Problems with Mid and High Frequencies

  • Thread starter Thread starter arcadeko
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arcadeko

arcadeko

Illuminatius Overlordious
I have installed several bass traps and have evened out the bass pretty well. I could probably use a couple more bass traps but I am running out of room for them.

I have one entire wall of mirrored closet doors that have no treatment. I could make some hanging panels that are portable.

So this graph shows the pre-treated room (red) and the room after the treatment (blue). the spikes around 100 and 200 and 300 have been reduced by about 10 dB (or 50%). But My mids starting at 1k are out of control.

Can anyone recommend the best way to handle these frequencies between 1k ~ 20k Hz

after-treatment.png
 
I'd be more concerned with impulse response than with frequency response. Spectrum analysis is time blind, so there's nothing telling you if the peaks/dips are from reflections or are inherent to the speakers. Room treatment will do nothing to correct a problem originating in the speakers themselves just as eq doesn't truly fix problems with the room.
 
bouldersoundguy said:
I'd be more concerned with impulse response than with frequency response. Spectrum analysis is time blind, so there's nothing telling you if the peaks/dips are from reflections or are inherent to the speakers. Room treatment will do nothing to correct a problem originating in the speakers themselves just as eq doesn't truly fix problems with the room.
Click to expand...

I really don't have much of an idea of what I am doing... It sounds much clearer in here now - I know that - maybe I should just do some mixes and see how they sound now .

The issues might not be as bad as I thought - smoothed a lot of the bass - red is the pre-treatment - green is the current.
This is done with 1/12th octave smoothing.

compared-smoothing.png


Impulse response post-treatment
impulse-response.png
 
Have you finished all of your planned treatments? Did you get one of the recommended mics for testing yet? If not, I would not even try to form a judgement. You have taken steps that are proven to make a great deal of difference in improving the sound of your room. It already sounds tighter to you. That is a good start.
 
I should have suggested looking at the Waterfall tab. It shows the response by time and frequency. That should reveal any particular frequency that is bouncing around the room. Turning on smoothing helped a lot.
 
I think I am pretty good - I just installed the final trap in my early reflection point - the opposite reflection point on the left has a cloth fabric blind - I could try to build another trap and hang it in the window but I am kind of ready to move on :p I will post pictures of the final results and positions.

I ran one more impulse comparison after hanging this last one and it looks considerably better (to me anyway) - I am now under 200 ms as opposed to 400 before treatment. Waterfall also drops much faster but I am not going to bother posting those.

Thanks everyone for your help with this. I will post real studio pics in the chronology thread :D

Before:
impulse-pre.png

After:
impulse-post.png
 
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