Augustine Leudar wrote:
As far as I know the Kemar head is the average human head shape taken from
thousands of measurments - http://kemar.us/ Im not quite sure why an HRTF
from a Kemar head would be less desirable than averaging of 50 seperate
head measurements in real human head. I dont know how well Kemar averages
the delicate folds of the Pinna though.....
Interesting thoughts...
It could be very well that HRTFs correspond (in a rough form) to some
simple anthropometric features, such as head size ("sphere diameter"),
ear distance etc. You could argue that ITD and ILD values would depend
on these parameters in a pretty linear form.
The pinna influence on HRTFs should be more chaotic, in my view.
(Resonances and "shadows", for example.)
In any case a binaural decoder has to use HRTFs, which will depend on
anthropometric features - but in a complicated way. It is therefore a
better approach to average a HRTF base (like Amber HRTF does), and not
to average across some anthropometric base (KEMAR mannequin).
In the end you could compare Amber HRTFs (or similarily derived
universal HRTF sets...) directly to KEMAR HRTFs, in practical
performance tests.
For the reasons given I would assume that MIT's KEMAR model (as a <
generic reference model >) is finally beaten.
Best regards,
Stefan
P.S.: The only thing missing is now to present some form of (Open
Source) Amber HRTF set.
See 1st thread posting...
On 24 January 2016 at 21:47, Marc Lavallée <m...@hacklava.net> wrote:
Le Sun, 24 Jan 2016 16:35:03 -0500,I wrote:
There could be a way to find a "best match" from sets of measured
heads, maybe using 3D scanning, or with simple measurements. For
example, the spherical HRTF model have different diameters, which is a
good start.
There's a paper on "Rapid Generation of Personalized HRTFs" :
http://www.aes.org/e-lib/browse.cfm?elib=17365
A quick googling on "hrtf 3d scanning" returns more interesting results:
http://www.technologyreview.com/news/527826/microsofts-3-d-audio-gives-virtual-objects-a-voice/
http://dsp.eng.fiu.edu/HRTFDB/main.htm
http://www.mirlab.org/conference_papers/International_Conference/ICASSP%202010/pdfs/0000169.pdf
http://www.computer.org/csdl/proceedings/icisce/2015/6850/00/6850a225.pdf
https://hal.inria.fr/inria-00606814/document
http://www-users.york.ac.uk/~ait1/head.htm
--
Marc
_______________________________________________
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.
_______________________________________________
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.
