Hi Augustine, Parametric arrays are an ongoing area of research here at DXARTS (see here <https://dxarts.washington.edu/research/technology/ultrasonic-beamforming> and here <https://dxarts.washington.edu/research/creative-work/acoustic-scan>). I can confirm that the sound of reflections is very pronounced such that when listening in the path of the reflection it is louder than the source itself. Very interesting when it moves :)
While I haven't heard the two speakers you mention, the audio spotlight <https://www.holosonics.com> is quite a powerful, highly directional speaker (though expensive). By nature of the "parametric" phenomenon, low frequencies are quite difficult to reproduce, and it's highly dependent on the hardware and signal (pre-)processing as well. The audio spotlight uses electrostatic transducers, so it has a wider frequency response than other products which use piezoelectric transducers, and it also helps that the speaker aperture is large. My best, Mike McCrea On Wed, Oct 4, 2017 at 6:36 PM, Augustine Leudar <augustineleu...@gmail.com> wrote: > Hi Marc, > that would be great. Im not really bothered about amazing audio fidelity so > much as if it can make it sound like objects are emiting sounds at least > vaguely convincingly (eg projecting the sound of a voice onto a statue so > it seems like the statue is talking) according to this vid it can do that : > > https://youtu.be/ne0Fy7Ybl8A?t=39 > > On 5 October 2017 at 00:15, Marc Lavallée <m...@hacklava.net> wrote: > > > > > Hi Augustine. > > > > I do have a Soundlazer; I got it 2 years ago. > > I can bring it from work, play with it a a bit more and report. > > I remember that it does not sound "good", and it spectrum is limited. > > Its using some DSP chip with a customizable software. > > > > -- > > Marc > > > > > > On Wed, 4 Oct 2017 23:50:46 +0100 > > Augustine Leudar <augustineleu...@gmail.com> wrote: > > > > > Hi, > > > Has anyone who tried directional speakers (those that use ultrasound > > > etc to create audible inteference patters in a "beam of sound" etc) > > > -? If so what were your experiences - did they work ? Any > > > recommendations on particularly good ones ? > > > I am looking at two at the moment (soundlazer and hypersound) - sound > > > lazer claims to be able to make a sound seem like it is emmiteed by > > > the object its aimed at - if this is true then I will have lots of > > > fun with that - but part of me is skeptical...... > > > > > > http://www.soundlazer.com/what-is-a-parametric-speaker/ > > > > > > http://hypersound.com/pro/products/ > > > > > > anyone ? > > > > > > > > > > > > > -- > 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/20171005/434444bc/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. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20171005/6f7596e3/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.
