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1 Forum: Pi Speakers «» Posted on: Thu, 17 March 2016 08:41 «» By: Wayne Parham
Re: 7Pi plans
You've got mail! Your room is large enough, depending on how you layout the space. See the following links for more information: High-Fidelity Uniform-Directivity Loudspeakers Speaker placement and wavefront launch Room modes, multisubs and flanki...
2 Forum: General «» Posted on: Sat, 12 March 2016 20:59 «» By: johnnycamp5
Re: How Much Have You Learned?
I have learned a lot about the likely presence of room modes or "nulls" within the modal region below the Schroeder frequency, existing in most typical residential listening room set-ups. I was aware of these modes or nulls, in the lower sub f...
3 Forum: Speaker «» Posted on: Sun, 06 December 2015 04:26 «» By: jonone
Re: Mono "flanking sub"
Yes smaller room are worse for modes I beleive. Jon
4 Forum: Speaker «» Posted on: Tue, 24 November 2015 14:01 «» By: jonone
Re: Mono "flanking sub"
Thanks Wayne, I'm using the Bessel filter in the minidsp, but I will check unless I changed it and forgot. It does sound pretty seamless ( almost like it's not on ) in the middle and left hand seat but the right hand seat I thought I could hear some thick...
5 Forum: Speaker «» Posted on: Tue, 10 November 2015 14:43 «» By: Wayne Parham
Re: Mono "flanking sub"
I would definitely blend as many sources as possible in the modal region, below 200Hz. Above 200Hz, the sound field is already complex, which is why it is called the statistical region. It is already blended by dense interference from all the mutitude ...
6 Forum: Speaker «» Posted on: Sun, 25 October 2015 15:20 «» By: Wayne Parham
Re: Mono "flanking sub"
A flanking sub is useful for one main speaker. So you can have just one, but if you do, it can't help both speakers of stereo mains. It can only help one. The main job of a flanking sub is to smooth the self-interference anomalies from nearest bound...
7 Forum: Pi Speakers «» Posted on: Tue, 26 May 2015 13:29 «» By: vandevoordekoen
4 pi speakers + 3 pi subwoofers, pics & measurements
Hello, Two years ago I started with the 4pi project thanks to Wayne who helped me a lot with his plans and answering my questions. Pictures! 1. Building the 4pi speakers 2. Finishing 3...
8 Forum: LSAF «» Posted on: Mon, 04 May 2015 22:37 «» By: admin
Re: LSAF 2015
Wayne Parham talking about vertical nulls or room modes or some such thing
9 Forum: Pi Speakers «» Posted on: Sun, 08 March 2015 10:42 «» By: Wayne Parham
Re: Four Pi Frequency Response
That looks like a measurement made indoors. We're seeing room modes and self-interference. The dips around 100Hz to 150Hz look like self-interference from the nearest boundary, which are precisely what flanking subs correct. You'll notice your first...
10 Forum: Pi Speakers «» Posted on: Sat, 15 November 2014 14:07 «» By: Wayne Parham
Re: Will 7Pi work in my room?
The floor won't be a problem, provided the room doesn't sound resonant from panel vibration. Most times, room modes are the biggest problem anyway. Curtains almost always help, and constant directivity cornerhorns benefit even more because there aren...
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