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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
Subject: Re: [Sursound] MEMS speakers
Content-Type: text/plain; charset="utf-8"
Wave field synthesis wall paper? How small does an an audio pixel have to
be?
Post by Augustine LeudarInteresting..... I can think of a lot of applications for these and spatial
audio....
Post by Gary Gallagherhttps://hackaday.com/2018/01/16/new-part-day-mems-
loudspeakers/?_utm_source=1-2-2
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Dr. Augustine Leudar
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Company Number : NI635217
Registered 63 Ballycoan rd,
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Message: 2
Date: Sat, 20 Jan 2018 01:14:23 +0000
Subject: Re: [Sursound] MEMS speakers
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...
Post by Augustine LeudarWave field synthesis wall paper? How small does an an audio pixel have to
be?
Post by Gary GallagherInteresting..... I can think of a lot of applications for these and
spatial
Post by Gary Gallagheraudio....
Post by Gary Gallagherhttps://hackaday.com/2018/01/16/new-part-day-mems-
loudspeakers/?_utm_source=1-2-2
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--
Dr. Augustine Leudar
Artistic Director Magik Door LTD
Company Number : NI635217
Registered 63 Ballycoan rd,
Belfast BT88LL
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------------------------------
Message: 3
Date: Fri, 19 Jan 2018 18:03:51 -0800
Subject: Re: [Sursound] MEMS speakers
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
Post by Augustine Leudarexactly 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...
Post by Gary GallagherWave field synthesis wall paper? How small does an an audio pixel have to
be?
Post by Gary GallagherInteresting..... I can think of a lot of applications for these and
spatial
Post by Gary Gallagheraudio....
Post by Gary Gallagherhttps://hackaday.com/2018/01/16/new-part-day-mems-
loudspeakers/?_utm_source=1-2-2
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Post by Gary GallagherPost by Gary Gallagheredit 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
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Dr. Augustine Leudar
Artistic Director Magik Door LTD
Company Number : NI635217
Registered 63 Ballycoan rd,
Belfast BT88LL
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* 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
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------------------------------
Message: 4
Date: Sat, 20 Jan 2018 13:12:39 +0100
Subject: Re: [Sursound] MEMS speakers
Content-Type: text/plain; charset=utf-8; format=flowed
Post by Augustine LeudarWave 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
Subject: Re: [Sursound] MEMS speakers
Content-Type: text/plain; charset=utf-8; format=flowed
Post by Augustine LeudarPost by Gary GallagherWave 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
Subject: Re: [Sursound] MEMS speakers
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 <
Post by Augustine LeudarPost by Gary GallagherWave 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
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
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