new acoustic panels can u check what i can change ? - Gearspace.com
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new acoustic panels can u check what i can change ?
Old 3rd March 2021
Here for the gear
new acoustic panels can u check what i can change ?

hallo i make new acoustic panels with 10 cm width rockwool + bass traps with membrane 35 cm deep, there its my sonarworks result , how i can improve acoustic and delete this 40-50 hz 6 db ?? i add photos

Old 3rd March 2021
Gear Addict
TomSleebus's Avatar
The sonarworks graph is kind of an average, smoothed graph, not very useful for assessments. Measure with REW and share (read the sticky notes on how to).

First impression is your DIY traps do not cover enough mยฒ or are not deep enough to absorb the lows.

What's the room size? Do you have absorption in the back?

The foam is doing nothing below 250Hz :o)
Old 3rd March 2021 | Show parent
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in the back room
2 panel 10 cm with rockwool solid + 2 bass trap with 35 cm deep membrane
Old 3rd March 2021 | Show parent
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can u give me ur what up or something for communication ? im try configure the REW but its something wrong happen also im check youtube still something wrong doing
Old 8th March 2021
Is your entire rear wall treated? If yes, how deep is the treatment and what material did you use?
Old 8th March 2021
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avare's Avatar
๐ŸŽง 15 years
Y wre asked 5 days ago what the room dimensions are.
Old 10th March 2021 | Show parent
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on rear wall i have 2 panel(orange color on photos) with 10 cm deep , and 2 bass trap corner with 35 cm membrane(black one photo).Everything from acoustic wool rockwool sono solid+ canvas fabric , there photos..
and my dimensions : width 280cm and longer 410 and height 260
im think about change this 2 orange panel 10 cm for 30 cm deep ? its good idea ??
I don't know if it's a good idea to remove 6 db from the sub in setting genelec "BASS ROLL-OFF" on the back of the monitor is adjustable, but for me its more important delete this peak with acoustic panels, soo please help me, sorry for english im try best

Old 10th March 2021
Gear Addict
TomSleebus's Avatar
With length of 4.1m your room modes are on 42 and 84 Hz (and any multiple of that), The width is dictating the 61Hz mode you have (and by extension the 122Hz one). Only way to overcome is to get back wall treatment to 1/4th of the wavelength, that would be 2m of treatment for the 40Hz one :o). So in your case, put as much treatment as you can in the corners (35cm is the length of either wall side covered by the triangle?) and get the back full of treatment, 10cm is waaay to thin for those frequencies. I would not touch the db settings on the speakers, they only make the amplitude smaller, but tops and nulls will remain if they are room modes...
Old 10th March 2021
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TomSleebus's Avatar
And, where possible, put the monitors as close as you can to the front wall/window, that way the SBIR frequencies are pushed to the higher spectrum, where they are treatable (credits to both Johann and thethrillfactor who learned me that :o))
Old 10th March 2021 | Show parent
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the bass trap corner have 80cm width and 35 cm deep, u see on photo,I can not give speakers against the wall because I have too wide bass traps, i give new photos.Also when I had a monitor set with a width of 140cm far from the bass traps, my measurements were very weak and they did not hit anything below 40-150hz aborption,when again set the monitor to new width, at 170 cm I gave it closer to the bass trap and and my measurements showed that it was 100-150 hz by 9 db almost to 0db, sorry for my gramma english i try my best
i think if i change this panel orange from 10 to 30 cm will fix this ?(also i add photo) https://ibb.co/Hh38Vqy

Old 10th March 2021
Gear Addict
TomSleebus's Avatar
Ah yes good pictures, monitors as close to bass traps as possible is a viable alternative indeed. In order of importance : 1. Your corner bass traps are fine 2. Rear wall replace the panels with thicker, cover as much surface as you can afford 3. Early reflections side & ceiling: same. The front / ceiling corner has foam as i can see on your picture? This will do nothing below about 250Hz, better do floor to ceiling treatment. Hope it helps.
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