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TOPIC: DDRC-22D Impulse Correction Only?

DDRC-22D Impulse Correction Only? 11 months 1 week ago #29189

  • MrDerrick
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If you close the freq adjustment curtain, set both freq dividers all the way down or up, essentially removing any freq correction, would the DDRC then only adjust for speaker impulse response?

If so, then would it be best to only take one measurement at the center position?
What would be the best mic orientation for speaker impulse response only?
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DDRC-22D Impulse Correction Only? 11 months 1 week ago #29212

  • devteam
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@ MrDerrick

Interesting question, but unfortunately we've got no idea since we've never heard of anybody using the platform as such... I am hypothezing that from the point you close both curtains, the DIRAC will not perform any correction at all.. Just a guess.. Maybe something you can easily confirm with Dirac live trial software?

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MiniDSP, building a DIY DSP community one board at a time.
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DDRC-22D Impulse Correction Only? 10 months 1 day ago #30037

  • darrellh44
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I have an 88a and have a similar question. If I move the upper curtain down to 300 Hz, does that remove magnitude and mixed phase (impulse) correction above 300 Hz, or just magnitude correction?
Last Edit: 10 months 1 day ago by darrellh44.
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DDRC-22D Impulse Correction Only? 9 months 3 weeks ago #30141

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@ Darrellh44

If the curtain is moved down to 300 Hz the magnitude correction is removed but not the phase correction

HTH

DevTeam
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DDRC-22D Impulse Correction Only? 9 months 3 weeks ago #30166

  • darrellh44
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devteam wrote:
@ Darrellh44

If the curtain is moved down to 300 Hz the magnitude correction is removed but not the phase correction

HTH

DevTeam

Is there a way to place a curtain on both phase and magnitude correction? I would like Dirac to only apply correction below the Schroeder frequency.
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DDRC-22D Impulse Correction Only? 9 months 3 weeks ago #30169

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The purpose of the curtain is really here to control up to where you control.. :-(
Note that you're switching between above and below in your questions,

"If I move the upper curtain down to 300 Hz, does that remove magnitude and mixed phase (impulse) correction above 300 Hz, or just magnitude correction? "

We answered for "above".

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DDRC-22D Impulse Correction Only? 9 months 3 weeks ago #30177

  • darrellh44
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I think my original question was consistent (maybe I should have said right curtain instead of upper), but let me ask a different way. Is there a way to force Dirac to only correct magnitude and phase between 20 Hz and 300 Hz? I want all frequencies above 300 Hz untouched by Dirac. I would then use my 88BM's PEQ filters to correct just the anechoic response of my speakers.
Last Edit: 9 months 3 weeks ago by darrellh44.
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DDRC-22D Impulse Correction Only? 9 months 3 weeks ago #30220

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Yes, it's indeed possible. Simply drag the curtain to be between 20 and 300Hz.

Let's try to get question/answer right:
Question:If I move the upper curtain down to 300 Hz, does that remove magnitude and mixed phase (impulse) correction above 300 Hz, or just magnitude correction?
Answer: If the curtain is moved down to 300 Hz the magnitude correction is removed but not the phase correction

in other words, YES, it WILL remove magnitude correction "above" 300 Hz but not the phase correction.

Does this clarify?

HTH

DevTeam
MiniDSP, building a DIY DSP community one board at a time.
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DDRC-22D Impulse Correction Only? 9 months 3 weeks ago #30239

  • darrellh44
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Still confused. In my last post I asked:
"Is there a way to force Dirac to only correct magnitude and phase between 20 Hz and 300 Hz?" Note I asked magnitude AND phase.

You answered:
"Yes, it's indeed possible. Simply drag the curtain to be between 20 and 300Hz."

Then you went on to say:
""YES, it WILL remove magnitude correction "above" 300 Hz but not the phase correction.

These two statements to me are in conflict regarding phase correction between the curtains.

Thanks,
Darrell
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DDRC-22D Impulse Correction Only? 9 months 3 weeks ago #30241

  • john.reekie
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C'mon, the answer was quite clear the first time: www.minidsp.com/forum/dirac-series-suppo...orrection-only#30141
I am not miniDSP support.

"You must ask the right questions." - Dr. Alfred Lanning's hologram.
-> Have you read the User Manual??
-> Have you drawn and posted a diagram?
-> Have you posted a screenshot?
-> Have you posted your config file?
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DDRC-22D Impulse Correction Only? 9 months 3 weeks ago #30244

  • darrellh44
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Thanks John, but apparently there was some confusion in the way I asked the original question, so I'm not sure what that first response means. Also Markus in the AVS forum had a conflicting response to this as well, ie, he said that phase correction does not extend past the curtains.
Last Edit: 9 months 3 weeks ago by darrellh44.
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