Recent content by twelti
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"Fast" and "slow" subwoofers: can we put them to bed?
But was it a slow hole or a fast one??!- twelti
- Post #43
- Forum: Todd Welti Discusses Subwoofers In Rooms
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"Fast" and "slow" subwoofers: can we put them to bed?
Ha! I still hear it frequently though!- twelti
- Post #41
- Forum: Todd Welti Discusses Subwoofers In Rooms
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"Improving Assessment of Low Frequency Room Acoustics"
"Improving Assessment of Low Frequency Room Acoustics - PART I" The first part of this very interesting research involved generating a number of verbal descriptors for subjective quality of bass. They use a corps of trained listeners, and a fairly well known method called "descriptive...- twelti
- Post #3
- Forum: Todd Welti Discusses Subwoofers In Rooms
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Bad setup, bad room, or sensitive ears? Subs are just never from the "same cloth"!
If you built your own space, I assume you only have a single layer of sheetrock on the inside (?). Metal studs? I would think that if you design you own room , and it has a reasonable amount of absorption in it (furniture etc.) then you wouldn't need much additional LF absorption. How thick...- twelti
- Post #44
- Forum: Todd Welti Discusses Subwoofers In Rooms
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Bad setup, bad room, or sensitive ears? Subs are just never from the "same cloth"!
Yes, when you are talking about a high end audio system, the cost of room treatment starts to look not as expensive by comparison. Doens't mean it's cheap though. On the other hand, moving subs around and/or optimizing level/delay etc. really can be cheap. Room treatment still might be...- twelti
- Post #42
- Forum: Todd Welti Discusses Subwoofers In Rooms
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Bad setup, bad room, or sensitive ears? Subs are just never from the "same cloth"!
Room treatment All true. Plus, room treatments for low frequency problems aren't cheap by any means.- twelti
- Post #40
- Forum: Todd Welti Discusses Subwoofers In Rooms
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"Improving Assessment of Low Frequency Room Acoustics"
This is going to be a multipart review of a very interesting Audio Engineering Society (AES) paper that attempts to correlate some basic room acoustic parameters to subjective impressions for low frequencies in small rooms. For those inclined to read the full paper, it is: "Improving the...- twelti
- Thread
- bass descriptors low frequency room acoustics
- Replies: 3
- Forum: Todd Welti Discusses Subwoofers In Rooms
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In-ceiling subs
Has anyone had any experience, or have any opinions about in-ceiling subs? For example the Sonance Architectual Series BPS-1 subwoofer system. http://www.sonance.com/products/speakers/detail/474 I like the idea of putting at least some subwoofers in locations other than along the walls...- twelti
- Thread
- ceiling in-ceiling subwoofer
- Replies: 8
- Forum: Todd Welti Discusses Subwoofers In Rooms
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Comparison of Double Bass Array to Sound Field Management: Overview
That's a very good question. I do seem to remember seeing a pattern show up in one room repeatedly, but I'm not sure I remember it. In any caseit was probably particular to that room and those seating locations. It might be worth looking into that though, I think I will put it on my to-do list.- twelti
- Post #10
- Forum: Todd Welti Discusses Subwoofers In Rooms
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"Fast" and "slow" subwoofers: can we put them to bed?
I would say that I'm in the 'sounds the same if eq'ed the same' camp. As far as I know, the effects (talking small signal domain) are all minimum phase. Possible exception to that might be in the combined response in the crossover region, where theoritically you can get a non-min-phase...- twelti
- Post #28
- Forum: Todd Welti Discusses Subwoofers In Rooms
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"Fast" and "slow" subwoofers: can we put them to bed?
True, it can be used as a subjective term. And, yes, I suspect room resonances are often what is heard. Whether it's an objective property of the subwoofer or a subjective quality, what I object to is the idea that it is some property of the sub that is separate from its magnitude/phase...- twelti
- Post #23
- Forum: Todd Welti Discusses Subwoofers In Rooms
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Comparison of Double Bass Array to Sound Field Management: THE MEATY PART!!!
Well, SFM sort of does that. Sort of, because you measure the alternative locations first, then select the best. The Synthesis system will allow you to see the prospective curves of different alternatives. The other general approach would be to have some sort of criterion, measure a basic set...- twelti
- Post #19
- Forum: Todd Welti Discusses Subwoofers In Rooms
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"Fast" and "slow" subwoofers: can we put them to bed?
Amen to that! I agree 100%- twelti
- Post #21
- Forum: Todd Welti Discusses Subwoofers In Rooms
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Comparison of Double Bass Array to Sound Field Management: THE MEATY PART!!!
If you only have one seat, the comparison is moot. SFM is really oriented towards multiple seats, and getting the seats consistant with each other. It would be possible, by changing a line or two of code to have SFM look for flat response at one seat, but that isn't really the intent.- twelti
- Post #16
- Forum: Todd Welti Discusses Subwoofers In Rooms
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Comparison of Double Bass Array to Sound Field Management: THE MEATY PART!!!
Interesting question. In rectangular rooms, you culd set up the DBA and then use it as a startiing solutin for SFM. It might be the case that SFM would find a better solution, particularly if the room was acoustically non rectangular. In a non-rectangular room, DBA doesn't really apply.- twelti
- Post #15
- Forum: Todd Welti Discusses Subwoofers In Rooms
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