I can't really provide a link, as there was no resource that just said "here's how to make gray noise."  I had to figure it out myself.

I meant a link to the ISO standard. ISO 226:2003 - http://www.iso.org/iso/catalogue_detail.htm?csnumber=34222

I found them in a matlab thingy back when I made it, but can't find it online any more - if you can find something similar, I recommend that as a cheaper alternative.  I would paste them here, but it's a lot of data (most of it useless, as we're not going to be mixing for very much below 60dB SPL).

...

You can extrapolate the curves to any dB SPL value you want, but I'm not going to go into that here.

Found this in about 5 seconds... Google "matlab iso 226"... about 35 lines without this header
http://www.mathworks.com/matlabcentral/fileexchange/7028-iso-226-equal-loudness-level-contour-signal

%        The frequencies evaulated in this
%         function only span from 20Hz - 12.5kHz, and only 29 selective
%         frequencies are covered.  This is the limitation of the ISO
%         standard.
%
%         In addition the valid phon range should be 0 - 90 dB SPL.
%         Values outside this range do not have experimental values
%         and their contours should be treated as inaccurate.

Also, this blurb from ISO:

"The specifications are based on the following conditions: the sound field in the absence of the listener consists of a free progressive plane wave; the source of sound is directly in front of the listener; the sound signals are pure tones; the sound pressure level is measured at the position where the centre of the listener's head would be, but in the absence of the listener; listening is binaural; the listeners are otologically normal persons in the age range from 18 years to 25 years inclusive."

"I highly recommend not using the values for [...] 20KHz"... is the matlab header lying? "you actually need to shape pink noise, not white noise. It's important when going from SPL to digital that you still follow that 1/f  line." Why? If you're shaping it, why does white/pink matter? "After that, you'll probably also want to add on a strong low pass around, say, 50Hz and a high pass around, say 15KHz, just to soften things a little bit further." Why? How's this, say, exact? If you can write "DJ software," why not write software to compute the grey noise and ditch the EQs? Your profile says you're 44? You are welcome to explain the inconsistencies. I'm sure you have some reason for all of them. After that lengthy monologue, and no link to audio other than your SoundCloud... I'm not inclined to continue speaking with you about this subject.

btw... in a document suggesting ISO 226 should be revised yet again... Page 147 http://dx.doi.org/10.4236/oja.2012.24016... saved you 88 francs.

Quote from: Babasmas on January 10, 2016, 03:27:14 pm

This is not a bad idea, but it is really not a good one either. If you look at the Pink Noise spectrum he showed. it's boosted on bass. Which is dangerous, first because it could break your ears, then second because it will break your gear. Low frequencies have more power than mid/high.

For example, if a track has too much low, you'll hear perfectly, but if it has too much high, you probably won't notice it or it will be hard.

but afaik, the lower the frequency, the more db it needs to match the higher frequencies :/
idk i read it somewhere. probably bogus

As I said, I was wrong.

I have exam tomorrow about that, so I'll need probably to clarify why I've said that.

First thing where I was wrong, is White is the opposite of Pink. (Noise speaking oc) White is stable and has the same sound level at every frequency. BUT when you hear it, you can hear that the high are more powerfull than the low. Why ? Because the high frequencies needs more energy to make the air move. (Because as everyone know, the sound is a variation of the air molecule)
So this was wrong

Pink Noise are basically the opposite of White Noise.

In the pink noise (a real pink noise), there's a decrease of 3dB per octave. In the white noise, there's an increase of 3dB per octave. If there's not, this is definitely not a pink/white noise. It's not supposed to be flat.

Or at least no entirely. Speaking of perceive sounds, I was right. Physically speaking, I was wrong. The physics part are the most important. So i was wrong.

Second, i said that the frequency sound level of a white noise increase of 3dB per octave, wrong again. That's what the pink noise does. The blue noise decrease of 3dB per octave.

So I was wrong, but still... It's not a great idea, since you don't have a correct perception of it.