I have decided to simplify the DIY head tracking dongle build and setup in
some aspects, now I have ordered this sensor that do not need initial
calibration.
This is the new sensor module:
https://learn.adafruit.com/adafruit-neopixel-uberguide/overview
It will initially be combined with a esp8266
elepac.pt>
Sent: Sunday, January 31, 2016 1:28 AM
To: rica...@justnet.com.au<mailto:rica...@justnet.com.au>; Surround Sound
discussion group<mailto:sursound@music.vt.edu>
Cc: Aaron Heller<mailto:hel...@ai.sri.com>
Subject: Re: [Sursound] Never do math in public, or my take on ex
https://www.google.se/url?sa=t&source=web&rct=j&url=https://notendur.hi.is/~spagnols/pubbl/ICSV_2015.pdf&ved=0ahUKEwj-se-KwtLKAhUFwHIKHYX6CWAQFgg1MAk&usg=AFQjCNHQlgAIQgBkfCsP-bA8Vop-ww0wYg&sig2=lrdagh2wB-trUTu6EJr7aA
These guys have almost certainly the knowledge in how to create a head
tracking c
http://multi-science.atypon.com/doi/abs/10.1260/1351-010X.18.1-2.227#/doi/abs/10.1260/1351-010X.18.1-2.207
These are are relevant From my point of view for head above torso impact.
If this could be included in head tracked conversion for FOA to binaural, I
think it would improve it. One way would
A paper on the importance of shoulder reflections and torso diffraction in
lower frequencies for elevation cues.
Sadly no data for impact of torso turning in relation to the head.
https://www.google.se/url?sa=t&source=web&rct=j&url=http://interface.cipic.ucdavis.edu/pubs/ICASSP_Mar_1999.pdf&ved=0a
Richard Lee wrote:
Just to bring everyone down to earth ..
There are two easily reproduced experiments first carried out by
prominent members of this group which put these effects into
perspective. They are the
Greene/Lee Neckbrace
and
Malham/Van Gogh Experiment
The first shows 'real
Stefan Schreiber wrote:
Richard Lee wrote:
Just to bring everyone down to earth ..
There are two easily reproduced experiments first carried out by
prominent members of this group which put these effects into
perspective. They are the
Greene/Lee Neckbrace
and
Malham/Van Gogh Experiment
Richard Lee wrote:
Just to bring everyone down to earth ..
There are two easily reproduced experiments first carried out by prominent
members of this group which put these effects into perspective. They are
the
Greene/Lee Neckbrace
and
Malham/Van Gogh Experiment
The first shows 'real life
Richard Furse wrote:
Interesting thread!
At the risk of accusations of marketing (the shame, the shame!)*, I thought I'd provide a few details on how Blue Ripple Sound approaches binaural HOA decoders.
There are certainly no marketing issues here, especially since this
thread has started wit
After reading lots views
Oh my dear, this reads like a Russian to German to English
translation... Probably my brain is still recovering from some alcohol
intoxication suffered at a certain point during my childhood, which I
even can't remember because of the usual mechanisms of psychologica
Richard Lee wrote:
Just to bring everyone down to earth ..
There are two easily reproduced experiments first carried out by prominent
members of this group which put these effects into perspective. They are
the
Greene/Lee Neckbrace
and
Malham/Van Gogh Experiment
The first shows 'real life
Sent: Friday, January 29, 2016 5:39 PM
To: 'Surround Sound discussion group'<mailto:sursound@music.vt.edu>
Subject: Re: [Sursound] Never do math in public, or my take on explaining
B-format to binaural
Just to bring everyone down to earth ..
There are two easily reproduced expe
> On 30 Jan 2016, at 00:05, Richard Lee wrote:
>
> Just to bring everyone down to earth ..
>
> There are two easily reproduced experiments first carried out by prominent
> members of this group which put these effects into perspective. They are
> the
>
> Greene/Lee Neckbrace
> and
> Malham/V
Interesting thread!
At the risk of accusations of marketing (the shame, the shame!)*, I thought I'd
provide a few details on how Blue Ripple Sound approaches binaural HOA
decoders. We DO use an approach which shares quite a bit with Archontis'
suggestions. I prefer this to the "virtual speaker"
Just to bring everyone down to earth ..
There are two easily reproduced experiments first carried out by prominent
members of this group which put these effects into perspective. They are
the
Greene/Lee Neckbrace
and
Malham/Van Gogh Experiment
The first shows 'real life' Fixed Head Localisati
HI Bo-Erik,
Sorry I wasn’t very clear on my comments about the HRTF order, Jörn covered it
much better!
You need very high orders if you want to preserve HRTFs as they are when you
measure them, and the order that you can expand them depends on how many points
you measure them around the head.
On 01/28/2016 10:12 PM, Bo-Erik Sandholm wrote:
I do understand that HOA can represent resolution of directivity in the
mathematic domain better than FOA.
