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jrkaiser
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 Posted: Mon May 25, 2009 7:40 pm Post subject: Room EQ Wizard |
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Before I hang any of these, I need to do a room analysis...
I found a great piece of software, http://www.hometheatershack.com/roomeq/
Combined with my trusty Radio Shack Sound Level Meter and the Behringer ECM8000 Reference Mic I should be able to get a good idea as to whether or not my efforts paid off.
JK |
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georgethetech
The Gates of Troy
Joined: 18 Mar 2007
Posts: 1878
Location: Topanga, CA
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| Posted: Tue May 26, 2009 12:54 am Post subject: |
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Nice software find, I am looking forward to trying it myself. I have a Peavey omni mic that is pretty darn flat. Not scientific, but gets you close.
Nice work on the panels, job well done! Wonder how their performance rivals those from realtraps.com, which I installed recently for a client and was highly impressed with their build quality and peformance (at a price).
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George Whittam
GeorgeThe.Tech
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jrkaiser
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| Posted: Tue May 26, 2009 4:33 am Post subject: |
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George, I'm just starting to learn how to use it. I want to get a good idea of the room and whether or not the time and effort make any difference.
These traps where from Joel Dubay's design at ReadyAcoustics.com.
http://www.basstraps.net/DIY-BASS-TRAPS-MADE-EASY.pdf
You mentioned RealTraps.com. Ethan Winer also has a lot of information here...
http://www.ethanwiner.com/acoustics.html
In my research it seems that both Ethan and Joel do a great job of providing a lot of information to the community. I've been very impressed with both.
I'll post results from the software I found and see if we will have any major differences after the treatment.
Justin |
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Living Culture
Contributore Level V
Joined: 14 Oct 2007
Posts: 189
Location: Taipei
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| Posted: Tue May 26, 2009 8:21 am Post subject: |
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Are the latest photos of the finished room? I'm just wondering about basstraps in the corners, which look untreated at the moment, or are the ones in the photos going there?
Another place that requires some treatment is the angle where the wall behind the monitors meets the ceiling. This is just for accurate monitoring as a lot of build-up occurs there. I can't find a link to picture of what I mean now, seems to be bookmarked in the wrong place. But here is an interesting article about placement of traps.
[url]
http://www.acousticsciences.com/articles/iar89.htm[/url]
I'm interested to know, what are the dimensions of your vocal iso booth.
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jrkaiser
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| Posted: Tue May 26, 2009 9:52 am Post subject: |
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Nothing has been treated yet. I've got 8 on stands, and 12 to be hung as needed... I'm going to do a room analysis first by taking the traps and panels out... then another after they are in and tweak placement at that time.
I'll put the analysis online for you to see.
JK |
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jrkaiser
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| Posted: Tue May 26, 2009 9:53 am Post subject: |
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| The vocal booth is 4x6... I should have researched it more before I built it 2 1/2 years ago... |
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jrkaiser
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| Posted: Fri May 29, 2009 8:46 pm Post subject: Room Analysis... |
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All traps and gobos are done... I'll have more than I need... treatment is underway. The gobos are in place effectively cutting the room in half. Still need to put bass traps and cloud in position.
The room analysis was done with Room EQ Wizard from www.hometheatershack.com and a Behringer ECM8000, along with a Radio Shack SPL Meter.
It looks like I've got a couple of room mode problems in the under 100 hz range and a couple of things that will need attention at 500 and 600 hz.
BEFORE ANY ADDITIONAL TREATMENT 15-200
BEFORE ANY ADDITIONAL TREATMENT 15-200
BEFORE ANY ADDITIONAL TREATMENT 15-1500
AFTER GOBO PLACEMENT 15-200
AFTER GOBO PLACEMENT 15-200
AFTER GOBO PLACEMENT 15-1500
ROOM ANALYSIS MIC IN POSITION
CUTTING THE ROOM IN HALF WITH GOBOS
BEHIND MIXING POSITION
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Frank F
Fat, Old, and Sassy
Joined: 10 Nov 2004
Posts: 4421
Location: Park City, Utah
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| Posted: Fri May 29, 2009 9:31 pm Post subject: |
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So the question of the day is: Are you happy with the sound after all your hard work?
F2
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jrkaiser
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| Posted: Sat May 30, 2009 11:41 am Post subject: |
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Frank, Missed your call last night.
I haven't had a chance to really do any voicing in here since I brought the Gobo's in. I'll be hanging the panels this week and hope to hang the cloud next weekend. By that time I'll be able to let you know. I do notice a different sonic quality though and the Room Analysis looks good so far with no major problems... I'll let you know.
Justin |
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jrkaiser
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| Posted: Sun Jun 07, 2009 10:09 pm Post subject: Nearing Final Treatment |
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We had a chance to hang the cloud yesterday, hung the Panels about 4" off the wall as well... Unfortunately due to the layout of the room using these specifically as Bass Traps will not work, so I'll have to create 3 or 4 simple Tube Traps...
For those that are following the adventure, thanks again to Frank and Greg for the help and insight...
If you have any other thoughts, I'm all ears...
Full size photos and complete documentation on this project from start to finish is available at the following location...
http://www.flickr.com/photos/jrkaiser/sets/72157617280297733/
I should be back to voicing in this studio, after some final cleanup, next week. I'm not sure what it will sound like except for the fact that the reverb when clapping is a lot less, and the feel and sound seems to be a bit more intimate... I've learned quite a bit doing this project and hope it helps you...
