On Wed, 11 Mar 2015 10:39:25 +0000, Sumatriptan
wrote:

Good morning experts ;-)

I've been going through my HFN test record. Most of it makes sense but I
don't understand my pink noise results. They show an approximate 10 dB /
decade tilt, which is what I would expect from pink noise. For example,
here's a frequency analysis of a 'perfect' pink noise sample generated
by Audacity.

http://www.nu-ware.com/Misc/Screensh...nk%20Noise.png

Here is the result of the HFN pink noise test using my M55E cartridge.

http://www.nu-ware.com/Misc/Screensh...nk%20Noise.png

However, when I look at test results around the web I see essentially
flat curves from pink noise tests. Like this:

http://www.tnt-audio.com/sorgenti/shure_m97xe_e.html

So, what am I missing?



Those last curves have been "corrected" to look flat. Essentially what
they are showing is the difference between the perfect pink noise and
that recovered from the record.

Yours is showing signs of being a bit saggy at the top and bottom of
the band. Could do particularly with a touch of bass lift.

d