Recent content by dkulmacz

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    Should I add yet more absorption panels or diffusors to an already treated room?

    Technically "yes" I could do this, but it would be too disruptive to the room; it's both a listening space and a music room with guitars, basses, and various synths taking up space, and this type of setup would make that difficult/impossible to maintain. But thanks for the suggestion.
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    Odd low frequency dip, and a way to address it... any comments?

    Thanks you for your response (I had to use Google Translate, but I understood it.) I am confused by phase issues; I was considering trying to use the MiniDSP 2x4 HD's 2048 tap to create a single FIR filter exclusively to address a phase issue but don't know if this is possible, and how to go...
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    Should I add yet more absorption panels or diffusors to an already treated room?

    Thanks for the feedback! Yes.... I've attached the most recent REW profile of the room and system. I have estimates of the metrics you mention, but don't really know what to do with them. I believe the reverb decay is pretty OK considering the size of the room, but aside from that, nothing...
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    Should I add yet more absorption panels or diffusors to an already treated room?

    I'm designing some improvement to my home studio/music room and looking for some advice on how to finish up. Basic room is 10' by 12' by 8' with an open closet on the back wall. Speakers are two Kali IN-8 monitors and an SVS SB-1000, all placed up against the 10' wall, controlled with a...
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    Odd low frequency dip, and a way to address it... any comments?

    Do you know how a convolution engine with a correction IR compares to using FIR filters? The 2x4 HD supports FIR filters (but not convolution) and there are tutorials on the MiniDSP site about how to calculate the FIR filter coefficients in REW, and overall a lot of it seems similar to the...
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    Odd low frequency dip, and a way to address it... any comments?

    What, pray tell, is that? I have a reverb plugin for Ableton that I believe uses convolution to mimic specific reverb spaces, but I'm guessing that's not what you are talking about. I think I've heard of processors that take an IR of your room and "undo" the response using convolution.... is...
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    Odd low frequency dip, and a way to address it... any comments?

    I think a lot of the improvement in that area is because both the midrange/tweeter pair and the measurement mic were raised about 8 inches higher, which minimizes the desk reflections that cause the dip. If I adjusted the stand heights to put the tweeter back at ear level, I think the...
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    Odd low frequency dip, and a way to address it... any comments?

    So.... I've done some more measurements and made some changes. In the end, I guess this wasn't "odd" at all.... it seems like it was just room modes as would be expected. I tried most of the suggestions made here, except for moving the subwoofer. I tried different crossover settings, and...
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    Odd low frequency dip, and a way to address it... any comments?

    88 Hz is roughly 12.75 feet wavelength..... the room is 12 feet long, with about half of the back wall actually an open closet two feet deep, so 14 feet. So I have one dip at around 109 Hz or 10 feet (room width) and one dip at 88 Hz or 12.75 feet (roughly room length). There doesn't seem to...
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    Odd low frequency dip, and a way to address it... any comments?

    Thanks for the feedback! Well, maybe I'll start moving some furniture and try the old "sub in chair, crawl on floor" method to find the best spot for it, since moving the sub seems to be a common idea. I'll also take some added data at other positions before I do that. Can you tell me what...
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    Odd low frequency dip, and a way to address it... any comments?

    And here is a diagram showing the layout of the room and position of the speakers, FYI. The monitors lay on their sides with the tweeter/Midrange on the outside. The sub is pointing sideways with the driver at the center of the room. Data taken at the yellow asterisk point.
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    Odd low frequency dip, and a way to address it... any comments?

    Hopefully these are all done correctly...... I'm not sure what the "0 degree measurement" means for the nearfield; I just moved the mic (omnidirectional from Dayton Audio) in front of the speaker, pointing towards it and upwards at a 45 degree angle.
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    Odd low frequency dip, and a way to address it... any comments?

    Single channel sweep, no sub..... severe but wide dip Double channel sweep, no sub..... very narrow severe dip (the worst) Sub only sweep, no crossover..... wide shallow dip Single channel sweep, +sub, 80 Hz crossover..... severe but wide dip Double channel sweep, +sub, 80 Hz crossover...
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    Odd low frequency dip, and a way to address it... any comments?

    I have a bedroom studio using a pair of Kali Audio IN-8 monitors and an SVS SB-1000 sealed subwoofer, powered by a MiniDSP HD unit. The room has a decent amount of DIY rockwool acoustic treatment; floor-to-ceiling 15" superchunk wedges in the front corners, 6" thick panels on the sidewalls at...
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    Onkyo Has Been Purchaed!

    The masses have moved on to Alexa as their hi-fi music source. Very sad to hear...
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