BEFORE/AFTER COMPARISON - BEFORE IS RED - AFTER IS PURPLE
WATERFALL AND DECAY
FINAL TREATMENT
THE CLOUD IS UP - MAIN MIXING LOCATION
BEHIND MAIN MIXING LOCATION - CLOSET ON LEFT - ISO BOOTH ON RIGHT
CUTTING THE ROOM IN HALF WITH THE GOBOS
ENTERING STUDIO FROM OUTSIDE
LOOKING INTO WHERE THE STUDIO IS - IT'S UGLY AND NEED TO FINISH THIS
OUTSIDE ON THE RIGHT - GARAGE ON THE LEFT
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Frank F
Fat, Old, and Sassy
Joined: 10 Nov 2004
Posts: 4421
Location: Park City, Utah
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| Posted: Sun Jun 07, 2009 11:12 pm Post subject: |
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Justin I noticed the cloud is about 24" away from the wall at the furthest point. This distance is too far to be effective... You may need to cut down the size of the cloud to make it fit better.
Also, you have a healthy spike (lower drop point) between 400 and 600 Hz, This is not wonderful. Consider moving some things around to keep a flat(er) range across the spectrum.
This band width ratio is where a Helmholtz Resonator or poly's may do the trick. Using some "room flowers" (my personal patent pending - hahaha - not) will adjust the spatial ratio in the room too. Tube traps may be over kill unless you have a specific spot which needs to be adjusted or attenuated.
From the pictures shown, you have a plethora of "traps" available. Widen the gap between a few of the Gobo's and allow some "air" to move in and around those this concept will help adjust the frequency spectrum in the room.
Looking sweet and I would bet sounding sweet too.
Frank F
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jrkaiser
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| Posted: Mon Jun 08, 2009 9:50 am Post subject: |
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| Quote: | | Justin I noticed the cloud is about 24" away from the wall at the furthest point. This distance is too far to be effective... |
I dread taking it down and modifying it... getting it up was a bear... what if I took some rolls of insulation and filled some large pillowcases and stuffed them behind the cloud? Would that help at all? I read your PM about that again after the fact... it didn't sink it at all before.
[img]Also, you have a healthy spike (lower drop point) between 400 and 600 Hz, This is not wonderful. Consider moving some things around to keep a flat(er) range across the spectrum.[/img]
It seemed to smooth things out quite a bit in the 50-200 range, it killed off a major spike at around 680, but created a couple of other problems. I'll need to address that with the resonators or the flowers... I am, however, impressed with the waterfalls... there don't seem to be any major modal problems and the decay dropped significantly... I do have to deal with the decay around 50 though
[img]This band width ratio is where a Helmholtz Resonator or poly's may do the trick. Using some "room flowers" (my personal patent pending - hahaha - not) will adjust the spatial ratio in the room too. Tube traps may be over kill unless you have a specific spot which needs to be adjusted or attenuated.[/img]
I'll move some things around... do you think a couple of tubes would help that problem around 50? I still don't have much in a few corners of the room that were not treatable with the current design...
| Quote: | | Looking sweet and I would bet sounding sweet too. |
I've had some nice comments about it from clients... it certainly is a lot more intimate of a space and I can tell a significant difference in sound. Final tweaking is underway... majority of the project is done... |
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jrkaiser
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| Posted: Sun Jun 14, 2009 6:25 pm Post subject: Audio Samples |
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I’m getting the room put back together after getting the cloud up... Still have some final tuning to do... Here are some audio samples of 4 different mics..
Cascade Fathead 2 Ribbon – Don’t like the sound of the mic and sending it back.
Sennheiser 415 Shotgun
Mojave Audio MA-201
Lauten Audio Clarion
2 segments of audio per block (8-10 inches away and 2-3 inches away proximity) and 3 blocks of audio 1. Dry and flat all the way through, 2. Soft knee compression and normalize to 90. 3. Some multi-band processing that squashes the crap out of the audio from my buddy Roy.
http://www.creativeidentitygroup.com/audio/acousticsproject/MicComparisons-Fathead-415-ma201-clarion.mp3 |
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Lance Blair
M&M
Joined: 03 Jun 2007
Posts: 2281
Location: Atlanta
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| Posted: Mon Jun 15, 2009 4:33 pm Post subject: |
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Like the Clarion the best. The Fathead is rubbish (for your voice) the 415 is bland and the Mojave made me want to tear my ears out and take a long bath. Nasty nasty microphone. I'll take a MXL 2003 over that anyday. Makes TLM 103 sound like plush velvety pillows.
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and now, http://lanceblairvo.com the blog is there now too! |
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georgethetech
The Gates of Troy
Joined: 18 Mar 2007
Posts: 1878
Location: Topanga, CA
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| Posted: Mon Jun 15, 2009 5:10 pm Post subject: |
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I have some files I recorded at Marshall Electronics a few weeks ago, including the MXL2003. I will post them SOMEDAY... been so busy!
_________________
If it sounds good, it is good.
George Whittam
GeorgeThe.Tech
424-226-8528
VOBS.TV Co-host
TheProAudioSuite.com Co-host
TriBooth.com Co-founder |
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