I'd like to read a primer on HT enthusiasts using energy time curve (ETC) charts/graphs for their acoustic analysis.
Not some REW help files or theory in books/online either, I've read all those and .... sorta get it.
What I'm looking for is a thread that details some peoples journey thru the acoustic rabbit hole, jumping in, getting really small once realizing how much info/data there is.
Then, growing and using energy time curve charts/graphs for their acoustic analysis.
The "final step".
I searched but can't find a thread here.
I've taken lots of measurements, freq/H20, for my IB sub, but for some reason I've steered away from energy time curve charts for my side wall/ceiling acoustic treatments.
I'm willing to be "Alice", who will lead me thru the acoustic energy time curve (ETC) charts/graphs rabbit hole?
Show me what you done, how you've analyzed your room acoustics, and made changes until you've said "I'm done".
My (4) LH and (2) RH side wall panels are easily removable, and while the (2) ceiling clouds are sorta big/bulky hanging there, I could cover their facing downside with kraft paper to negate their effects for measurements.
I'm thinking this would help others also as I go thru this acoustic learning journey.....http://www.santafevisions.com/csf/ht...considerations
[edit Feb-28-2012] Plan to re-boot this thread March/April 2012:
Come spring, when I re-do my 130" screen due to humidity induced warping of the screen
, , I will totally remove all my existing side wall/ceiling panels and start from baseline of no treatments on the room
(besides my corner superchunks, which all have front facing reflective treatment on them)
I also will do the following:
-Pure reflective room baseline
-baseline of "the mirror tricK", as I did, with side wall 2" panels + 2" air gap
-Pure ETC approach and using 4" panels + 4" air gap at specific locations verified by ETC
-compare and make objective and subjective assessment
All above is being done utilizing porous absorbers.
Come 2014/2015, when it's new PJ time (4k +LED light engine), and I go AT front screen - with DIY L/C/R main speakers in a baffle wall, then the whole HT acoustic treatment strategy will change; diffusion, membrane absorbers, etc....but that's topic for a different thread.