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 > > -- Dr. Augustine Leudar Artistic Director Magik Door LTD Company Number : NI635217 Registered 63 Ballycoan rd, Belfast BT88LL -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20180308/059512ca/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.
