Theyd still have to somehow measure the pinna dimensions though - which is
the most important part for vertical localisation - without that it wont
work with just shoulder reflections and headwidth.......

On 24 February 2016 at 10:33, Corentin Guézénoc <c.gueze...@3dsoundlabs.com>
wrote:

> Based on what I had gathered from some video some time ago, my guess is
> that they use some kind of HRTF model that takes into account the user's
> head width, combined with the 4-driver system.  I guess the first would act
> mostly on low frequencies and the latter on higher frequencies that would
> be harder to model. However the last part is only a guess which I'm not
> sure about.
>
> Corentin
>
>
>
> Le 24/02/2016 11:22, Augustine Leudar a écrit :
>
>> Umashankar - so you'd imitate ILDs and ITDs ? From what Ive read shoulder
>> reflections play an important role as well as the shape of the head - so
>> Im
>> not sure if Pinna reflections would be enough ?
>>
>> On 24 February 2016 at 10:19, Augustine Leudar <augustineleu...@gmail.com
>> >
>> wrote:
>>
>> Yes it would be nice to know how exactly (or at least roughly if you dont
>>> want to give your game away) the headphones take personalised HRTFs ....
>>>
>>> On 24 February 2016 at 07:33, umashankar manthravadi <
>>> umasha...@hotmail.com> wrote:
>>>
>>> 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<https://go.microsoft.com/fwlink/?LinkId=550986> for
>>>> Windows 10
>>>>
>>>> From: Marc Lavallée<mailto:m...@hacklava.net>
>>>> Sent: Wednesday, February 24, 2016 9:28 AM
>>>> To: Surround Sound discussion group<mailto:sursound@music.vt.edu>
>>>> 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 <lenmoskow...@optonline.net
>>>>> >
>>>>>
>>>> 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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>>>
>>> --
>>> www.augustineleudar.com
>>>
>>>
>>
>>
> --
> *Corentin Guézénoc *
> /R&D Engineer
> 3D Sound Labs /
> Tel: +33 6 82 12 14 60
>
>
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