Hi Augustine, I have tried and heard these kinds of speakers in various situations. Generally they are good for voice reproduction, there is very little below about 200 Hz in my memory and the cheaper versions are not very loud (or distort when you turn them up). Some of them sound nastier than others. The effect of bouncing sound off an object or wall works very well, but you have to hang the speaker so that the listener is not in the direct beam. In a reflective (gallery) space, the beam keeps bouncing, so that you might hear the sound somewhere else in the room than you expect! Most of the applications I’ve heard which worked combined these speakers with other sound sources, just adding details with the ultrasound speaker.
this one I remember sounded quite good: http://ultrasonic-audio.com/products/acouspade-directional-speaker/ best, Justin Justin Bennett jus...@justinbennett.nl www.justinbennett.nl http://jubilee-art.org/ > From: Augustine Leudar <augustineleu...@gmail.com> > To: Surround Sound discussion group <sursound@music.vt.edu> > Subject: [Sursound] Directional / parametric speakers ? > Message-ID: > <CABx2juo5hcnEZY-c3OETucS1YzwcF=vvxs2erlskzugrqp7...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > 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 ? _______________________________________________ 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.
