Musicians Collaboration Studio
How To => Studio Design Tips => Topic started by: CosmicDolphin on May 10, 2008, 11:16:34 AM
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I found this whilst reading some article on acoustic treatment.
http://www.soundonsound.com/sos/dec07/articles/acousticsaudio.htm
Listen to the MP3 on headphones and the notes sound very even......now listen to it over your monitors and see which notes suddenly jump out or go quiet....that's the sound waves bouncing around your room and either cancelling each other out or reinforcing each other.
On my system the 19th , 20th and 21st notes seem to be the problem area...I'll have to work out which frequency they relate to so I can look into treating it.
Give it a try and let us know what you find in your own studio......oh and be careful some of the notes are very deep, and my windows were shaking >:D
CD
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Weeehehehehe... man, my setup sucks big time :P I had a lot of issues round the middle, 12, 13, 16, 17, 18, 19, 20somethings, all very loud. :P None overly quiet though. But if you saw the shape of my room, you'd see why I have massive issues ::)
Dan.
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Weeehehehehe... man, my setup sucks big time :P I had a lot of issues round the middle, 12, 13, 16, 17, 18, 19, 20somethings, all very loud. :P None overly quiet though. But if you saw the shape of my room, you'd see why I have massive issues ::)
Dan.
I had one note that was really quiet...it's quite surprising when you listen ot it on headphones. My room is just the end of my garage with no acoustic treatment.
CD
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Well, check out my last post in this thread http://www.musicianscollaboration.com/forum/index.php?topic=1138.0 I drew a rough diagram of my room shape. It explains why I would have a few issues :P
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Well, check out my last post in this thread http://www.musicianscollaboration.com/forum/index.php?topic=1138.0 I drew a rough diagram of my room shape. It explains why I would have a few issues :P
Yeah...that's not good !
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Don't I know it... but I don't really have a huge deal of choice in the matter, that is my bedroom, and the only place I can stick my studio at the moment, so for now, I'll have to mix with cans (not such a bad thing, as I don't really have monitors) or just stay away from mixing, also probably not such a bad thing :P
Dan.
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I've got a little variance here on a few of the notes, but I already pretty much know where my major issues are. I'm actually breaking a FEW rules here in that I'm in a corner AND I use a sub. I have a somewhat treated room with some traps that I got from ATS Acoustics (great company for them BTW, realatively inexpensive and as effective as anything else made from these materials, I'd imagine - I think for a corner and 4 flat wall traps, all 2' x 4' by 2" deep, except the corner one, which is 4" deep, they were about $350 or so). Anyway, I used the tests from Ethan Winer's real traps site and between listening and running them back through a mic at the listening position and recording into a track in Sonar, I am able to hear and see where some of my low frequency issues are.
Here's the "graph" from within Sonar, showing the frequency "map" if you will - this covers from, I think, 20hz -> 300hz. You can see the bump in there around 125hz, if I remember right and some weakness below that, in the 40-60hz range,, again, if I remember right. But overall, considering how bad it was prior to treatment, this is great - and things sound good in here to me. Also, the maximum difference is somewhere around 8db, if I remember, and in most places is around 3-5db. Not perfect, but at least not a complete wreck. I stopped looking at it and just started playing again ::)
(http://www.blades85.com/RoomResponse.jpg)
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Mine starts getting slightly louder at the C# around 16 seconds in via my monitors. Not quite so noticeable on my headphones. Interesting.
Is the sound pressure supposed to be constant across this whole MP3? Has it already been 'normalized' for that?
CD, I'd suggest changing the title of the post to something like "Improving Room Acoustics" or something like that! :-)
Paul
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Cool test. 8) I seem to loose a bit in the low-mid range. Everything else seems pretty even. I'll have to watch my low mids as I may compensate when mixing. Add too much in the mix. ???
Dave
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Mine starts getting slightly louder at the C# around 16 seconds in via my monitors. Not quite so noticeable on my headphones. Interesting.
Is the sound pressure supposed to be constant across this whole MP3? Has it already been 'normalized' for that?
CD, I'd suggest changing the title of the post to something like "Improving Room Acoustics" or something like that! :-)
Paul
Sound level should be the same all the way across.
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Wow! My space must suck. It got very loud in the middle. I'm in a 20 x 20 space but my computer and monitors are in a corner and I really can't move it anywhere else.
Hmm...
AJ
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Wow! My space must suck. It got very loud in the middle. I'm in a 20 x 20 space but my computer and monitors are in a corner and I really can't move it anywhere else.
Hmm...
AJ
You need to treat the room , like most of us. The lound notes will be standing waves building up. As a cheap test you can try putting rolled up duvets in the corners , and hanging them off the walls, see if you can improve it.
Mine starts getting slightly louder at the C# around 16 seconds in via my monitors. Not quite so noticeable on my headphones. Interesting.
Is the sound pressure supposed to be constant across this whole MP3? Has it already been 'normalized' for that?
CD, I'd suggest changing the title of the post to something like "Improving Room Acoustics" or something like that! :-)
Paul
It should sound flat on headphones as they won't be affected by the acoustics if your room....the note velocity is constant through the file.
We could do with a chart of which note is which and what frequency they relate to.
