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495 Search Results Found |
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Forum: General «»
Posted on: Thu, 09 November 2017 10:12 «»
By: Wayne Parham
Re: Small rooms are harder to get good sound?
Yes, small rooms have more problematic room modes than large rooms.
The larger the room, the further away the reflections are. This is good both for delay and intensity.
Rooms that are very large act more like an anechoic (reflection free) environ...
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Forum: Home Theater «»
Posted on: Mon, 06 November 2017 10:51 «»
By: Wayne Parham
Re: The subwoofer volume and crossover
I was generalizing the concepts and using "round numbers" in my earlier post above.
Flanking subs are setup to blend generally in the 100-200Hz region, but in practice the blending region is shifted a little lower than that. Distributed mul...
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Forum: Room Acoustics «»
Posted on: Thu, 02 November 2017 10:13 «»
By: Wayne Parham
Re: Why is drywall bad?
That's true. Rooms with framed drywall construction are much better than rooms with brick, stucco, concrete or rock walls. The drywall panels vibrate enough that they absorb some of the bass frequencies, and so act a little bit like panel absorbers.
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Forum: Pi Speakers «»
Posted on: Wed, 20 September 2017 10:48 «»
By: Wayne Parham
Re: Various questions regarding 7Pi
The walls don't need to be rigid; In fact, a lossy wall is best. Just not one that buzzes as it vibrates.
The reason we like a lossy wall is it damps room modes. Ideally, we'd like a wall that became increasingly rigid above the Schroeder frequency...
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Forum: Pi Speakers «»
Posted on: Mon, 18 September 2017 18:33 «»
By: Wayne Parham
Re: Various questions regarding 7Pi
Answers by numbers:
Midhorn questions:
1. In the π constant directivity cornerhorn designs, the midhorn blends with the bass bin in the 100Hz to 200Hz region. There is enough output from both sound sources to mitigate vertical room modes and floor ...
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Forum: Room Acoustics «»
Posted on: Fri, 25 August 2017 02:42 «»
By: drake
Re: Foam versus fiberglass
I agree that there are speakers that sound much better than others in the same room. It is interesting to read all aspects regarding insulation and I think it is one of those topics that's non-exhaustive.
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Forum: Room Acoustics «»
Posted on: Mon, 21 August 2017 20:24 «»
By: Wayne Parham
Re: Foam versus fiberglass
There are a lot of things that go into making a great sounding room. Some are more important than others. Some are huge, other smaller "Nth degree" things. And sometimes, two different approaches solve similar acoustic problems to varying de...
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Forum: Room Acoustics «»
Posted on: Sat, 08 July 2017 12:36 «»
By: Wayne Parham
Re: The corners
Corners are associated with all room modes - axial, tangential and oblique. So they are effective places to damp bass sound. But the best way to damp room modes is with panel absorbers. Look them up:
Panel Absorbers
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Forum: Room Acoustics «»
Posted on: Wed, 31 May 2017 13:02 «»
By: Wayne Parham
Re: Room acoustic problems
Small rooms have greater problems with room modes.
Search for "reverberent field" to learn more about room treatments and loudspeaker configurations that work well from 200Hz up.
Search for "room modes" to learn more about room ...
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Forum: Room Acoustics «»
Posted on: Tue, 30 May 2017 09:14 «»
By: Wayne Parham
Re: Concrete Vs other types of wall
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 wh...
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