At what point does Ockham's Razor apply? Sent from my iPad
> On 20 Jan 2018, at 17:00, sursound-requ...@music.vt.edu wrote: > > Send Sursound mailing list submissions to > sursound@music.vt.edu > > To subscribe or unsubscribe via the World Wide Web, visit > https://mail.music.vt.edu/mailman/listinfo/sursound > or, via email, send a message with subject or body 'help' to > sursound-requ...@music.vt.edu > > You can reach the person managing the list at > sursound-ow...@music.vt.edu > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Sursound digest..." > > > WHEN REPLYING EDIT THE SUBJECT LINE > > ALSO EDIT THE MESSAGE BODY > > You are receiving the digest so when replying, please remember to edit your > Subject line to that of the original message you are replying to, so it is > more specific than "Re: Contents of Sursound-list digest…" the subject should > match the post you are replying to. > > Also, please EDIT the quoted post so that it is not the entire digest, but > just the post you are replying to - this will keep the archive useful and not > polluted with extraneous posts. > > This is the responsibility of digest subscribers. the community and list > subscribers care about the integrity of the threads and archives so this is > important. > > Today's Topics: > > 1. Re: MEMS speakers (Gary Gallagher) > 2. Re: MEMS speakers (Augustine Leudar) > 3. Re: MEMS speakers (Charlie Richmond) > 4. Re: MEMS speakers (J?rn Nettingsmeier) > 5. Re: MEMS speakers (J?rn Nettingsmeier) > 6. Re: MEMS speakers (Augustine Leudar) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 19 Jan 2018 19:04:12 +0000 > From: Gary Gallagher <g.null.dev...@gmail.com> > To: Surround Sound discussion group <sursound@music.vt.edu> > Subject: Re: [Sursound] MEMS speakers > Message-ID: > <cadbzbygj4hgfxfmg2cch0ms2kltkjzqakcimdecey+tkooh...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Wave field synthesis wall paper? How small does an an audio pixel have to > be? > > On Wed, Jan 17, 2018, 20:25 Augustine Leudar <augustineleu...@gmail.com> > wrote: > >> Interesting..... I can think of a lot of applications for these and spatial >> audio.... >> >> On Wednesday, 17 January 2018, Gary Gallagher <g.null.dev...@gmail.com> >> wrote: >> >>> https://hackaday.com/2018/01/16/new-part-day-mems- >>> loudspeakers/?_utm_source=1-2-2 >>> -------------- next part -------------- >>> An HTML attachment was scrubbed... >>> URL: <https://mail.music.vt.edu/mailman/private/sursound/ >>> attachments/20180117/0048d767/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 >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: < >> https://mail.music.vt.edu/mailman/private/sursound/attachments/20180117/21cc7455/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/20180119/6c849f58/attachment.html> > > ------------------------------ > > Message: 2 > Date: Sat, 20 Jan 2018 01:14:23 +0000 > From: Augustine Leudar <augustineleu...@gmail.com> > To: Surround Sound discussion group <sursound@music.vt.edu> > Subject: Re: [Sursound] MEMS speakers > Message-ID: > <CABx2juq6BReQBWYcxCxYzAvrENjXY80PczEa=zjpddg-ifx...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > exactly what I was thinking Gary - except youd need a million channel > interface - there's be other ways though. Basically it would be a good way > of getting 3D audio into peoples homes - as noone can either be bothered to > set up even 4 speakers let alone some fancy atmos setup. So some kind of > wallpaper would possibly work, something that requires almost zero setup > anyway... > >> On 19 January 2018 at 19:04, Gary Gallagher <g.null.dev...@gmail.com> wrote: >> >> Wave field synthesis wall paper? How small does an an audio pixel have to >> be? >> >> On Wed, Jan 17, 2018, 20:25 Augustine Leudar <augustineleu...@gmail.com> >> wrote: >> >>> Interesting..... I can think of a lot of applications for these and >> spatial >>> audio.... >>> >>> On Wednesday, 17 January 2018, Gary Gallagher <g.null.dev...@gmail.com> >>> wrote: >>> >>>> https://hackaday.com/2018/01/16/new-part-day-mems- >>>> loudspeakers/?_utm_source=1-2-2 >>>> -------------- next part -------------- >>>> An HTML attachment was scrubbed... >>>> URL: <https://mail.music.vt.edu/mailman/private/sursound/ >>>> attachments/20180117/0048d767/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 >>> -------------- next part -------------- >>> An HTML attachment was scrubbed... >>> URL: < >>> https://mail.music.vt.edu/mailman/private/sursound/ >> attachments/20180117/21cc7455/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/20180119/6c849f58/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 > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <https://mail.music.vt.edu/mailman/private/sursound/attachments/20180120/7eac8b44/attachment.html> > > ------------------------------ > > Message: 3 > Date: Fri, 19 Jan 2018 18:03:51 -0800 > From: Charlie Richmond <charlie....