In the end let me clarify what I meant by "speakers will engage the room". That's the inevitable peaks and dips in the bass, the plates rattling when you slam a door and the echo from the ceiling when you scream loudly.
first, every conventional speaker is omni in the bass so peaks and dips in the bass have nothing to do with the topic discussed here
second, what echoes? Are You another guy living in a bathroom??
Hey! How many of You bathroom listeners are there? Dare and come out! 😉
I think that Rudolf insists on a capital point : when 360° radiating sources are very far from the boundaries ( 1 meter is still pretty close), then the reflections are enough delayed to not being combinated with the direct sound. 20 ms would be a must, then what a big room !
(...)
why omni are not more popular : they need a huge space
??? according to whom/to which handbook?
reflecting infinitely??
seriously what are You talking about? Are You living in a giant bathroom?
No, I have a regular room of average size. Are you living in an anechoic chamber?
No, I have a regular room of average size.
so what are You talking about? Do You know RT60 of a typical room? I assume You know what RT60 is?
It is not my intention to be offensive in any way!
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I'm a closet listener 😀
Look, I'm saying room reflections shouldn't be a problem unless you are playing really loud. Any speaker sounds different in a room and outside.
Look, I'm saying room reflections shouldn't be a problem unless you are playing really loud. Any speaker sounds different in a room and outside.
I think it's misleading to define what omni is or not. The underlying question is "What reflection pattern is desirable in sound reproduction and how can it be achieved"?
that's a good question! let me qualify it a bit though:
"What reflection pattern is desirable in available sound recordings reproduction in a typical listening room and how can it be achieved"?
first, every conventional speaker is omni in the bass so peaks and dips in the bass have nothing to do with the topic discussed here
second, what echoes? Are You another guy living in a bathroom??
Hey! How many of You bathroom listeners are there? Dare and come out! 😉
So you are touting the benefits of a speaker that radiates in all directions, yet you seem agitated by the notion that sound that radiates in a direction other than directly toward your ears is largely reflected from other surfaces?
If you placed an omnidirectional speaker in an anechoic chamber, wouldn't it sound much like a standard speaker?
Is there some magic that I'm missing here?
so what are You talking about? Do You know RT60 of a typical room? I assume You know what RT60 is?
It is not my intention to be offensive in any way!
Yes, it's the time necessary for a reflection to fall 60db relative to the original.
If you placed an omnidirectional speaker in an anechoic chamber, wouldn't it sound much like a standard speaker?
Is there some magic that I'm missing here?
yes You are missing couple of points, truth is that in an anechoic chamber even complete ambisonic setup sounds crappy, totally in head, no space, are You surprised? Toole writes about it
reflections are simply necessary for natural perception of space
Yes, it's the time necessary for a reflection to fall 60db relative to the original.
not precisely that but OK, for the sake of discussion, so what is RT60 of Your typical room?
180° polar pattern could well be achieved with an in wall 3-way-system - up to 4 kHz at least.
100% homogene without any changes in SPL, rolled off frequency or anything, in any angle ?
but 4khz, I'm not sure that will be enough
Graaffff...it's in any earing physiology text with some variations following the authors (15 to 30 ms). Two different signals are blended if perceived in this fork, hence alterations of the tonality and of the space. The most difficult parameter to integrate in playback music is that it's a continuous flow, very different from the sine tests used in most of laboratories. Looks like the timing starts on a transient on witch the earing process locks on. For the sake of the discussion, we can assimilate this to a kind of Hass effect...
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yes You are missing couple of points, truth is that in an anechoic chamber even complete ambisonic setup sounds crappy, totally in head, no space, are You surprised? Toole writes about it
reflections are simply necessary for natural perception of space
I guess what it boils down to in the end is personal preference. I haven't heard an omni that I liked. Granted, I've not tried to build a "good" one (and perhaps I should try it) but the theory still sounds like coloration to me.
Graaffff...it's in any earing physiology text with some variations following the authors (15 to 30 ms). Two different signals are blended if perceived in this fork, hence alterations of the tonality and of the space. The most difficult parameter to integrate in playback music is that it's a continuous flow, very different from the sine tests used in most of laboratories. Looks like the timing starts on a transient on witch the earing process locks on. For the sake of the discussion, we can assimilate this to a kind of Hass effect...
oh please stop it, this thread is hot enough 😛
come on...already 8 mins of peace !
ok! so...
Graaffff...it's in any earing physiology text with some variations following the authors (15 to 30 ms). Two different signals are blended if perceived in this fork, hence alterations of the tonality and of the space. The most difficult parameter to integrate in playback music is that it's a continuous flow, very different from the sine tests used in most of laboratories. Looks like the timing starts on a transient on witch the earing process locks on. For the sake of the discussion, we can assimilate this to a kind of Hass effect...
I can't really see the point - what's the point? Is there Haas effect or not? What does it mean?
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well, if I had to choose between unpleasant accurate and a bit colored but more nice sound, I would take the latter, absolutely
ofcourse within limits
luckily I don't have to make that choise any more 🙂
but I have been there, and for way too long 😱
ofcourse within limits
luckily I don't have to make that choise any more 🙂
but I have been there, and for way too long 😱
well, if I had to choose between unpleasant accurate and a bit colored but more nice sound, I would take the latter, absolutely
to make myself clear in that regard - I choose realistic
I understand high fidelity traditionally - in Hartleyan terms - as "realistic sound reproduction"
Don't be silly, there is no 100 % in acoustics. But +/-1,5 db in any direction for sure.100% homogene without any changes in SPL, rolled off frequency or anything, in any angle ?
As I said - you too will not be able to prove that your system can do it above 4 kHz. 😱but 4khz, I'm not sure that will be enough
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