Show Us You Room (Frequency Response)

Need to know, plinker!

meant to post this earlier but every time I went to my studio I had something else on my mind and forgot to grab these... only to find out I had them on a USB stick the whole time. 
this was done with REW.  2 different sets of monitors - Dynaudio BM6A mkii and then Fluid FX80. 1/12 smoothing (I think less resolution smoothing makes everything look better?).  it's been a couple years - that's all I remember right now! oh, and my studio is 19'x25' with 10 ft ceiling base that are vaulted in the center (to 15') .  2x layers of 5/8" sheetrock (overlapping seams) on 2x6 joists (standalone building) .  I had drums (with lots of snare drums) and guitars, and other stuff probably ringing in the room at the time lol.

KH420’s in room with very little acoustic treatment. Room is asymmetric and those dips are SBIR. I’ll probably spend some time doing more treatment in the new year. Despite the dips it actually sounds pretty good.

difficult to understand a graph with no context.  What did you use and how was this measured?  What does the Y axis show here?  and you did not measure below 50hz?

Thanks for posting. What does the Y-axis represent?

Here's my listening position before applying SoundID Reference/Sonarworks:



And here it is after:




Brought that big node at 84Hz down a few dB to a more acceptable range and filled out that weird gully between 10-20kHz. I think I could drop that 84Hz down a bit more with a ceiling cloud but this is a bedroom in a rental with popcorn ceilings. So just about +/- 5dB overall, which I've read is just about as good as one can expect for a room that isn't purpose-built. And it's 12x14 anyway. I should have included an example without the subwoofer, which wasn't pretty. Subs are good.

Another kind of interesting thing - I recently got a nice 32" LG Ergo display that uses this nifty stand that clamps on to the desk and can swivel and swing around. I realized that I could actually engineer a mount for it that would allow me to put it back behind the front plane of my studio monitors so it was interfering less! It took me two days and several trips to the hardware store but looks and feels great. And I measured (this is without SoundID).  Before:



After:



Noticeably cleaned up some decay right above 1k, and some slight improvements across the board down to about 300Hz. I didn't keep the spectrograph screenshots but there was also a bit less comb filtering. Interestingly, half a percent less THD across the board as well.

Now, the question is was it worth it and can I hear the difference? I think so, and I know that I can measure it. And I'll also point out that this is a field where people spend thousands of extra dollars for ~5% improvements all the time, so why not? Ah shit, I think I just talked myself into putting up that ceiling cloud... 

rt60 is more revealing with a proper waterfall graph as then you can see how the room is affecting hold and times of all frequencies,


the larger the rt above 60 the more the problem,


a proper waterfall should really validate your listening experience in the room: more clear areas should be at 60 or lower , less clear 60 and above.

dok it becomes a game of inches, but each improvement benefits you every time you turn on your monitors: go for it .

ragan looking good, have you done a lot of treatment, other than your desk made from was it wood from your grandad's cottage ? , that adds all the good ambiance right there:)

Curve looked very good !

A little peak and trough above 100, like 6 db , is your visual monitor behind the front plane of your 48’s or maybe the low ceiling ? Just curious what you may have done there?