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Monitor Placement And Acoustics
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GuyMonzy
Started Topics :
4
Posts :
5
Posted : May 16, 2007 10:01
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Hello, all
I have a pair of BM6A (wonderful monitors btw) but my room acoustics suck. whenever I seat at my desk I hear fine but there's no lowend. I then seat on my bed which is a meter further back and everything sounds amazing - full of lows but not muddy, you can realy hear the compression changes. I have a relatively large room (3x5, I seat infront of the 3m wall), and the wall behind the speakers is covered with simple acoustic sponge.
Anyways I'm interested in some advice about my problem (maybe there are others that share the same problem) and thought it might be a good idea to start a thread about home studio acoustics, people tend to forget the importance of it sometimes...
good luck to us all |
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pilgrim
IsraTrance Junior Member
Started Topics :
19
Posts :
218
Posted : May 16, 2007 11:47
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Hey,
where are they standing on? i have some auralex mopad's and they improved my acoustic here big times!
although it sounds like you have some standing waves or something like that, maybe put more foam (thick one) behind your speaker...
it's always difficult to treat rooms, try out cheap stuff and listen then try again... |
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Trip-
IsraTrance Team
Started Topics :
101
Posts :
3239
Posted : May 16, 2007 11:49
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About starting a thread - there have been many threads started about it already.
As for your problem,
You are probably sitting in a room node, be it axial from any dimension - Or it could also be that your monitors are in a node and do not excite those low freqs well.
Make sure you don't sit in the middle of the room exactly - and make sure your monitors are ~1/6 room length away from the wall.
*this info is mostly for large empty rooms - smaller rooms which contain stuff is hard to treat and this might not be applicable.
 Crackling universes dive into their own neverending crackle...
AgalactiA |
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GuyMonzy
Started Topics :
4
Posts :
5
Posted : May 16, 2007 12:01
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Thanks for the replies so far,
I forgot to mention my BM6A are mounted on my previous Alesis mkII.. is that stupid? it doesnt move at all and its very steady so I dont think that's the problem.
my monitors are placed in a triangle about 80cm from each other and 50-70 cm or so from my ears. when I increase the distance of the monitors from my ears to about 1.5m everything sound much better low freq wise but it is impractical cause I'm also 1m away from my computer and stuff. |
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Trip-
IsraTrance Team
Started Topics :
101
Posts :
3239
Posted : May 16, 2007 12:23
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Seems that your monitors are on 1/3rds of the room's width. It might be better to place them farther apart from each other.
Adjust your sitting place at either 90 degrees traingle with your monitors, or 60 degrees. Or whatever works best in between.
In a home studio, I would put the monitors closer to me than my computer screen. This makes it mandatory sitting even closer - something like a 90 degree triangle. Depends what works for you.
Crackling universes dive into their own neverending crackle...
AgalactiA |
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GuyMonzy
Started Topics :
4
Posts :
5
Posted : May 16, 2007 13:58
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Thanks Trip,
actually I've just spoken to my DynAudio technical supporter, and he too advised me to increase the distance between the speakers to about 2m or so.
I think my best bet now will be getting monitor floor stands.
any advice on what to get? brands and such... |
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Boobytrip
IsraTrance Junior Member
Started Topics :
39
Posts :
988
Posted : May 16, 2007 20:52
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Alex Roudos
IsraTrance Junior Member
Started Topics :
33
Posts :
411
Posted : May 16, 2007 21:07
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I have the Mackie HR-624 and the distance between them is 2 meters. The sitting/listening position is 1.20m from each other. If i increase the volume enough i feel the bass and kick hit me on the chest, just like in a club.
As for the speaker stands, if you can afford it, check the Atacama Nexus 10 or the china cones(chinacones.co.uk) also expensive.
A friend told me once that the biggest mistake we make is that we believe we live, when in reality we are sleeping in the waiting room of life. |
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Elad
Tsabeat/Sattel Battle
Started Topics :
158
Posts :
5306
Posted : May 17, 2007 00:22
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defintly stands will help u
also u can check like this:
sit in your nomal position
have friend "walking" around the walls with moirror
where u see the speakers most likely u have also reverb from there
sponge there will help , but treat only mid and hi.. u might wanna add bass trap as well.
www.sattelbattle.com
http://yoavweinberg.weebly.com/ |
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Seppa
Started Topics :
8
Posts :
485
Posted : May 17, 2007 01:58
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Quote:
| have friend "walking" around the walls with moirror |
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this is a good technik to find out the sweet spot where to place absober or some kind of diffusors.... a must for room treatment.
Quote:
| u might wanna add bass trap as well |
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Even if a bass trap is often a good thing to have in his case he lacks low end a bass trap is not gonna solve his problem.
