Studio In Mumbai

[rashdriver_111]

Hey Friends!
I am Simran Arora. I am in the process of making my studio in Mumbai,India. So far things which ive done are as following
1)Flushmounted (K+H410s)
2)Overhead clouds Done/Back Ceiling stuffed with 10 inches of rockwool

3)Side splayed with the help of modular slats tuned to 74Hz (Using Slat calculation sheet floating online)

4)6 Inches of absorption in the back wall.

Attached are the reading what ive got so far.
Let me know whats your thought on this

Love Peace and Happiness!

Simran

[audiothings]

Hello Simran,

It is good and rare to see a fellow Indian on board.

As for your room, it seems to me that you have lots of mid and high frequency absorption going on and not enough low end control. Your room is likely to sound pretty boomy, as your graphs indicate. How well your slats really worked can only be known if you have before/after measurements...

Why did you choose 74 Hz for your slat absorbers? (just curious...)

[ciro]

Looks like a dead room (in the mids and highs), but , even RT 60 not being so detailed (vertical axis is better at 0.1 s steps), waterfalls shows ringing around 45, 60 and 80 hz that looks like an untreated room (in the lows).

Frequency response (no smoothing?) looks like +/-7 db except the null at 450, very good. But room clearly needs treatment (corners) to control ringing principally below 100hz.

Ciro

[rashdriver_111]

yeah.Audibly theres not much of a boom problem happening. Infact i presume killing that bass would make the room more lifeless and thin.The ringing problem(as per the graphs!!) at the subs strangely isnt masking anything or keeping me off the judgement in the mixes.Only the energy in that area is more without long sustains audibly(10" woofers+ super internal amp as i assume::kindly correct me). 145Hz ive observed is a culprit as it tends to ring very noticeably

Over and all the rooms been translating good.

For Hi-Freq/Mid Freq treatment is done by damping almost the entire room harshly so as to avoid flutters and combing problems. Cant really have a good LF control using QRDs aswell reason being their placement and requirement of adequate distance from the listeners position.

The Slats are tuned to 74Hz since i was getting a good theoretical absorption in the area of 111Hz to some higher limit.

Yes i agree the room is quite dead but it still sounds good workable in the practical listening experience.

To add more there is no -6dB electronic shelving/controlling done to the systems to compensate for the baffelstep/wall loading.

Let me know if any of you guys help me fine tune the room. Good Helmholtz shared his knowledge and so did Hippocrates !! Or else there would have been issues around and all over!

Love u folks!

Simran

[Glenn Kuras]

Infact i presume killing that bass would make the room more lifeless and thin.

If you get the low end ringing under control it will become much tighter and clearer, not lifeless and thin. I would think those "tuned" traps are not doing much. Either the calculator is wrong, you built them wrong or they really do not work.

[rashdriver_111]

Cool! I shalll keep that in mind and work accordingly.
Now heres one more thing which i did for calculating the resonant frequency of my slats.

I introduced a mic inside the slot and tried to touch the gain before feedback point with just one of the speakers on.

It resonated perfectly at 74Hz.

Similarly ive kept 4 box type helmholtz resonators underneath the monitors on nitrile rubber. They are tuned to 66Hz. I used the same mic method to figure out their resonating freq.

A kick drum would sound real tight when played back from the systems with the HH . The moment i would choke the ports, i would have hell lot of ringing at 66.
The spectrogram would cross more than 800ms @ 66Hz without the HH.
With the HH it would touch barely 390ms as i remember.

After putting the slat resonators i have just noticed a change of just a dB or two in the low end area.

The slots are 2" wide . While the music is on (say infected mushrooms since they are bass heavy) when i insert my ear inside the slot (just getting too practical :P ) i can literally feel the subs and the slot resonating inside.

Need more feedbacks. Would love if you make fun of this 20year old chap but at the same time enlighten me with what ever little u guys can

[rashdriver_111]

for example..

[rashdriver_111]

and yes should i also consider multiple tube type absorbers all over the place?

[rashdriver_111]

anyone?