I've been thinking to make a separate thread on the DIY construction methods of hang-able acoustic panels, that can be located specifically only where needed.
Also moveable as your speaker type/location changes, your treatment needs may change.
Currently none exist that give a really good start-finish, I've searched AVS forum.
Fabric Frames - GPowers Thread , Another Fabric Frame Thread - Canvas Stretcher Bars
Just these for Fabric frames, which are integrated as part of the wall itself, not hanging and specific locatable.
(these are great threads btw for those whole wall coverage methods)
In my viewpoint, the Acoustical Treatments Master Thread is more for the theory, science, and practical application for acoustics of your particular room situation/issue, not the DIY construction methods, that will clutter it too much.
This thread purpose is NOT what your rooms acoustic needs are, rather once you study, plan, and develop your rooms acoustic needs, how to go about building it yourself.
 since making this thread some specific acoustic issues have been discussed and addressed, however there are other more suitable threads for the theory, think of this as the application thread.
So, here it is, a dedicated thread for DIY construction methods of hang-able acoustic panels, to start I plan on sharing what I've done:
-DIY side wall absorption panels construction and hanging, http://www.avsforum.com/avs-vb/showthread.php?p=19947559#post19947559
-DIY ceiling absorption panels panels construction and hanging
http://www.avsforum.com/avs-vb/showthread.php?p=19987283#post19987283 and http://www.avsforum.com/avs-vb/showthread.php?p=20074007#post20074007
-Here is removable lower tri-corner superchunk bass trap made with 1/2-13 thd rod and OC705, from post #40 http://www.avsforum.com/avs-vb/showthread.php?p=19993984#post19993984
and Upper tri-corner bass traps (since I made these it's been proven via gas flow resistivity its best for deep traps like these to use pink fluffy)
Eric helped with his pink fluffy version of my movable corner bass traps
Discussion related to corner bass traps; gas flow resistivity, why cover them to reflect mid-high's, etc
others in this thread:
-smokarz built his own side wall 2' x 4' panels, post #36 here http://www.avsforum.com/avs-vb/showthread.php?p=19993492#post19993492
-localhost127 built his own side wall 4" thick 2' x 4' panels with exposed sides for more absorption , post # 86 here http://www.avsforum.com/avs-vb/showthread.php?p=20271296#post20271296
There are already "fixed" bass trap threads, here are links to them.
Show us your custom made corner bass traps (pics)
(btw, as of 2/5/0-11 pepar updated his pict links, I need chinaclipper and pred02 to do same )
Gearslutz.com, here is a link to their "How I built my bass (broadband) traps..." sticky, over 31 pages of info!
I added my own twist to building corner superchunk with "green" material, some might like a different approach.
I'd like others who make DIY hang-able acoustic panels, whether absorption, diffusion, reflection, etc. to also feel free to add your construction techniques/methods there.
>>We need to learn from you!
[edit Feb 2, 2011]
placeholder for those already done DIY hang-able acoustic panels-pm me your details and I'll post link here
I have this general suggestion for those wanting to learn about acoustics:
A) read this Acoustics/Treatment Reference Guide , via gearslutz, its a easy read in layman terms, starts you off with basics and good foundation with practical discussion. Studio acoustics and Home Theater acoustics.
From that, simple/straight forward advice via Jens Eklund:
1. Learn how to make measurements: REW - Room EQ Wizard Home Page
Don’t do anything without measurements.
2. Define your MLP (Master listening position). Confirm with measurements.
3. Identify and treat your modal and SBIR - Speaker Boundary Interference Response related issues and educate yourself about different bass-absorbing techniques.
Other info: SBIR by Bryan Pape
4. Treat areas that otherwise creates early reflections.
5. If the room is big enough, add diffusers
Always base your decisions regarding different treatment, on measurements. Avoid thin porous only absorbers (including wall to wall –carpet, drapes etc.) unless a measurement indicates the need for it.
B) Knowing that for “best” audio/sound in a listening room, these parameters are tackled in prioritized order:
1. Speaker location, 2. Listener position, 3. Acoustic treatments, 4. Electronic correction.
Understand the small room acoustic model you will follow.
Looking at this link, everyone can see visually the various small room models, it's 7 pages from the book "Acoustics and Psychoacoustics Applied"
C) If you have desire for more knowledge:
-read one of many books out there, a great 1st book is "Master Handbook of Acoustics" by F. Alton Everest, a perfect follow-up book is "Sound Reproduction: The Acoustics and Psychoacoustics of Loudspeakers and Rooms" by Floyd Toole.
-shameless plug for Ethan Winers book also, "The Audio Expert".
-study Ethan Winers site, http://www.ethanwiner.com/acoustics.html
-Become familiar with the different small room acoustic models for home listening spaces
-This is also a 101 read on Room Acoustics, http://www.crutchfield.com/learn/learningcenter/home/speakers_roomacoustics.html
-SAE Home Acoustics info site has many definitions and explanations http://www.sae.edu/reference_material/audio/pages/fullindex.htm
-There are many other sites on the web, like
........One of the first ones, StudioTips small room acoustics forum http://forum.studiotips.com/index.php,
........Acoustical measurements defined Rives audio http://www.positive-feedback.com/Issue12/rives2.htm,
........RPG Acoustics Library papers http://www.rpginc.com/news/library.htm, etc.
-Be careful of info overload all at once
D) Measurement info/threads:
-online downloadable file with the Sound System Engineering chapter 6 on measurements http://www.focalpress.com/uploadedFiles/Books/Book_Media/Audio/9780240808307.pdf
-Get the hardware side of REW down quickly, this thread by member omegaslast dummy's guide on setting up REW and his blog http://polaraudio.blogspot.com/2012/01/calibration.html easy 101 read with pictures to walk you thru the mechanical of set-up and taking measurements
-Highly recommend Nyal Mellor's site, http://www.acousticfrontiers.com/Aco...surements.html , and a very detailed/helpful white paper http://blog.acousticfrontiers.com/st...ist.%20Rms.pdf
-Room Measurement & Treatment by "fotto" (Floyd)
-Why just using 1" thick porous absorber treatment is "wrong" http://www.avsforum.com/t/1369498/early-reflection-panel-thickness
-http://www.avsforum.com/t/1316623/diy-custom-printed-movie-poster-acoustic-panels-cheap/60#post_20147783 DIY Custom-Printed Movie Poster Acoustic Panels
-first reflection software: http://www.avsforum.com/t/822273/free-software-to-help-determine-your-first-reflection-points/240#post_22619555
-a while back I downloaded this Measurement/calibration sequence from Dennis Erskine.
Edited by mtbdudex - 2/22/14 at 4:35am