Filters - non parametric EQ - with REW

[ghstudio]

I'm trying to learn how REW assigns filters, works with EQ's and to see if it will do what I want. It is interesting to see how the different supported equalizers would be set up and how the resultant curve looks....which is surprisingly different depending on the EQ.

I am using a 31 band EQ, not a parametric EQ....and it seems that REW only suggests parametric eq settings.

Is there any way to show the fixed 31 eq band settings on the graphs (to help me manually adjust the EQ)?

Is there any way to get recommended settings for a 31 band EQ (non parametric)?

Is there any way to get REW to suggest gain settings for filters in addition to the cut suggestions?

Is there any way to get recommended EQ settings full range instead of limiting the under 500hz?

[Wayne A. Pflughaupt]

REW is designed to generate recommendations for parametric filters. It won’t work automatically for higher frequencies because it’s the lower frequencies that are the most affected by the room. Unfortunately REW will not recommend boosted filters, but it’s easy enough to generate your own.

Is there any way to show the fixed 31 eq band settings on the graphs (to help me manually adjust the EQ)?

Under the “Equaliser” tag at the top left of the screen, chose the “Generic” option. Choose “PK” as type, and set the bandwidth to 4.3 Q (which is 1/3 octave). Then you can enter in the frequency field the numeric frequency centers your EQ has – 40 Hz, 50 Hz, 63 Hz, etc. Changing the gain, you will see on-screen the effect of 1/3-octave filters. I think you’ll find out pretty quickly how limited 1/3-octave EQs are for bass.

Regards,
Wayne

[weverb]

You could also use the RTA feature of REW and adjust the graphic eq on the fly. With the RTA function, you see the changes right away without having to go through the filter steps.

[ghstudio]

weverb wrote:

You could also use the RTA feature of REW and adjust the graphic eq on the fly. With the RTA function, you see the changes right away without having to go through the filter steps.

I am just learning REW....yes, the spectrum, mode RTA 1/3 octave appears to do exactly what I want. I've been iterating by changing settings and then doing another measurement....but with spectrum, I can just generate pink noise and set the result to give a flat response curve. Right?

[brucek]

Read this post on the settings for Spectrum and REW. Note the periodic (PN) noise.

brucek