The No.1 Website for Pro Audio
 Search This Thread  Search This Forum  Search Reviews  Search Gear Database  Search Gear for sale  Search Gearslutz Go Advanced
simple question about bass response Special Ef­fects Plugins
Old 1 week ago
  #1
Gear Maniac
 

simple question about bass response

Hi
Sorry if this sounds naive.
I have a medium sized room 4.2 x 3.98 x 2.83 approx with a decent amount of bass trapping difussors.
However bass response is still all over the place .
40hz tone played through my speakers almost disappears in one particular part of the room where as a few steps a way at the back of the room it is very pronounced.
My question firstly is this.
Where the bass is most pronounced is it because this is the most
phase coherent part of the room or is it possible that the bass is being exaggerated here.
As mentioned a few steps away the bass almost completely disappears
.
Obviously i need to sort this out and its making mixing the low bass very difficult
Thanks for any guidance
David
Old 1 week ago
  #2
Lives for gear
 
akebrake's Avatar
 

Quote:
Originally Posted by davidmoore View Post
...
I have a medium sized room 4.2 x 3.98 x 2.83 approx with a decent amount of bass trapping difussors.
However bass response is still all over the place ...
Your "bass trapping diffusors" will not do much for 40Hz unfortunately...
40Hz is very difficult to trap and you have plenty of it because your room have similar dimensions both Length and Width.
E.g strong Room Resonant Modes. (Standing waves)

That means mid room have two nulls (low SPL) at ≈40Hz if you move Front- Back or Left-Right.

To illustrate try this mode calculator. Just insert room dimensions and check where the nulls (white areas) and high SPL areas are positioned.

Is DRC like SonarWorks or Dirac Live an option?

Cheers
Attached Thumbnails
simple question about bass response-hunecke.jpg  
Old 1 week ago
  #4
Gear Maniac
 

Quote:
Originally Posted by akebrake View Post
Your "bass trapping diffusors" will not do much for 40Hz unfortunately...
40Hz is very difficult to trap and you have plenty of it because your room have similar dimensions both Length and Width.
E.g strong Room Resonant Modes. (Standing waves)

That means mid room have two nulls (low SPL) at ≈40Hz if you move Front- Back or Left-Right.

To illustrate try this mode calculator. Just insert room dimensions and check where the nulls (white areas) and high SPL areas are positioned.

Is DRC like SonarWorks or Dirac Live an option?

Cheers
Yes thats true
There is a point where 40hz completely disappears .
There also another null and then a huge build of of bass in the opposite corner !
Old 1 week ago
  #5
Gear Addict
If you’re mixing, it doesn’t matter what the bass response is like anywhere other than in the listening area. Adjust the speaker positioning and listening position and you should be able to find a position where 40Hz is a lot more balanced. You may get new problems though!
Post Reply

Welcome to the Gearslutz Pro Audio Community!

Registration benefits include:
  • The ability to reply to and create new discussions
  • Access to members-only giveaways & competitions
  • Interact with VIP industry experts in our guest Q&As
  • Access to members-only sub forum discussions
  • Access to members-only Chat Room
  • Get INSTANT ACCESS to the world's best private pro audio Classifieds for only USD $20/year
  • Promote your eBay auctions and Reverb.com listings for free
  • Remove this message!
You need an account to post a reply. Create a username and password below and an account will be created and your post entered.


 
 
Slide to join now Processing…
Thread Tools
Search this Thread
Search this Thread:

Advanced Search
Similar Threads
Thread
Thread Starter / Forum
Replies
fealow / Studio building / acoustics
36
Rob Coates / Studio building / acoustics
16
JohnnyLongarms / Electronic Music Instruments and Electronic Music Production
13

Forum Jump
Forum Jump