CD
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Considering the ridiculous space I'm using at the moment mine's not too bad. I have a peak around 125Hz but the rest is fairly even. The room has no acccoustic treatment at all and changes from day to day depending on what my wife decides to store in here ;D. And I am far too close to the corner for comfort.
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Are you actually doing a mix in your Avatar photo ? I can imagine you're just reaching down to tweak a fader ;D
CD
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Are you actually doing a mix in your Avatar photo ? I can imagine you're just reaching down to tweak a fader ;D
CD
Actually I was trying to embarass my wife pretending to be a drunk outside the doctor's office. She just called me a dickhead and took the picture ;D ;D
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Ugg I didn't do this one in my new room until today. I need to do some work on things here, but until I get settled with the layout and construction I don't think it's worth the effort!
Mark
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Ugg I didn't do this one in my new room until today. I need to do some work on things here, but until I get settled with the layout and construction I don't think it's worth the effort!
Mark
LOl..How bad is it ?
I'm looking forward to re-trying mine once I instally the Auralex stuff I bought for my birthday.
Then I'll make the bass traps
CD
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It was kind of like a yo-yo ... actually not _that_ bad, but not great. A big bump up in one range and a big dropout in one freq.
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It was kind of like a yo-yo ... actually not _that_ bad, but not great. A big bump up in one range and a big dropout in one freq.
Haha
Scary stuff..just makes you realise
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Interesting... I took some notes on what notes were louder and quieter, and just moving my monitors 6 inches further away from the back wall flattened out the low end a lot (I had a bump from 4-6 that got cut in half or more) and everything above 15 originally started to get much louder, but is now also more under control... Hmmm.
I really need to read up more on 1/4 wave theory.
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I really need to get my setup off of the wall here too, but with my current layout it just doesn't work. I need to re-evaluate my whole studio layout at some point in the near future. My stuff just takes up so damned much space it's tough to get off the walls with the way the room is setup here :(
Mark
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I really need to get my setup off of the wall here too, but with my current layout it just doesn't work. I need to re-evaluate my whole studio layout at some point in the near future. My stuff just takes up so damned much space it's tough to get off the walls with the way the room is setup here :(
Mark
Move again ! ;D
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I really need to get my setup off of the wall here too, but with my current layout it just doesn't work. I need to re-evaluate my whole studio layout at some point in the near future. My stuff just takes up so damned much space it's tough to get off the walls with the way the room is setup here :(
Mark
Move again ! ;D
hah, not bloody likely :) I hate moving.
Mark
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Well, good news. The acoustical design guy we use here at work for our clients (Jeff Hedback, used to be a product designer for Auralex..just did Ozzy's new studio with us in CA) is going to help me shoot my room out design a solution, all of it chalked up in the name of education. We're going to do a cad type drawing of the room from which he can determine the acoustical issues from, and also shoot the room with a measurement mic and some measurement software (he turned me onto roomeq.com) and see what we can come up with. From there I'm going to try to make some diy stuff with his guidance, unless it comes to diffusion in which case I would have to spend some money.
I'll let you guys know what happens, should be very interesting.
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Well, good news. The acoustical design guy we use here at work for our clients (Jeff Hedback, used to be a product designer for Auralex..just did Ozzy's new studio with us in CA) is going to help me shoot my room out design a solution, all of it chalked up in the name of education. We're going to do a cad type drawing of the room from which he can determine the acoustical issues from, and also shoot the room with a measurement mic and some measurement software (he turned me onto roomeq.com) and see what we can come up with. From there I'm going to try to make some diy stuff with his guidance, unless it comes to diffusion in which case I would have to spend some money.
I'll let you guys know what happens, should be very interesting.
That site you mention just seems to be a landing page? roomeq.com ?
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Sorry, http://www.hometheatershack.com/roomeq/.
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Well, good news. The acoustical design guy we use here at work for our clients (Jeff Hedback, used to be a product designer for Auralex..just did Ozzy's new studio with us in CA) is going to help me shoot my room out design a solution, all of it chalked up in the name of education. We're going to do a cad type drawing of the room from which he can determine the acoustical issues from, and also shoot the room with a measurement mic and some measurement software (he turned me onto roomeq.com) and see what we can come up with. From there I'm going to try to make some diy stuff with his guidance, unless it comes to diffusion in which case I would have to spend some money.
I'll let you guys know what happens, should be very interesting.
That's great..can I send him mine ;D
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Heard that, I wish I could hook it up!
We're actually about do treatments for a vocal room in a guy's house here in Nashville, and we're going to do before/after pics/sound clips. The rooms sounds like a reverb chamber now, and with a limited budget we've got to make it sound Pro...the designer has his work cut out for him! I figure it would be neat to show the process from start to finish and show the result if anyone is interested.
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Heard that, I wish I could hook it up!
We're actually about do treatments for a vocal room in a guy's house here in Nashville, and we're going to do before/after pics/sound clips. The rooms sounds like a reverb chamber now, and with a limited budget we've got to make it sound Pro...the designer has his work cut out for him! I figure it would be neat to show the process from start to finish and show the result if anyone is interested.
I've done it myself now, hopefully I've done it right...certain sounds better but I haven't done any measurements in there yet.
I started a new thread with what I've done, just gotta tidy up and take a few more shots of it finished.
http://www.musicianscollaboration.com/forum/index.php?topic=5296.0
CD