Re: [Sursound] OSSIC Kickstarter Campaign Begins

[umashankar manthravadi]

I had been thinking, for three or four years now, that if one builds an eight 
driver headphone, it should be possible to eliminate HRTF to a large extent. I 
have been intending to build one into a motorcycle helmet. You will then only 
need headtracking for a stable image.
OSSIC is an eight driver system.


umashankar

Sent from Mail for Windows 10

From: Marc Lavallée
Sent: Wednesday, February 24, 2016 9:28 AM
To: Surround Sound discussion group
Subject: Re: [Sursound] OSSIC Kickstarter Campaign Begins

It’d be nice to learn more about the auto-calibration feature. It looks like 
only the diameter of the head is monitored.
—
Marc

> On Feb 23, 2016, at 10:48 PM, len moskowitz  
> wrote:
>
> OSSIC (formerly Sonic VR) has designed prototypes of headphones that do 
> automatic HRTF calculation and headtracking. They will support ambisonics 
> (They have a TetraMic system.)
>
>
> They are seeking development and production funding on Kickstarter:
>
>
>
> https://www.kickstarter.com/projects/248983394/ossic-x-the-first-3d-audio-headphones-calibrated-t
>
>
> They sought to raise $100,000 in 60 days. They've already raised over 
> $340,000 in less than three.
>
>
> Len Moskowitz (mosko...@core-sound.com)
> Core Sound LLC
> www.core-sound.com
> Home of TetraMic

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Re: [Sursound] OSSIC Kickstarter Campaign Begins

[Marc Lavallée]

It’d be nice to learn more about the auto-calibration feature. It looks like 
only the diameter of the head is monitored.
—
Marc

> On Feb 23, 2016, at 10:48 PM, len moskowitz  
> wrote:
> 
> OSSIC (formerly Sonic VR) has designed prototypes of headphones that do 
> automatic HRTF calculation and headtracking. They will support ambisonics 
> (They have a TetraMic system.)
> 
> 
> They are seeking development and production funding on Kickstarter:
> 
> 
>
> https://www.kickstarter.com/projects/248983394/ossic-x-the-first-3d-audio-headphones-calibrated-t
> 
> 
> They sought to raise $100,000 in 60 days. They've already raised over 
> $340,000 in less than three.
> 
> 
> Len Moskowitz (mosko...@core-sound.com)
> Core Sound LLC
> www.core-sound.com
> Home of TetraMic

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[Sursound] OSSIC Kickstarter Campaign Begins

[len moskowitz]

OSSIC (formerly Sonic VR) has designed prototypes of headphones that do 
automatic HRTF calculation and headtracking. They will support 
ambisonics (They have a TetraMic system.)



They are seeking development and production funding on Kickstarter:


  
 https://www.kickstarter.com/projects/248983394/ossic-x-the-first-3d-audio-headphones-calibrated-t



They sought to raise $100,000 in 60 days. They've already raised over 
$340,000 in less than three.



Len Moskowitz (mosko...@core-sound.com)
Core Sound LLC
www.core-sound.com
Home of TetraMic
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Re: [Sursound] Ambisonic Decoder Design Resources

[Fernando Lopez-Lezcano]

On 02/20/2016 09:58 AM, Jörn Nettingsmeier wrote:

On 02/20/2016 06:22 PM, Richard Graham wrote:

Hi Archontis,

...

Most importantly, I’d like to figure out how to calculate these
coefficients myself and I am having trouble finding literature on
how to do that. I have reached out to a few folks who used their own
programs to calculate coefficients. Essentially, I’d like to build
my own program in the C programming language.


Aaron Heller has a Matlab/Octave toolkit out that will generate matrices
for you, and it's completely open. But it relies on quite complex
functions of the framework... His solutions are used at CCRMA, to
great effect. Probably your best starting point.


ADT (Ambisonics Decoder Toolkit) can actually generate full proper 
decoders in Faust, which can then be compiled to pretty much anything - 
including straight C... I have been using Slepian style 3D decoders for 
our 12 + 8 + 4 + 1 setup compiled into SuperCollider UGens which are 
then incorporated into our custom diffusion system. Works very well, if 
I may say...


-- Fernando



Richard has one but keeps it proprietary, Fons has one but also doesn't
like to part with it (although he has been very generous about
generating custom Ambdec setups for people, me included).

For the nitty-gritty, check out the papers from recent Ambisonics
symposia and the ICSA conferences. Talk to Thomas Musil from Graz for
the old-school, lovingly hand-optimized matrix approach, or to Zotter et
al. for the All-Rad approach that works for arbitrary setups but is
quite complex and kind of brute-forceish. I can dig them up for you if
you can't find them.


Shortly, I will have access to a 16-channel ring on the horizontal
plane and a b-format cube. This system will be modular and
configurable into irregular setups, too.


nice! but unless you really need extremely high horizontal resolution
for research purposes or a truly humongous listening area, a better use
for all those speakers would be to make a more or less uniform 3D rig.
gets you a nice dodecahedron for full third-order all around.


best,


jörn





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Re: [Sursound] Ambisonic Decoder Design Resources

[Richard Graham]

Folks, many thanks for all these incredibly helpful resources.
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Re: [Sursound] Different usages, different spaces, different decoders?

