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Post by mahdes on Jan 21, 2019 19:59:54 GMT
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Post by Ethan Winer on Jan 21, 2019 20:23:01 GMT
First, thanks for moving this here. I can't deal with Facebook's tiny chat window.
The response you show is not bad at all for a small room. The standard goal is to get the reason within a 10 dB window, and you are right there. Of course, more bass traps will help further. Small features like a window ledge are not a problem. And the best place for a window is where you have it now. Your speakers face the other way, and glass isn't the problem many people believe anyway. The more important wall to treat is the rear wall behind you.
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Post by mahdes on Jan 21, 2019 20:28:44 GMT
Thanks
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Post by mahdes on Jan 21, 2019 21:28:44 GMT
First, thanks for moving this here. I can't deal with Facebook's tiny chat window. The response you show is not bad at all for a small room. The standard goal is to get the reason within a 10 dB window, and you are right there. Of course, more bass traps will help further. Small features like a window ledge are not a problem. And the best place for a window is where you have it now. Your speakers face the other way, and glass isn't the problem many people believe anyway. The more important wall to treat is the rear wall behind you. Thank you Ethan. My corners are full of bass traps - from floor to the ceiling. Where should I put more bass traps to kill that huge peak at 130hz and gain more volume below 100hz? Horizontal corners (wall to ceiling) on the wall behind my listening position? How close my speakers should be to the window? Is there something I can do with my table to improve the sound? I thought that the Window Ledge can really make that 130hz bump since it is very close to the monitors. I would love to make that 100-200hz area less peaky and more volume in 50-90 hz. Other wise I tend to scoop a lot of between 100-200hz and boosting more under 100hz that I should
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Post by Ethan Winer on Jan 21, 2019 21:34:37 GMT
Bass traps also work in wall-ceiling corners, wall-floor corners, all over the front and rear walls, and then on the side walls and ceiling. In that order. The only way to know where is best for your speakers is to measure as you experiment. I suggest you get the Room EQ Wizard software. It's free, and it does a lot more than Sonarworks.
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Post by Deleted on Jan 22, 2019 23:30:58 GMT
Don't get obsessive about frequency response graph, it's not that important. There are much more than that, what defines a good sound.
It's really hard to tune a small room, so as Ethan said, that response ain't bad for a room that size.
You need to try many different positions with your speakers and measure, I would do that before adding any more treatment. So get the REW and measure!
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Post by Hexspa on Jan 23, 2019 9:02:41 GMT
130Hz, C3, has the wavelength of your ceiling height. Your 460cm dimension is just 8Hz, or 68cm away from C2 (527.47cm). Whenever you have same and double dimensions, you're bound to have modal (antinode) buildup where they line up.
If you want to tame that range, treat those dimensions more - probably the ceiling is easier. Also, your 340cm dimension's 3/4 wavelength matches that of your 260cm ceiling. Therefore, you can treat that one a bit less in order to take advantage of the nulling effect at that frequency. I've done this in my room and it works.
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Post by mahdes on Jan 24, 2019 9:39:47 GMT
Don't get obsessive about frequency response graph, it's not that important. There are much more than that, what defines a good sound. It's really hard to tune a small room, so as Ethan said, that response ain't bad for a room that size. You need to try many different positions with your speakers and measure, I would do that before adding any more treatment. So get the REW and measure! Hi ! Thank you for the reply! I did a REW test - I hope I did it right and these are the results. drive.google.com/open?id=1TKNRbhVsIe6NXgzGpNtT7J6ywaBSNuyHCan you give me some tips about what to do to make it better ?
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Post by mahdes on Jan 24, 2019 9:40:23 GMT
Bass traps also work in wall-ceiling corners, wall-floor corners, all over the front and rear walls, and then on the side walls and ceiling. In that order. The only way to know where is best for your speakers is to measure as you experiment. I suggest you get the Room EQ Wizard software. It's free, and it does a lot more than Sonarworks. Thank you for the reply! I did a REW test - I hope I did it right and these are the results. drive.google.com/open?id=1TKNRbhVsIe6NXgzGpNtT7J6ywaBSNuyHCan you give me some tips about what to do to make it better ?
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Post by Deleted on Jan 24, 2019 15:12:32 GMT
Don't get obsessive about frequency response graph, it's not that important. There are much more than that, what defines a good sound. It's really hard to tune a small room, so as Ethan said, that response ain't bad for a room that size. You need to try many different positions with your speakers and measure, I would do that before adding any more treatment. So get the REW and measure! Hi ! Thank you for the reply! I did a REW test - I hope I did it right and these are the results. drive.google.com/open?id=1TKNRbhVsIe6NXgzGpNtT7J6ywaBSNuyHCan you give me some tips about what to do to make it better ? It's really hard to see whats going on, with those pictures. Can you post the .mdat file itself? So i can open it up and look. Also it would be better to measure one speaker at a time, so lets say first L then R, then both at the same time.
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Post by Ethan Winer on Jan 24, 2019 20:26:39 GMT
Yes, those graph are not useful. mahdes, see this article that shows the best way to scale REW graphs: Room Measuring Primer
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Post by Hexspa on Jan 25, 2019 7:13:32 GMT
You want your graphs to be from about 20Hz-300Hz to measure bass SPL. You also only want to show about +20 and -20dB from where your full smoothed SPL averages. When you have it set like you did, it's hard to see what's really happening.
Start there and we can do waterfall graphs next.
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Post by mahdes on Feb 18, 2019 9:54:30 GMT
Hey guys. Finally free day for a proper REW measurement. Is this graph SPL more useful? I will post waterfall and all you need later. This time I measured with Neumann KH 310 (no sub) and sonarworks mic - because My room size: 470 long 263 height My monitors are 20 centimeters from the window behind them I'm sitting 165 centimeters away from the window behind the monitors. I have a lot of thick rockwool triangles left. I want to place them in very effective way. Thank you Attachments:
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Post by mahdes on Feb 18, 2019 16:16:22 GMT
You want your graphs to be from about 20Hz-300Hz to measure bass SPL. You also only want to show about +20 and -20dB from where your full smoothed SPL averages. When you have it set like you did, it's hard to see what's really happening. Start there and we can do waterfall graphs next. Is it better ? Thank you!!!! Attachments:
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Post by Hexspa on Feb 18, 2019 19:34:26 GMT
Hey mahdes. I just want to let you know that I looked at this. As anomalous as that mega peak at 35Hz is, your real issue is the null at 72Hz. It's almost noon which means I'm about to turn into a pumpkin due to exhaustion so I can't fully analyze this now but the bottom line is that this is more than likely caused by an interaction between your room's modes and the point at which you took this measurement. (I think that's the longest sentence I've ever written which proves the point.)
If you haven't, experiment with taking a few more measurements in about a 1 foot radius - or whatever that is in metric - and see how your response changes. It's way easier to find a slightly better listening position than it is to move panels around. Please let me know how that goes and remember not to use any smoothing for your bass SPL. I know some is ok but I'd rather see none.
Thanks.
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