@gmail.com> > To: Surround Sound discussion group <sursound@music.vt.edu> > Subject: Re: [Sursound] MEMS speakers > Message-ID: > <cah8n2omy-0fc6vkecmvqndgormx-zavdeivtw7pmw9jtcmn...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > SoundMan-Server is a virtual matrix that has up to 1k discrete inputs and > outputs with dynamic level, eq and delay controls at each crosspoint if > that helps at all. > > Charlie > > On Fri, Jan 19, 2018 at 5:14 PM, Augustine Leudar <augustineleu...@gmail.com >> wrote: > >> exactly what I was thinking Gary - except youd need a million channel >> interface - there's be other ways though. Basically it would be a good way >> of getting 3D audio into peoples homes - as noone can either be bothered to >> set up even 4 speakers let alone some fancy atmos setup. So some kind of >> wallpaper would possibly work, something that requires almost zero setup >> anyway... >> >> On 19 January 2018 at 19:04, Gary Gallagher <g.null.dev...@gmail.com> >> wrote: >> >>> Wave field synthesis wall paper? How small does an an audio pixel have to >>> be? >>> >>> On Wed, Jan 17, 2018, 20:25 Augustine Leudar <augustineleu...@gmail.com> >>> wrote: >>> >>>> Interesting..... I can think of a lot of applications for these and >>> spatial >>>> audio.... >>>> >>>> On Wednesday, 17 January 2018, Gary Gallagher <g.null.dev...@gmail.com >>> >>>> wrote: >>>> >>>>> https://hackaday.com/2018/01/16/new-part-day-mems- >>>>> loudspeakers/?_utm_source=1-2-2 >>>>> -------------- next part -------------- >>>>> An HTML attachment was scrubbed... >>>>> URL: <https://mail.music.vt.edu/mailman/private/sursound/ >>>>> attachments/20180117/0048d767/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 >>>> -------------- next part -------------- >>>> An HTML attachment was scrubbed... >>>> URL: < >>>> https://mail.music.vt.edu/mailman/private/sursound/ >>> attachments/20180117/21cc7455/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/20180119/6c849f58/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 >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: <https://mail.music.vt.edu/mailman/private/sursound/ >> attachments/20180120/7eac8b44/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/attachments/20180119/87852074/attachment.html> > > ------------------------------ > > Message: 4 > Date: Sat, 20 Jan 2018 13:12:39 +0100 > From: J?rn Nettingsmeier <netti...@stackingdwarves.net> > To: sursound@music.vt.edu > Subject: Re: [Sursound] MEMS speakers > Message-ID: <61d505fe-f46d-5122-2264-687cb4b44...@stackingdwarves.net> > Content-Type: text/plain; charset=utf-8; format=flowed > >> 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... > > > -- > J?rn Nettingsmeier > De Rijpgracht 8, 1055VR Amsterdam, Nederland > Tel. +49 177 7937487 > > Meister f?r Veranstaltungstechnik (B?hne/Studio), Tonmeister VDT > http://stackingdwarves.net > > > ------------------------------ > > Message: 5 > Date: Sat, 20 Jan 2018 13:14:30 +0100 > From: J?rn Nettingsmeier <netti...@stackingdwarves.net> > To: sursound@music.vt.edu > Subject: Re: [Sursound] MEMS speakers > Message-ID: <39d8b6a1-f3a9-8acd-01fa-fa1fe00f6...@stackingdwarves.net> > Content-Type: text/plain; charset=utf-8; format=flowed > >> On 01/20/2018 01:12 PM, J?rn Nettingsmeier 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... > > Hit send too fast - meant to add that Fraunhofer in Germany has been > doing research on MEMS drivers for in-ear systems for a while, and they > combine the output of a cascade of laterally compressed nanomechanical > cavities in series to drive the eardrum. > > > -- > J?rn Nettingsmeier > De Rijpgracht 8, 1055VR Amsterdam, Nederland > Tel. +49 177 7937487 > > Meister f?r Veranstaltungstechnik (B?hne/Studio), Tonmeister VDT > http://stackingdwarves.net > > > ------------------------------ > > Message: 6 > Date: Sat, 20 Jan 2018 15:36:43 +0000 > From: Augustine Leudar <augustineleu...@gmail.com> > To: Surround Sound discussion group <sursound@music.vt.edu> > Subject: Re: [Sursound] MEMS speakers > Message-ID: > <cabx2juoqvfi6nx2+f5wrpbnybzejkjhbszypp_qekwnyekp...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > 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, J?rn 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... >> >> >> -- >> J?rn Nettingsmeier >> De Rijpgracht 8, 1055VR Amsterdam, Nederland >> Tel. +49 177 7937487 >> >> Meister f?r Veranstaltungstechnik (B?hne/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> > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > Sursound mailing list > Sursound@music.vt.edu > https://mail.music.vt.edu/mailman/listinfo/sursound > > WHEN REPLYING EDIT THE SUBJECT LINE > > ALSO EDIT THE MESSAGE BODY > > > ------------------------------ > > End of Sursound Digest, Vol 114, Issue 4 > **************************************** _______________________________________________ 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.
