There's also this beam forming sound bar: https://www.yarra3dx.com/ (does it work?) -- Marc
Le Thu, 8 Mar 2018 00:44:49 +0000 Augustine Leudar <augustineleu...@gmail.com> a écrit: > From their website : > > “The sound pressure at the ultrasonic focal points is sufficiently > high to radiate audible sound based on the self-demodulation effect > in air. Consequently, the ultrasonic focal points act as audible > sound sources. This sound-point method enables us to control aerial > audio distributions more flexibly and more precisely in comparison > with conventional superdirectional (sound-beam) loudspeakers.” > > On 8 March 2018 at 00:36, Augustine Leudar <augustineleu...@gmail.com> > wrote: > > > also it seems to be suggesting it can project sounds to precise > > points in space, at different distances from the speaker - in a way > > that someone breaking the beam wouldnt necessarily hear it (as they > > do in normal directional speaker sin museums etc) - thats the bit > > Im skeptical about.... > > > > On 8 March 2018 at 00:24, 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, > >> 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/ > >>> > > >>> > ? > >>> > -------------- next part -------------- > >>> > An HTML attachment was scrubbed... > >>> > URL: <https://mail.music.vt.edu/mailman/private/sursound/ > >>> > attachments/20180307/a720802a/attachment.html> > >>> > _______________________________________________ > >>> > Sursound mailing list > >>> > Sursound@music.vt.edu > >>> > https://mail.music.vt.edu/mailman/listinfo/sursound - > >>> > unsubscribe > >>> here, > >>> > edit account or options, view archives and so on. > >>> > > >>> > >>> > >>> > >>> -- > >>> * 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 > >>> -------------- next part -------------- > >>> An HTML attachment was scrubbed... > >>> URL: > >>> <https://mail.music.vt.edu/mailman/private/sursound/attachme > >>> nts/20180307/9300681a/attachment.html> > >>> _______________________________________________ Sursound mailing > >>> list Sursound@music.vt.edu > >>> https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe > >>> here, edit account or options, view archives and so on. > >>> > >> > >> > >> > >> -- > >> Dr. Augustine Leudar > >> Artistic Director Magik Door LTD > >> Company Number : NI635217 > >> Registered 63 Ballycoan rd, > >> Belfast BT88LL > >> > >> > > > > > > -- > > Dr. Augustine Leudar > > Artistic Director Magik Door LTD > > Company Number : NI635217 > > Registered 63 Ballycoan rd, > > Belfast BT88LL > > > > > > _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.