Did you make sure that the LF trim at the back of the bm6 is set to 0?
big rooms usually tend to boost the LF due to the length of the LF waves which tend to stand there.
If your bed is in a corner you will obiously hear more bass, you might like it , but its almost certain its not what comes out of your speaker. thats purely the room.
the bm6 do not go as low as most 8inch monitors. So its a good thing that you don't hear to much bass.
it may be your mix , did you AB your work with release stuff? this might be a good thing to do to get a good idea of what comes out of your speakers.
A few general rules for a diy studio:
1. A symmetric room ( very important) even the placement of hardware can have influences on the sound. If you have a bed somewhere try to put something symetrically that will absorb as much as him.
2.A bass trap is often required but I'd say in your case its not a priority.
3. Absorbers at the back of the speakers pretty thick too to absorb mainly mid frequency. you have a big room so the high are potentially not as much of a problem as the low or even mid.
4.It s good thing to use the mirror technik to see reflection from the speaker to the wall to the listening position, and try to apply on the side walls something like diffusors or absorbers (nothing fancy very easy to do, pm me for more info on that)
5. for a better bass definition and clarity use a subwoofer or even 2. one at speaker location the other to the sidewall( for a home studio one is enough. (remember from 80 to 30 or 40hz the bm6 don't do it as well as a sub.
this is a bed studio so I'm not gonna talk about non parallel walls and ceiling.
hope it helps |
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sy000321
IsraTrance Junior Member
Started Topics :
46
Posts :
1142
Posted : May 18, 2007 17:04
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hey seppa, you seem to know alot about acoustics
my studio is in a room with no a "inverted V" ceilling... maybe you can help me overcome some of the acoustic problems
roll a joint or STFU :) |
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UnderTow
Started Topics :
9
Posts :
1448
Posted : May 18, 2007 20:42
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Quote:
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On 2007-05-17 01:58, Seppa wrote:
Even if a bass trap is often a good thing to have in his case he lacks low end a bass trap is not gonna solve his problem.
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There is no bass at the listening spot but in other spots there is. This suggest that his listening spot is in a "nul" of a room mode. Adding bass traps should certainly help this.
Bass traps arn't about removing bass as such but rather about making the bass response more even throughout the room.
GuyMonzy, check out the graphs on this page: http://www.mcsquared.com/metricmodes.htm
It will show you the peaks and nulls in room modes to give you an idea of how it works. You can fill in the measurements of your own room and it will tell you at which frequencies there will be room modes.
UnderTow |
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Seppa
Started Topics :
8
Posts :
485
Posted : May 18, 2007 21:41
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Quote:
| hey seppa, you seem to know alot about acoustics
my studio is in a room with no a "inverted V" ceilling... maybe you can help me overcome some of the acoustic problems |
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I know a bit about acoustics I did study some a few years back while I was studying recording arts, and also through the bulding of a few recording studios including mine. But I am not an acoustician!!!!!!
so I can try to help you out if you pm me.
Quote:
| There is no bass at the listening spot but in other spots there is. This suggest that his listening spot is in a "nul" of a room mode. Adding bass traps should certainly help this. |
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You could be right, a bass trap could help, but not for certain.
He says that he hears the bass fine on the bed which is most probably against the wall or even on a corner. so the only "spot" he is talking about is I guess next to the wall and therefore hearing the boost caused by the rear. Therefore comparing that to the listening point
The bm6 are not very powerful and they can be weak in wide rooms....
the truth is that he s description is poor and this is all speculation !
to actually work it out he would have to go around the room and listening to the sound at different spots so get an idea of what is going on and then maybe moving the speaker around ect.......... I would do that before thinking of making a bass trap.
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Boobytrip
IsraTrance Junior Member
Started Topics :
39
Posts :
988
Posted : May 20, 2007 01:06
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From what i gathered basstraps are always a good idea. Unless you happen to live in a large room with slanted walls they always will help the bass response of the room to some degree. After you have made and placed two, four or more basstraps it can help if you have two friends who move the monitors from the centre to the sides of the room while you are listening to a track that contains all frequencies. If you do this you'll find certain monitor placement spots where the stereo image is good and the frequency balance sounds best. Keep the monitors there and start making music again.
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Witchery Whistle
Started Topics :
1
Posts :
64
Posted : May 22, 2007 14:58
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i have a room like this
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and the (T)able is here, standing right as u see "T"
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and the (m)onitors like this
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and it's not possible to change it.
The table is narrow, so i have to put NL on it only when i'm inspired to make music, including the setup every time with midi cables etc...
It goes without saying NL is very close to the monitors (hope this wont damage any of them) and the distance between me and monitors is just the demanded 1m, not more.
Well, take it easy guys, skills first  |
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