Re: [Sursound] Spherical speakers ?

2012-10-20 Thread Robert Greene
The idea actually existed--dBX made one(I think it was they) for commercial /consumer sale Robert On Sat, 20 Oct 2012, Neil & Marcia Adams wrote: Again with txt only (thank you Martin) The late Dick Campbell designed a dodecahedron loudspeaker. Close? h

Re: [Sursound] Spherical speakers ?

2012-10-20 Thread Augustine Leudar
actually the dodecahedron things would work fine for my purposes, actually normal speakers work fine, I make sound art installations - outdoor ones, and there are certain instances where it might be useful to have a speaker that propogated sounds in all directions (as in real life the sound of say

Re: [Sursound] Spherical speakers ?

2012-10-19 Thread Neil & Marcia Adams
Again with txt only (thank you Martin) The late Dick Campbell designed a dodecahedron loudspeaker. Close? http://users.rcn.com/rhcamp/dodec45.pdf NeilA ___ Sursound

Re: [Sursound] Spherical speakers ?

2012-10-19 Thread umashankar manthravadi
m: gre...@math.ucla.edu > To: sursound@music.vt.edu > Subject: Re: [Sursound] Spherical speakers ? > > > OK. For this purpose (where power response is the main point) > the dodecahedral speakers would work fine. > Their difficulty for eg stereo use--that they bounce > soun

Re: [Sursound] Spherical speakers ?

2012-10-19 Thread Richard Lee
> I mean that instead of a cone there is a sphere, and able to emit sound in > all directions I'm guessing if it hasn't been done its because it presents > considerable technical difficulties - still ... There are no serious difficulties as long as size & $$ are not constraints. But apart from

Re: [Sursound] Spherical speakers ?

2012-10-19 Thread Robert Greene
OK. For this purpose (where power response is the main point) the dodecahedral speakers would work fine. Their difficulty for eg stereo use--that they bounce sound all around the room and also have oddball lobing effects would be irrelevant(or in the former instance useful) It would not be too h

Re: [Sursound] Spherical speakers ?

2012-10-19 Thread Martin Leese
Augustine Leudar wrote: > Hi Neil and Marcia, > I couldn't open that link. > > On 19 October 2012 02:56, Neil & Marcia Adams > wrote: > >> An HTML attachment was scrubbed... >> URL: < >> https://mail.music.vt.edu/mailman/private/sursound/attachments/20121019/1a358347/attachment.html The prob

Re: [Sursound] Spherical speakers ?

2012-10-19 Thread Paul Hodges
--On 19 October 2012 07:41 -0700 Robert Greene wrote: > there is no real reason to want such a thing. I have an electronic chamber organ; in order to excite the acoustic of the hall or church where I am using it in a manner comparable with a chamber organ with pipes I think such speakers would b

Re: [Sursound] Spherical Speakers ?

2012-10-19 Thread Christoph Moldrzyk
and has contributed to FLOSS/Linux > projects, amongst others by providing drivers for multichannel audio > interfaces and hosting the Pure Data community portal and mailing lists. > > http://iem.at/ > > We look forward to seeing you in Graz in May! > > Sincerely, > >

Re: [Sursound] Spherical speakers ?

2012-10-19 Thread Robert Greene
Such a thing was offered for sale for consumers by DBX(as I recall) a long time ago. I do not think it had much success--not surprisingly since there is no real reason to want such a thing. Robert On Fri, 19 Oct 2012, Fabio Kaiser wrote: Google for dodecahedron loudspeakers. There you'll find

Re: [Sursound] Spherical speakers ?

2012-10-19 Thread Robert Greene
There are true omni directional speakers, made by MBL , quite expensive. These work by having a whole surface that expands and contracts --a sort of lens shaped thing that is pushed in and out by compression of the ends. Hard to arrange--hence expensive. But they do have an essentially spherical

Re: [Sursound] Spherical speakers ?

2012-10-19 Thread Bo-Erik Sandholm
19 oktober 2012 14:36 To: Surround Sound discussion group Subject: Re: [Sursound] Spherical speakers ? Google for dodecahedron loudspeakers. There you'll find some results. These kind of loudspeakers are used in room acoustic measurements. To goal is to excite the room without directional

Re: [Sursound] Spherical speakers ?

2012-10-19 Thread Fabio Kaiser
Google for dodecahedron loudspeakers. There you'll find some results. These kind of loudspeakers are used in room acoustic measurements. To goal is to excite the room without directional preference. But mostly the single speaker chassis cannot be driven independently. Nils already mentioned th

Re: [Sursound] Spherical speakers ?

2012-10-19 Thread Marc Lavallée
Augustine, Login to the mailman archive is required in order to access the link. Here's what it says: --- The late Dick Campbell designed a dodecahedron loudspeaker. Close? http://users.rcn.com/rhcamp/dodec45.pdf NeilA --- Marc Augustine Leudar a écrit : > Hi Neil and Marcia, > I co

Re: [Sursound] Spherical speakers ?

2012-10-18 Thread Augustine Leudar
hmm - I get the following mesage : An HTML attachment was scrubbed... then a broken link On 19 October 2012 03:19, Neil & Marcia Adams wrote: > An HTML attachment was scrubbed... > URL: < > https://mail.music.vt.edu/mailman/private/sursound/attachments/20121019/a99a2152/attachment.html > > >

Re: [Sursound] Spherical speakers ?

2012-10-18 Thread Neil & Marcia Adams
An HTML attachment was scrubbed... URL: ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound

Re: [Sursound] Spherical speakers ?

2012-10-18 Thread Augustine Leudar
Hi Neil and Marcia, I couldn't open that link. On 19 October 2012 02:56, Neil & Marcia Adams wrote: > An HTML attachment was scrubbed... > URL: < > https://mail.music.vt.edu/mailman/private/sursound/attachments/20121019/1a358347/attachment.html > > > _

Re: [Sursound] Spherical speakers ?

2012-10-18 Thread Neil & Marcia Adams
An HTML attachment was scrubbed... URL: ___ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound

Re: [Sursound] Spherical speakers ?

2012-10-18 Thread Augustine Leudar
I did come across these sorts of things - not to be pedantic, but they're not really spherical (though as good as I guess) but lots of little normal speakers pointing in all directions. Would it not be possible - by means of some sort of elastic material - to have just one spherical surface that vi

Re: [Sursound] Spherical speakers ?

2012-10-18 Thread Nils Peters
http://cnmat.berkeley.edu/research/spherical_loudspeaker_array also the IEM and ircam are working on those things On 12-10-18 12:49 PM, Augustine Leudar wrote: Spherical speakers ? Are there such things ? - I tried googling to no avail. I dont mean something like this : http://www.instablogsim

[Sursound] Spherical speakers ?

2012-10-18 Thread Augustine Leudar
Spherical speakers ? Are there such things ? - I tried googling to no avail. I dont mean something like this : http://www.instablogsimages.com/images/2007/08/13/eole-system_48.jpg I mean that instead of a cone there is a sphere, and able to emit sound in all directions I'm guessing if it hasn't b