John Sayers' Design Forum

John Sayers' Recording Studio Design Forum

A World of Experience
Click Here for Information on John's Services
It is currently Tue Oct 20, 2020 4:47 pm

All times are UTC + 10 hours

Post new topic Reply to topic  [ 1 post ] 
Author Message
PostPosted: Wed Mar 13, 2019 5:51 am 

Joined: Sun Jan 22, 2017 5:27 am
Posts: 1
Location: France
Thanks for your wonderful forum - very inspiring.

I’ve nearly finished a small control room that I’d like to use to mix 5.1 for TV.
The dimensions are L = 5.4m x W 3.65m x H 2.5m, the rear wall leans in by around 15° and there are wooden beams on the ceiling.
I’ve added 16 X 4 cm rockwall absorption panels and 2 chunk inspired corner traps (approx 9m^2 of absorption surface area.
Here here are some photos of the room and some images from REW. I sent a sweep through the center channel speaker (no LFE / SUB) and placed the mic at the listening position.



I’m not totally sure where to go from here, if I’m interpreting the REW graphics correctly, the RT60 looks smooth and the waterfall seems to show fairly even decay times over the frequency range but the spectrum gets a bit «lumpy » around 225 Hz ( Schroeder frequency ?) and below and I’m wondering how to attenuate / correct it.
I’m also a little concerned by the slight dip around 1k to 3k region but I think this might come from the speakers not the room. (KRK Rokit RP8). I mix at between 75dBC and around 85dBC.
Also I have plans to add more absorption to the rear of the room and I’m playing with the idea of hanging 3 panels over the mix / listening position.
Should I be looking at making helmholz absorption panels tuned to 230 Hz ? and if so how big should they be to absorb around 4 to 6 dB ?

What else could I do to improve the room ?

Thanks for any suggestions.

You do not have the required permissions to view the files attached to this post.

Report this post
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 1 post ] 

All times are UTC + 10 hours

Who is online

Users browsing this forum: Google [Bot] and 13 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB® Forum Software © phpBB Group