Pink noise should give a flat curve in the spectrum analyzer using the logarithmic scale, that's how pink noise is defined. So imho having it active is necessary. Can anybody think of a possible reason NOT to have it activated ? ( Playing white noise with the linear scale doesn't make a visible difference one way or the other, so it won't be used for that )
Purpose of Spectrum Analyzer -> Flat
Purpose of Spectrum Analyzer -> Flat
A question regarding the purpose of the new option Settings > User Interface > Spectrum Analyzer > Flat (Make spectrum flat for a pink noise) :
Re: Purpose of Spectrum Analyzer -> Flat
how to use this option?
Re: Purpose of Spectrum Analyzer -> Flat
I am curious how these options are related:
Say I arbitrarily set the following options: I click to disable the 'Flat' option, and the scale ratio immediately changes to what seems to be an oddly specific value: I click to enable the 'Flat' option, and the scale ratio immediately changes to another oddly specific value: What is the significance of these Scale, Ratio (n) values of 0.505 and 0.615 ?
How are these related to the scale of the spectrum analyzer as it was before this option was even available?
Say I arbitrarily set the following options: I click to disable the 'Flat' option, and the scale ratio immediately changes to what seems to be an oddly specific value: I click to enable the 'Flat' option, and the scale ratio immediately changes to another oddly specific value: What is the significance of these Scale, Ratio (n) values of 0.505 and 0.615 ?
How are these related to the scale of the spectrum analyzer as it was before this option was even available?
Re: Purpose of Spectrum Analyzer -> Flat
Afaik "Scale, Ration(n)" is just a scaling factor, nothing more. "Flat" is two things - another scaling factor, implemented in such a way as two change "Scale, Ratio(n)", and another weighing of the different frequencies. The low ones get amplified, that's probably the reason for the decreased overall scaling. See the representation of pink noise in the logarithmic view with "Flat" enabled :
And with "Flat" disabled :
Pink noise is by definition flat in this view, therefore the "Flat" setting is necessary. ( and I wouldn't know why ever to disable it )
And with "Flat" disabled :
Pink noise is by definition flat in this view, therefore the "Flat" setting is necessary. ( and I wouldn't know why ever to disable it )
Re: Purpose of Spectrum Analyzer -> Flat
For the linear scale it looks like this with white noise :
Here the deactivation of "Flat" isn't recognizable in the relative strength of the representation of the different frequencies, but only due to the decreased scaling :
Here the deactivation of "Flat" isn't recognizable in the relative strength of the representation of the different frequencies, but only due to the decreased scaling :
Re: Purpose of Spectrum Analyzer -> Flat
This correction for the logarithmic scale seems to have been introduced with version 2.08 :
And I would think the "Flat" option is just the subsequently implemented switch for that.
Re: Purpose of Spectrum Analyzer -> Flat
... and if you look at pink noise ( as a representation of real music ) with the linear scale ( not that this would be sensible ) with "Flat" enabled :
And without "Flat" :
So I think there are people who like to watch the spectrum in the linear mode ( why ever ? no idea ! ). And with the introduction of the "Flat" correction without the switch in 2.08.0 for them the spectrum in the low frequencies shifted into the red. So now they can either disable the correction or just scale down.
And without "Flat" :
So I think there are people who like to watch the spectrum in the linear mode ( why ever ? no idea ! ). And with the introduction of the "Flat" correction without the switch in 2.08.0 for them the spectrum in the low frequencies shifted into the red. So now they can either disable the correction or just scale down.
Re: Purpose of Spectrum Analyzer -> Flat
Get yourself some sine-sweep-testtones and play them with spectrum sensitivity = 1. You'll see that with "Flat" activated the amplitude remains constant, as one would expect. As the sweep has a constant amplitude, that's another argument to always keep it activated.
Re: Purpose of Spectrum Analyzer -> Flat
I have no problem with it being activated (my first "arbitrary" settings are the ones I specifically use). You don't need to defend the "flat" option. I'm on your side. I am just wondering why it resets the scale value to something seemingly random yet specific by deselecting and selecting that option . . .
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