The one linked is the unbuild filter of "Acoustic Analyzing System", or better to say the Realtime Analyzer part that among other comes with a the best test-signal generator (+filter) that I found for PC. And the best thing is that the test-signal Generator part is free to use.forge wrote:what is that one you've linked? Have you tried sound forge?
The noise-floor also happens with the lowest possible Q of 0.10 and all 8 EQ point at low cut.this is actually something I was going to say about your earlier images - remember EQ8 also provides a gain boost as the Q increases - like a resonant filter on a synth, so it's possible that is why you are seeing the boost in the noise floor on the Spectrum - you may need to pull the gain down more to make up for it or use a 2nd filter as well
It has such a way and I already showed you how, mister. You need to watch the animated graphic on top of page 2.If the EQ8 had a way to disable this boost and make it so that Q just adjusted the steepness of the slope then I may not even bother loading RenEQ at all
![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)
I had to wrap my head around that one for a few minutes when I first needed a steep filter in Live, but it's dead easy. Here comes the technical part:
You can use the following Qs without getting gain boost of more than 0.01 dB (may be higher than 0.00 dB though, depending on the source signal).
High Pass: 0.71 (default)
Low Shelf: 4.12
Bell: 18 (0.00 dB!)
Notch: 18 (0.00 dB!)
High Shelf: 4.12
Low Pass: 0.71 (default)
To make the filter steeper simply add additional EQ points with the very same setting and think of them like poles. Here's another animated picture to demonstrate how it works.
![Image](http://img134.imageshack.us/img134/4862/eq84poleoi5.gif)
It's far from convinient! If you want to change frequency you need to click through all the single EQs (or map a midi knob to all EQs).
I noticed something odd with Hi-Quality mode. It kind of allows you to set Q higher, but every few seconds one of the two stereo channels may get a gain-boot while the other does not. The higher the Q the more often it happens.