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Concrete Vs other types of wall
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Jadex2017-05-29T17:45:13-00:00Re: Concrete Vs other types of wall
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Rooms with concrete walls suffer from very strong room modes because the walls are rigid and there is almost no damping. They can also be very reflective at middle and high frequencies. For that reason, when people install sound systems in basements where all sides are concrete, it is best to install acoustic wedges or other absorbent treatments and panel dampers on the walls to damp room modes. Multiple subs are always a good idea too.
]]>Wayne Parham2017-05-30T14:14:26-00:00Re: Concrete Vs other types of wall
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Kingfish2018-03-13T17:49:03-00:00Re: Concrete Vs other types of wall
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Wayne Parham wrote on Tue, 30 May 2017 09:14
. . .when people install sound systems in basements where all sides are concrete, it is best to install acoustic wedges or other absorbent treatments and panel dampers on the walls to damp room modes. Multiple subs are always a good idea too.
Is that meant to contain echoes, to keep the sound from getting distorted, or to keep the sound from leaking upstairs? Do you think it's worse when the flooring is concrete too? I have a system in the basement and it's hard to hear it. But then again, it isn't an expensive setup. Just old gear.]]>Leot552018-03-18T03:36:03-00:00Re: Concrete Vs other types of wall
https://audioroundtable.com/forum/index.phpindex.php?t=rview&goto=87480&th=21260#msg_87480
Concrete surfaces on all six sides (4 walls, floor and ceiling) are problematic because there is so little damping. Reflections are strong and room modes are terrible. Even if you tame the high-frequency reflections with absorbent materials, room modes are still strong. Panel absorbers on all walls are generally the only way to cure them.
]]>Wayne Parham2018-03-19T14:29:51-00:00Re: Concrete Vs other types of wall
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shadowplay2018-03-25T19:37:47-00:00Re: Concrete Vs other types of wall
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The concrete wasn't on all 6 surfaces, of course, there are windows! But there was still a difference in the quality of sound.
I bought some foam acoustic panels with which I lined the larger areas of concrete (floors, ceiling, and inner walls) and that helped. ]]>rarerat2018-04-05T08:41:37-00:00Re: Concrete Vs other types of wall
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Wren2018-04-06T17:13:50-00:00Re: Concrete Vs other types of wall
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I have had much better luck with rigid fiberglass.
Just cover them with thin, cheap fabric.]]>johnnycamp52018-04-06T21:24:28-00:00Re: Concrete Vs other types of wall
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I'm pleased with the results so far.]]>rarerat2018-04-14T08:48:53-00:00Re: Concrete Vs other types of wall
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Soundcheck122018-04-30T15:21:23-00:00