Bob,

That information is extremely interesting and very useful - thank you
for all your investigations.

I'm intrigued by your description of the Flatness control, in which I
assume you are quoting Hugh Pyle ("Inguz").

It says "often a flat target can sound thin and, well, flat". 

Many people (perhaps most) using DRC don't actually use flat targets but
ones based to some degree on the B&K and similar curves, which are flat
to 500Hz, 1000Hz, etc (depending on the curve) and then gently drop
away, on the basis that these sound more subjectively "flat" than a flat
target.

However, I suspect that isn't really what the explanation of the
Flatness control means. 

My filters are generated by Acourate and the resulting sound, using
Inguz DRC is anything but thin and "flat" - quite the opposite, the
sound is full, even and with depth. But then it depends on what was
meant by "flat" - dull?, smooth? lacking in depth? lifeless? 

I suppose the sophistication of the software used to generate the DRC
filters (together with the parameters used when generating the filters)
are critical to the end result when using Inguz (or similar DRC
"engines") and I am very happy indeed with the sound with the Flatness
left at 10.

I find the Inguz DRC (together with the Acourate generated filters) is
extremely worthwhile. We all have different approaches to these things
but I only use the DRC functions and leave  the other settings off, on
the basis that very often "less is more".



Touch, Meridian G92, Meridian G55, PMC OB1i speakers, HP Proliant
Microserver/Ubuntu, PC/Windows 7, iPad 4, iPeng, Squeezepad.
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