Rew Interpretation and treatment advice?

[busch09]

Hi,

new here. Trying to optimize my setup in my garage. Read the various tutorials but having difficulty interpreting my results.
Here is my setup:
Room probably not optimal.
Eve Audio Sc307 suspended from ceiling with wires. slanted inwards and down so tweeters point at MPL. Not sure if that's a no-no.
Topping D70 DAC
Umik-1

What am I seeing?? Is that bad, ok, good? At what frequencies do I have issues?
Where should I try to apply room treatment to try to fix?
If any could be bothered to provide some advice on my mess, I would much appreciate it.

 

[DanDan]

Not bad at all. The only issue I notice right away is some missing LF between 50-60 Hz. That is a fundamental region so you are missing the root notes of some chords, some bass notes, weak kick drum.

 

[Marc Lombardi]

Yeah I agree with DanDan .... given the room, that is really good! But that 50-60Hz null will be virtually impossible to get rid of with treatment. You can't lift it with EQ because it's from a room resonance mode. And the room is so small there's no way you could put in enough bass traps.

What might help is a subwoofer. Not so much to get response below 50Hz (though it could help with that) but because you could move the sub around the room and see if you can counteract the null. It will be trial and error, but with REW it will be easy to assess. At that point you might end up with a peak somewhere else, but that CAN be pulled down with parametric EQ.

 

[DanDan]

Good suggestion there from Marc. Another one..... you could try those speakers oriented differently. I, and many others used our ADAM S3A's vertical, with the tweeter rotated 90 degrees.

 

[Johnnie]

You should use variable smoothing and five DB increments in graph volume to better understand what your room is doing.

 

[busch09]

Hi Thank you very much for the prompt feedback! So is the dip at 50-60 Hz the area I circled? What about the dips at 230 and 320 Hz?
Let me try an EQ.

Is there an example what real-life great curve from Rew would look like?

 

[DanDan]

Hi Thank you very much for the prompt feedback! So is the dip at 50-60 Hz the area I circled? What about the dips at 230 and 320 Hz?
Let me try an EQ.

Is there an example what real-life great curve from Rew would look like?

The Bruel and Kjaer curves are proven ideals. Don't worry about narrow anomalies on graphs.

 

[cheyneb25]

Hello all! Over the last few months I have dipped my toe into the water and have been trying to get comfortable using REW with my Minidsp 2x4 HD for bass management in my non-dedicated home theater. I have 6 Bic F12 subs spread throughout the room to try and mediate the room modes because it is an oddly shaped room.
So far, I've definitely been able to improve the response after my 1st run of attempts to time-align them w/ delay and inversion. I'm just hoping to get people's thoughts on what they think of the freq. response in the attachments that I included below (pics, .mdat files and REW screencaps) since I'm still not very knowledgeable on what it all may indicate. I'm also very open to any suggestions/tips about sub placement, I'm currently using a hybrid of the Toole and Harman multi-sub techniques.
In the attachments below, the 'first configuration' is what I have been using for a couple months now and I just tried another attempt labelled below as the 'new configuration'. FYI, I did add a little smoothing to the full frequency sweep to make it a lil more readable. I have not yet tried to implement any EQ or a house curve, I'm waiting to do that until after I get everything else fully tweaked.
I turned off the Dynamic EQ in my Marantz amp when I was running my REW sweeps but for some reason it looks like the bass is still getting a significant bump compared to the higher frequencies, not totally sure why. And apologies if the files I posted below here are not up to par, I'm still fairly new to doing it. Looking forward to everybody's input, thanks in advance!