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Keskusteluryhmät

Why does the AutoCal routine make so few adjustments?

brucegeddes, muokattu 1 Vuosi sitten.

Why does the AutoCal routine make so few adjustments?

Youngling Viestejä: 2 Liittymispäivä: 7.4.2021 Viimeisimmät viestit

Each time I perform an autocal (on my untreated room with my 2 8331As), only a fraction of the nodes have values in to attempt to flatten the curve. If I go in myself I appear to be able to get everything way closer to a flatter line by using all the extra nodes. My result is bumpier definitely but I appear to be able to do some really obvious adjustments that bring things down to the line. Also there are never any autocal nodes positioned above 1000k. Is this all expected? - is the calibration software only supposed to be a starting point? In the  attached is the pic of the before and after. Admittedly I could have done a better job around 50Hz, but the pic makes the point.)

lukester, muokattu 1 Vuosi sitten.

RE: Why does the AutoCal routine make so few adjustments?

Jedi Master Viestejä: 296 Liittymispäivä: 22.4.2010 Viimeisimmät viestit

The nodes above 1k are 1st order reflections that you should treat physically with absorbers.
Google for the mirror trick.
In the studio, what GLM says is correct, not a starting point.
at home you might try reducing the bass filters a bit to get a phatter sound.

brucegeddes, muokattu 1 Vuosi sitten.

RE: Why does the AutoCal routine make so few adjustments?

Youngling Viestejä: 2 Liittymispäivä: 7.4.2021 Viimeisimmät viestit

Thank you! I am wondering if I am causing any harm by flattening the curve myself with my manual adjustments? Something like Sonarworks would leave the curve flat. I don't want to damage my sound by taking advantage of the manual adjustments option

lukester, muokattu 1 Vuosi sitten.

RE: Why does the AutoCal routine make so few adjustments?

Jedi Master Viestejä: 296 Liittymispäivä: 22.4.2010 Viimeisimmät viestit

Your question is a bit ambiguous.
I'd recommend you use GLM to measure and store the settings.
Then you can play around any way you like and compare to the stored setting.

For example: GLM measurment gives you a -15dB filter at 62 hertz,
try changing the filter to -10dB and see if you like that better.
Many home useres will prefer a bit more bass, even if it means less true flatness of the frequency response in the room.

emmanuel_cambier, muokattu 1 Vuosi sitten.

RE: Why does the AutoCal routine make so few adjustments?

Youngling Viestejä: 8 Liittymispäivä: 20.12.2019 Viimeisimmät viestit

I find your answer much more ambiguous than the question, frankly !

With the example provided it should be quite simple for someone at Genelec to give a definitive answer like : "what you did in your example is the right thing to try to achieve" or "what you did in your example will only degrade things"

That's the kind on unambiguous answer I expect from Genelec, to a very valid question !!

lukester, muokattu 1 Vuosi sitten.

RE: Why does the AutoCal routine make so few adjustments?

Jedi Master Viestejä: 296 Liittymispäivä: 22.4.2010 Viimeisimmät viestit
emmanuel_cambier:
 

That's the kind on unambiguous answer I expect from Genelec, to a very valid question !!

Well, good thing I don't work for Genelec then?
The ambiguity lies in "flattening the curve"
If you "flatten" or "lessen" the correction GLM or Sonarworks gives you, you make the response in the room less flat.
To make the response in the room flatter,  you'd make the correction in GLM bumpier or less flat.

Neither GLM nor Sonarworks can give you true flatness in an untreated room.

 

emmanuel_cambier, muokattu 1 Vuosi sitten.

RE: Why does the AutoCal routine make so few adjustments?

Youngling Viestejä: 8 Liittymispäivä: 20.12.2019 Viimeisimmät viestit

It seems you didn't get what the OP ment by flattening the curve.

More than flattening what GLM has worked on, he meant to flatten the curve where GLM hasn't done a thing, despite the fact that there are a lot of filters left unused !!

That's plainly said in the original question and it would be great if someone "in the know" could chime in !!