umashankar manthravadi wrote:
when you have four speakers to each ear, you can think of a decode to a cube.
The multiple driver model shown on OSSIC's presentation page
(https://www.kickstarter.com/projects/248983394/ossic-x-the-first-3d-audio-headphones-calibrated-t)
does < not > correspond to a cube layout!
You seem to have an up/front/back/down driver model.
The drivers's are obviously in near-field distance, so a head/torso
filter would have to be applied be4...
The only big difference between a cube mounted at a distance and this would be
the importance of the head shadow. If you can cancel head movement (which
headtracking does) it is very similar to listening to a cube of speakers in a
room.
No, because this would require < BRIR > measurements...
there are some details of course. You do not need individual HRTFs.
It seems to be pretty unclear how OSSIC < combines > HRTFs and a
multi-driver headphone.
Their personalisation process seems to measure (just) the ear-distance.
Important but not enough?
Uncomplete information everywhere...
I personally would prefer conventional headphones, HT and properly done
personalisation. (Products like BRS or Smyth Research's Realiser A8 are
available for the professional and audiophile markets. They work very
well and are not based on multi-driver concepts. Their Polhemnus etc.
trackers could be replaced with much cheaper motion sensors, by now.
"Properly done personalisation" is still a trickier problem.)
Best,
Stefan
I am not sure what different head sizes will do. If the foam support compresses
(and the distance to the drivers is fixed) it may not matter.
umashankar
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
From: Steven Boardman<mailto:boardroomout...@gmail.com>
Sent: Wednesday, February 24, 2016 5:20 PM
To: Surround Sound discussion group<mailto:sursound@music.vt.edu>
Subject: Re: [Sursound] OSSIC Kickstarter Campaign Begins
Not sure they would. As they are over the ear headphones, one doesn’t need
pinna HRTF as ones own would function.
They probably made HRTF files for each driver position. That way your own pinna
effects would function.
Steve
On 24 Feb 2016, at 11:30, Augustine Leudar <augustineleu...@gmail.com> wrote:
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
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