[Marc Lavallee]

On Tue, 23 Feb 2016 17:21:06 +0100
Jörn Nettingsmeier  wrote:

> On 02/22/2016 09:28 PM, Martin Leese wrote:
> > Peter Lennox wrote:
> >  
> >>   Following on from discussions of decoder solutions: Forgive me
> >> if I've missed this (I've been watching sursound for about 20
> >> years, or so - but I just may have missed the odd discussion!)
> >>
> >> Has anyone systematically studied the interactions between
> >> decoders, speaker layouts and particular rooms?  
> >
> > Dermot Furlong looked at the last two in the
> > early 1990s.  He made a lengthy post to
> > "sursound" in June 1996 describing his work.
> > This post used to be available in my area on
> > the Ambisonia.com site, but it seems to have
> > been deleted.  I still have the files, but am not
> > sure of the best way for making them available.  
> 
> I would very much like to have that post. It could be made available
> on the internet somewhere, and if it is still relevant in the light
> of recent decoding techniques, used as a reference on the wikipedia
> page on ambisonic listening rigs.

I can add it on ambisonia.com, in the area for Martin Leese; I
already asked him.
--
Marc
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Re: [Sursound] Different usages, different spaces, different decoders?

[Jörn Nettingsmeier]

On 02/22/2016 09:28 PM, Martin Leese wrote:

Peter Lennox wrote:


  Following on from discussions of decoder solutions: Forgive me if I've
missed this (I've been watching sursound for about 20 years, or so - but I
just may have missed the odd discussion!)

Has anyone systematically studied the interactions between decoders, speaker
layouts and particular rooms?


Dermot Furlong looked at the last two in the
early 1990s.  He made a lengthy post to
"sursound" in June 1996 describing his work.
This post used to be available in my area on
the Ambisonia.com site, but it seems to have
been deleted.  I still have the files, but am not
sure of the best way for making them available.


I would very much like to have that post. It could be made available on 
the internet somewhere, and if it is still relevant in the light of 
recent decoding techniques, used as a reference on the wikipedia page on 
ambisonic listening rigs.



--
Jörn Nettingsmeier
Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487

Meister für Veranstaltungstechnik (Bühne/Studio)
Tonmeister VDT

http://stackingdwarves.net

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Re: [Sursound] Wireless Solutions for Binaural Event

[Dave Malham]

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> > > >> --
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> > > >> As of 1st October 2012, I have retired from the University.
> > > >>
> > > >> These are my own views and may or may not be shared by the
> University
> > > >>
> > > >> Dave Malham
> > > >> Honorary Fellow, Department of Music
> > > >> The University of York
> > > >> York YO10 5DD
> > > >> UK
> > > >>
> > > >> 'Ambisonics - Component Imaging for Audio'
> > > >>
> > > >
> > > >
> > > >
> > > > --
> > > >
> > > > As of 1st October 2012, I have retired from the University.
> > > >
> > > > These are my own views and may or may not be shared by the University
> > > >
> > > > Dave Malham
> > > > Honorary Fellow, Department of Music
> > > > The University of York
> > > > York YO10 5DD
> > > > UK
> > > >
> > > > 'Ambisonics - Component Imaging for Audio'
> > > >
> > >
> > >
> > >
> > > --
> > >
> > > As of 1st October 2012, I have retired from the University.
> > >
> > > These are my own views and may or may not be shared by the University
> > >
> > > Dave Malham
> > > Honorary Fellow, Department of Music
> > > The University of York
> > > York YO10 5DD
> > > UK
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-- 

As of 1st October 2012, I have retired from the University.

These are my own views and may or may not be shared by the University

Dave Malham
Honorary Fellow, Department of Music
The University of York
York YO10 5DD
UK

'Ambisonics - Component Imaging for Audio'
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Re: [Sursound] [allowed] Re: LaMonte Young - Just Charles & 'Cello in The Romantic Chord

[Paul Hodges]

--On 23 February 2016 00:27 + Gerard Lardner 
wrote:

> It does work; I'm listening to it (wierd sound!)

It's only the first few minutes, though.  I have the whole two hours as
Flac files.

Paul

-- 
Paul Hodges

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Re: [Sursound] Wireless Solutions for Binaural Event

[Augustine Leudar]

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> > > >>
> > > >>
> > > >> --
> > > >>
> > > >> As of 1st October 2012, I have retired from the University.
> > > >>
> > > >> These are my own views and may or may not be shared by the
> University
> > > >>
> > > >> Dave Malham
> > > >> Honorary Fellow, Department of Music
> > > >> The University of York
> > > >> York YO10 5DD
> > > >> UK
> > > >>
> > > >> 'Ambisonics - Component Imaging for Audio'
> > > >>
> > > >
> > > >
> > > >
> > > > --
> > > >
> > > > As of 1st October 2012, I have retired from the University.
> > > >
> > > > These are my own views and may or may not be shared by the University
> > > >
> > > > Dave Malham
> > > > Honorary Fellow, Department of Music
> > > > The University of York
> > > > York YO10 5DD
> > > > UK
> > > >
> > > > 'Ambisonics - Component Imaging for Audio'
> > > >
> > >
> > >
> > >
> > > --
> > >
> > > As of 1st October 2012, I have retired from the University.
> > >
> > > These are my own views and may or may not be shared by the University
> > >
> > > Dave Malham
> > > Honorary Fellow, Department of Music
> > > The University of York
> > > York YO10 5DD
> > > UK
> > >
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