :
16
Posts :
379
Posted : Aug 4, 2006 23:12
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Well depends of the Eq you use..
But...
Most of Eq's cut only 16-18 Db from the original sound..not all the freqs.
Well imagine this : from a sample with a musical spectrum of -95 db, you remove only the most audible part of it (16-18 db ussualy), not completly. There is still lots of freqs left.
To cut the freqs completly, you need to use a good quallity filter. not a eq.
Eq's are designed for small and very acurate adjustments, not for complete remove of the freqs.
I hope you understant the ideea, because my english is not very good 
Boom !
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black_cat
Started Topics :
2
Posts :
101
Posted : Aug 4, 2006 23:50
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PAZ analyzer is not very accurate when it comes to lower freqs. in fact it is not accurate enough at all. try to use elemental audio inspector xl spectrum analyzer with high resolution or maybe voxengo one. there is also a nice and quite accurate one in firium eq. well i don`t know how much the eq from waves pack cut, i guess it should be about 18 db and this should be visible on analyzer.
cat |
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D-Alien
Oxidelic
Started Topics :
51
Posts :
619
Posted : Aug 5, 2006 00:20
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hei friend I'm posting u here 2 posts I've received from my friends here where they have enlightened the same "problem" i've encountered lately.
Mr. UNDERTOW said:
Not all high pass filters are the same. There are differences in slope (6dB/oct, 12dB/oct ... 48 dB/oct). There are also differences in phase response. Some high pass filters set to 30Hz can have effects on the phase of the signal all the way up to 2Khz or more. Some are resonant, some are not.
Also keep in mind that these filters are not brick walls. There is still stuff below the high pass filter cutoff frequency. Usualy, the cutoff frequency is equivalent to the -3 dB point. So if you set your filter at 30Hz, it means that the output is 3dB down at 30Hz.
In theory, if you have very good monitoring and accoustics, I would say just trust your ears. In practise most of us don't have the type of monitoring and/or accoustics to really be able to judge what is going on at these very low frequencies.
The best solution is to stay on the safe side and keep the high pass filter quite low. (30 Hz or lower) Or even better, if your material is getting mastered by a pro, leave the low-end untouched and let the mastering engineer set things right.
I am talking mainly about the kick or a filter on the stereo bus. The bassline can usualy be filtered a bit higher than the kick. Whenever possible, use a linear phase hipass filter as this will keep things clean and punchy at the bottom end.
and now mr. XABBU said:
As undertow said , there is not ...
In Filter theory a filter is always specified by its cutoff/passband points, which as you will notice are always given as a frequency/dB pair. Also the so called optimal filter would be the brickwall filter you are talking about , but in reality all filters are just trying to get as close as possible to the ideal filter. the notation 6dB/oct ...24dB/oct etc. just says how steep the slope of the filter is. as undertow said, the frequ of the filter is given relative to the point of -3dB.
Its all about the ratio of the different bands to each others, what will make you percieve the sound different... e.g. if you highpass with a filter a couple of times you will achieve that the low frequ below cutofffrequ will get so small compared to the high content your ears will give you the illusion of the them not being there at all... that is where psycoacustics come into play ... best to read a couple of googles there
and always remember ... human ears are not linear but more quite based like on a logarithmic scale .... -3dB means half as loud in terms of the energy content at cutoff frequency.
if you are still unsure what the heck I am talking about have a look at:
http://en.wikipedia.org/wiki/Decibel
cheers,
xaBBu
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friend, i hope this info clears you the situation ehehehe
cheers and happy tweaking
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