Youd have to have "patches" of mems working in unison I guess to get the lower frequencies . You might be abvle to do soemthing interesting with the ultrasonic methods the directional "zone" speakers use as well....
On 20 January 2018 at 12:12, Jörn Nettingsmeier < netti...@stackingdwarves.net> wrote: > On 01/19/2018 08:04 PM, Gary Gallagher wrote: > >> Wave field synthesis wall paper? How small does an an audio pixel have to >> be? >> > > > The question is more like "how big can you make it?". An audio "pixel" of > a square millimetre cannot produce meaningful audio frequencies if > suspended in mid-air without a baffle, you would have to get somewhat close > to the wavelength. So no million-channel audio interfaces either, I guess > the approach would be to use lots of those pixels in unison. How you ensure > good airtight coupling between them is one question, and the other is how > much excursion you can get. > > Thiele-Small parameters for silicon cavities, anyone? :-D > > It's quite a moonshot actually, and if you start thinking about the > complexities, that carbon nanosheet paper that came from China a few years > back doesn't sound soo far-fetched anymore, where people were producing > sound by heating surfaces with an extremely good heat conductivity (so its > thermal cycles can be at audio frequencies). Problem there is 100% k2, as > it's effectively a half-wave rectifier... > > > -- > Jörn Nettingsmeier > De Rijpgracht 8, 1055VR Amsterdam, Nederland > Tel. +49 177 7937487 > > Meister für Veranstaltungstechnik (Bühne/Studio), Tonmeister VDT > http://stackingdwarves.net > > _______________________________________________ > 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20180120/5f11d678/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.
