Hi!
What makes a loudspeaker to spatial sounding? I mean creating wide, deep, detailed sound stage.
What factors are decisive?
- driver's quality and ability?
- box?
- room placement?
- room accoustics?
Greets:
Tyimo
What makes a loudspeaker to spatial sounding? I mean creating wide, deep, detailed sound stage.
What factors are decisive?
- driver's quality and ability?
- box?
- room placement?
- room accoustics?
Greets:
Tyimo
When a selection of frequencies are intentionally out of phase, the human ear decodes it as spacial sound.
Decorrelating signals makes the sound seem to come from everywhere. Iow the localisation clues are completely lost.
With left and right being out of phase, you localise the sounds coming from the speakers as 2 different sound sources. Here localisation clues are lost to, but now the speakers themselves are the sound sources.
I don't think the topic starter wants this.
What is needed for a good illusion of the original sound stage is a loudspeaker with a uniform radiation pattern across a very large part of its frequency spectrum. Combined of cause with proper acoustics.
whole lot of factors contribute, most important are (IMHO) low diffraction and low IACC. Have You checked out Hungarian Heed Audio Enigma speakers? Try if You can. Some listening to such speakers might be very instructive.
The time (waveform) coherence between the direct and the reflected sound is also desirable for getting precise and focused virtual sound sources.
The time (waveform) coherence between the direct and the reflected sound is also desirable for getting precise and focused virtual sound sources.
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1) Smooth and controlled SPL polars within about 30 to 45 degrees of centerline of the loudspeaker (half angle) without disturbances or nearfield diffractions in coverage
2) Avoidance of illuminating the floor or ceiling with too much acoustic energy (this implies controlled directivity)
3) Absence of resonances or other disturbances in the radiated sound field by the drivers, loudspeaker boxes/horns, or the room in which the loudspeaker is reproducing
4) Absence of nearfield reflections that disturb the direct sound within about 2 ms of the direct sound arrival, especially from diffractions off the loudspeaker box itself
5) Room reflections from the room greater than 20 ms that are diffuse
6) You can produce artificial depth of imaging by bouncing a lot of reflections off the front wall or sides, but delayed more than 2-4 ms. This is also true of dipole and bipole radiators that create their own "second room reflections" (the first room being the venue in which the recordings being played back were made)
7) Absence of driver distortions, such as harmonic distortion, modulation distortion (including FM and AM distortion), compression distortion, and impulse distortion
8) If stereo or multichannel, loudspeakers that match their output phase across the audible bands and their absolute phase changes are controlled and slowly changing
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Yes, I know it, and I have some similar like that or the Shahinian Compass. I don't mean about omnidirektional or quasi omnidirektional sound.
I think about nice wide, deep, detailed sound stage.
Isn´t it so with Enigmas or the other speakers? What is about them that You don't like? Can You post any pictures of Your speakers?
I like very much the omnidirektional loudspeakers, but I think theirs sound stage not the most perfect. Anyway, my question is about non omnidirektional speakers.
Here are some of my old projects.
greets:
Tyimo
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This is also one of my goals, Cask05 summed it up very well... my speaker hits every one of those points and is the best imaging speaker I have ever heard. When you get it right the room boundaries disappear.
I'd add a speaker closest to point source helps, and a bipole/dipole/rear tweeter is absolutely not necessary to get a very deep expansive soundstage and in many cases can be a detriment.
I'd add a speaker closest to point source helps, and a bipole/dipole/rear tweeter is absolutely not necessary to get a very deep expansive soundstage and in many cases can be a detriment.
What do You like about them? I ask because most people who like omnis like them exactly for soundstaging.
"Favourite" as far as imaging/soundstaging is concerned?
Is it a one way fullrange or a coaxial? What the size of it?
ps.
You have a nice collection of unorthodox designs, slanted or flat top, with or without conical/spehrical deflectors - which one of them You like most in terms of soundstaging/imaging?
You have a nice collection of unorthodox designs, slanted or flat top, with or without conical/spehrical deflectors - which one of them You like most in terms of soundstaging/imaging?
In my experience, and opinion....
It can be a culmination of LOTS of things. The second to most recent speaker I've constructed has been stated by other builders than myself at various DIY events to have a 'holographic soundstage', even though that is the infamous buzzword phrase for audiophools.
I used higher end parts in these than I normally do, but I don't think that's the entire story. The acoustic and impedance phases are both very well aligned, and the AMT has a WIDE horizontal off-axis response. HD is measured to be pretty low as well.
I did integrate a switch to alternate between 2 capacitors of my own choosing, and one was massively spacious to me, "wall to wall" some said, and the other was generally stated as having 'more focus'. Neither were expensive components either. I have the on-axis FR of the spacious cap, but need to take that of the non as well to relay and correlate the info.
(500+Hz is valid and lower is lots of reflections)
HD:
Scientifically, there should be zero to no 'measureable' difference since the caps were within 0.1uF of each other.
The other thing I can say is that the FR as you go above on-axis has a little bit of lift around the xover point. Just above is flat at a long listening distance, the closer you are, the lower you have to be. We'll call it a +3 to +5 degrees tilted lobe.
I've only had about 5 projects accomplish the soundstage results as mentioned here, but all of them have different response profiles and such that I'm not even saying what came from the Nephila is the set of requirements for this to happen. I can say that 4 of those 5 used nicer xover components than your bargain surplus or house brands.
My 2c, take it for what you will.
Wolf
It can be a culmination of LOTS of things. The second to most recent speaker I've constructed has been stated by other builders than myself at various DIY events to have a 'holographic soundstage', even though that is the infamous buzzword phrase for audiophools.
I used higher end parts in these than I normally do, but I don't think that's the entire story. The acoustic and impedance phases are both very well aligned, and the AMT has a WIDE horizontal off-axis response. HD is measured to be pretty low as well.
I did integrate a switch to alternate between 2 capacitors of my own choosing, and one was massively spacious to me, "wall to wall" some said, and the other was generally stated as having 'more focus'. Neither were expensive components either. I have the on-axis FR of the spacious cap, but need to take that of the non as well to relay and correlate the info.
(500+Hz is valid and lower is lots of reflections)
HD:
Scientifically, there should be zero to no 'measureable' difference since the caps were within 0.1uF of each other.
The other thing I can say is that the FR as you go above on-axis has a little bit of lift around the xover point. Just above is flat at a long listening distance, the closer you are, the lower you have to be. We'll call it a +3 to +5 degrees tilted lobe.
I've only had about 5 projects accomplish the soundstage results as mentioned here, but all of them have different response profiles and such that I'm not even saying what came from the Nephila is the set of requirements for this to happen. I can say that 4 of those 5 used nicer xover components than your bargain surplus or house brands.
My 2c, take it for what you will.
Wolf
The musicians are in the room, and almost from everywhere I can get the stereo image. A kind of multi sweetspot, but the musicians location is not absolute prcise.
Yes. It has 8" coaxial Tannoy drivers.
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All of them are very good, but my room and the loudspeakers placement is not the best.
What is interesting is that I and one of my friend have a small TABAQ kind of loudspeaker with 3" Tang Band, and it has a very precise, detailed, and big sound stage!
I think that has to do with the size of the speakers (driver, baffle) and the room size and the placement. Ofcourse the reflecionts....
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