I have a similar thread next to yours and am a relative novice
with acoustics but i can have a crack at answering some of your questions to get the ball
rolling and someone more knowledgable can then correct me if I've got it wrong.
A full length 6" deep corner trap should be more effective than a super chunk if
you also use a 4" deep by 12" wide column behind it, but not touching it (i.e. cut a 4"
1200mm x 600mm slab in 2 -length ways, and put one on top of the other). The top panel
may require a base support if using 45kg/m3 density.
I think if you are
intending to use insulation slabs covered in fabric as bass traps then these act as
broadband absorbers and will reduce the high end along with everything else, helping to
reduce room problem frequencies. If you were to cover a lot of the rooms surface with
absorption material it will greatly reduce reflections. In a small room i don't think it
is possible to have too much bass trapping and if you really need some reflections i
suppose you could use foil backed slabs facing the foil into the room. Don't do this at
the mixing area of the room though as it is best to have a reflection free zone here.
Remember that where ever you don't have absorption there will be reflections anyway
though. It depends on how much absorption you intend to add and what your recording needs
are (early reflections needed ?) and how comfortable you are mixing in a dead room (if you
cover a lot of the room).
What is the room like - Have you identified
problem frequency areas ? (the sos bass staircase can help here or software if your good
Where in the room you are mixing ?
Does the roof
slope from the right side wall (wall parallel with bottom of velux window) to the left
(where joist is) ?
music for the downtrodden
Edited by Helmutcrab (10/07/12 02:12 PM)