On Wed, Mar 7, 2018 at 4:24 PM, Augustine Leudar <augustineleu...@gmail.com>
wrote:

> Hi Charlie !
> Im aware of course of directional loudspeakers that use ultrasonic beating
> - but I understood this is able to position sounds in 3D space - without
> physically having to point the speaker - if so that would be quite a cool
> advance,
>

​It would indeed and I'm extremely sceptical that it will work successfully
but please let us know when you get a chance!

Cheers,
Charlie​



> best
> Gus
>
> On 7 March 2018 at 23:51, Charlie Richmond <charlie....@gmail.com> wrote:
>
> > These have been around for a long time and they do work but there is a
> > sharp sweet spot and no bass at all of course...  and it's really only
> > stereo for the one person they are focused on but if the 3d imaging of
> the
> > original source is reasonable then the one listener will definitely hear
> > the 3d imaging that one can hear with two regular loudspeakers when they
> > are precisely in the originally prescribed sweet spot.  Therefore, you
> can
> > say that they technically do what they say they can do but that is less
> > than regular a good stereo speaker pair.  The main feature is that the
> > ultrasonic beating that the two drivers do which produces the audible
> sound
> > at the crosspoint is only audible for the one listener exactly in the
> > crosspoint and not audible to anyone else in the vicinity, which is a
> good
> > trick when it is desired.
> >
> > Charlie
> >
> > Charlie
> >
> > On Wed, Mar 7, 2018 at 2:47 PM, Augustine Leudar <
> > augustineleu...@gmail.com>
> > wrote:
> >
> > > Im desperately trying not to be skeptical because I really really want
> > this
> > > to be true - has anyone had a chance to test one out ?
> > >
> > > http://www.electronicbeats.net/the-feed/ultrasonic-
> > > speaker-emits-3d-spatial-sound/
> > >
> > > ?
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> > --
> > * Charlie Richmond - http://www.RichmondSoundDesign.com
> > <http://www.richmondsounddesign.com/>
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> --
> Dr. Augustine Leudar
> Artistic Director Magik Door LTD
> Company Number : NI635217
> Registered 63 Ballycoan rd,
> Belfast BT88LL
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-- 
* Charlie Richmond - http://www.RichmondSoundDesign.com
<http://www.richmondsounddesign.com/>
* Viber: +16047159441 Skype, LinkedIn & Twitter: charlierichmond
* facebook: charlie.richmond
* facebook.com/pages/Richmond-Sound-Design-Ltd/130195960832
<https://www.facebook.com/pages/Richmond-Sound-Design-Ltd/130195960832>
* google.com/+CharlieRichmond google.com/+Richmondsounddesign
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