REW and EQ.
Keith
Keith
Last edited:
I think OP should start to focus on the whole area from 100 Hz and upwards
and to solve that he needs as many as possible broadband absorbers that are at least 10 cm thick with air gaps, and even better 15 to 20 cm thick panels.
Some points to make.
1. Typical rooms have a rising noise floor (EDIT: rising noise floor in the bass region) in the low frequency region. Typical room noise is usually about 35-40dB. Yours seems to be below 25dB which is suspiciously low - it indicates to me that your curve has not been adjusted with an SPL meter.
I have done a sweep with louder volume (+7dB louder). Louder than that and I will get a clipping error from REW.@Skylinestar I am much more concern what a hell is happening in highs there?
Great now do the PEQ for room mood as explained put it in the chain and do measurement again. It doesn't do only the first bump but also it's first two harmonics. And then you have room decay to work on it. Something is definitely happening in highs either it's series problem with room which you will have to correct with accustic treatment or you are siting to close to the wall behind you. If window glas is ringing put thick curtains on.I have done a sweep with louder volume (+7dB louder). Louder than that and I will get a clipping error from REW.
View attachment 423488
I have done a sweep with louder volume (+7dB louder). Louder than that and I will get a clipping error from REW.
A million thanks for your work.So you need to go shopping.
To be honest, this pattern of "OK RT60 down to 600Hz and then horrible below that" is a bit weird. It makes me think that you already have acoustic treatment that is creating this spectral distortion. Do you?
Modex is a commercial VPR trap... A DIY job that replicated one exactly would be fairly expensive but doing an approximation with more affordable materials would probably only be $100-200 max, maybe more for a really big one.A million thanks for your work.
Regarding shopping, it goes back to the original question. How thick of a bass trap am I expecting to have? My local hardware stores sell Rockwool Safe n Silent (60kg/80kg/100kg /m3, 6 pieces per pack). Do I need 12" (6 pieces) as a block of bass trap?
This Modex plate seems to be suitable but it cost a bomb for me. Is this the price to pay for treatment?
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I do have a few panels scattered in my room. Each panel is about 60x120x6cm. The panels barely cover 20% of the wall surface. Instead of sticking it to the wall, I just rest them on the floor, standing. I also have curtains at the left and right side of the mlp.
Not my photo but this is how the panel looks like:
View attachment 423854
It is a hallway that leads to other bedrooms. Currently, the only furniture there is a tv console and an IKEA Poang style chair. I have no intention to buy more furniture or to put more items in that space. I like the minimalistic empty look.Is your room empty for a reason?
To generate the average, is it correct to use the "vector average" button in the All SPL tab?If you don't know how to average five sweeps...
To generate the average, is it correct to use the "vector average" button in the All SPL tab?
Any plans to add content on your website?This thread is sad and has become greatly misleading. Focusing wrongly on RTx, something that doesn't exist in this type of room. Recommending DSP for something DSP can't address. Plus wrong information about needed thickness of absorption panels to reach a certain frequency. So much for a science based forum I guess.
My tip: Contactt someone who actually who understands acoustics. This is simply a mess with incorrect information.