But I am starting to suspect we are overworking something when we are
talking of order 8 to 15?
talking about using order 15 to retain the f
@music.vt.edu] on behalf of Fons
> Adriaensen [f...@linuxaudio.org]
> Sent: 27 January 2016 23:58
> To: sursound@music.vt.edu
> Subject: Re: [Sursound] Never do math in public, or my take on explaining
> B-format to binaural
>
> > plus independent decorators/reverberators pe
> Subject: Re: [Sursound] Never do math in public, or my take on explaining
> B-format to binaural
>
> > plus independent decorators/reverberators per HOA channel,
> > with different decays at different frequencies, for the
> > late part. The late part filters require a
Hi Fons,
___
From: Sursound [sursound-boun...@music.vt.edu] on behalf of Fons Adriaensen
[f...@linuxaudio.org]
Sent: 27 January 2016 23:58
To: sursound@music.vt.edu
Subject: Re: [Sursound] Never do math in public, or my take on explaining
B-format to binaural
>
>
>
>> From: Sursound [sursound-boun...@music.vt.edu] on behalf of Jörn
>> Nettingsmeier [netti...@stackingdwarves.net]
>> Sent: 26 January 2016 22:52
>> To: sursound@music.vt.edu
>> Subject: [Sursound] Never do ma
Marc Lavallée wrote:
Free documents from Rozenn Nicol:
https://tel.archives-ouvertes.fr/tel-01066312/
http://www.sga-ssa.ch/docs/events/120510_ssa_printemps2012_01-nicol.pdf
Great links. Many thanks!
The "Spectral Cue" (SC) concept - referring to localization in the
median plane - seems t
From: Sursound [sursound-boun...@music.vt.edu] on behalf of Jörn Nettingsmeier
[netti...@stackingdwarves.net]
Sent: 26 January 2016 22:52
To: sursound@music.vt.edu
Subject: [Sursound] Never do math in public, or my take on explaining B-format
to binaural
I think the 8 impulses are used dif
On Wed, Jan 27, 2016 at 01:27:59PM +, Politis Archontis wrote:
> Something that has worked well for me is to replace the
> (unmeasurable) low frequency HRTF with the response of a
> spherical head model, ...
The LF part can be even be formed directly from W and
a first order highpass filtere
Free documents from Rozenn Nicol:
https://tel.archives-ouvertes.fr/tel-01066312/
http://www.sga-ssa.ch/docs/events/120510_ssa_printemps2012_01-nicol.pdf
Le Wed, 27 Jan 2016 13:47:21 +0100,
Jörn Nettingsmeier a écrit :
> On 01/27/2016 10:02 AM, florian.came...@orf.at wrote:
> > Hello,
> >
> > m
Hi Fons,
these are great points you raise here!
On 27 Jan 2016, at 00:13, Fons Adriaensen
mailto:f...@linuxaudio.org>> wrote:
I've been reading this thread with much interest, as it is exactly
about the topic I've been working on for the last two months.
* Most HRIR sets have an LF response
On 01/26/2016 11:05 PM, Politis Archontis wrote:
Hi Jorn,
yes that is correct. I think however that the virtual loudspeaker
stage is unnecessary. It is equivalent if you expand the left and
right HRTFs into spherical harmonics and multiply their coefficients
(in the frequency domain) directly wi
On 01/27/2016 10:02 AM, florian.came...@orf.at wrote:
Hello,
may I point you to the AES Monograph on Binaural Technology by Rozenn Nicol,
published on 2010. Rozenn has nicely summarised most of the issues which have
been discussed
here lately, and she provides an extensive list of references (m
HI,
yes there are multiple works from many reearchers on spherical harmonic
expansion of HRTFs (Evans, Duraiswami, Dylan Menzies and others), Rozenn
Nicol’s is a very thorough one, and the last (probably) on the list are two
nice papers from Romigh and Brungart in IEEE’s Journal of Selected Top
As Fons have done optimisations in the low frequency range up to a few
hundred hertz resulting resulting in shorter HRIRs.
Any comment on the possibility of ignoring the individual impact is of ear
shape above 4kHz in a HRTF?
Would that not also simplify coding to binaural? Or at least simplifying
Hello,
may I point you to the AES Monograph on Binaural Technology by Rozenn Nicol,
published on 2010. Rozenn has nicely summarised most of the issues which have
been discussed
here lately, and she provides an extensive list of references (more than 200!).
Well worth reading
(35$ for AES members
A student, Mike (?) Evans, of colleagues of mine from the Department of
Electronics at York did some work on a spherical harmonic representation of
HRTF's back in the 1990's. I haven't got the paper handy but I seem to
remember he ended up concluding you'd need something like 15'th order to
get the
Hi Fons,
I think I see your point, but I still believe they are equivalent in any case?
In the end by having a lower-order sound field recording (eg B-format), than
the expansion order of the HRTFs at some frequency, the spatial product is
going to be limited by the sound-field order. If there
On Tue, Jan 26, 2016 at 10:05:07PM +, Politis Archontis wrote:
> yes that is correct. I think however that the virtual loudspeaker
> stage is unnecessary. It is equivalent if you expand the left and
> right HRTFs into spherical harmonics ...
True, but the problem with this is that it requires
On Tue, Jan 26, 2016 at 09:52:21PM +0100, Jörn Nettingsmeier wrote:
> On 01/26/2016 06:36 PM, Stefan Schreiber wrote:
>
> >2. < 8 > impulses (for 4 virtual speakers) implies that you don't
> >support 3D decoders (?). If not, why this? (Immersive/3D audio is on the
> >requirement list for VR. It w
s.net]
Sent: 26 January 2016 22:52
To: sursound@music.vt.edu
Subject: [Sursound] Never do math in public, or my take on explaining B-format
to binaural
I think the 8 impulses are used differently. I'm scared of trying to
explain something of which my own understanding is somewhat hazy, but
he
Hello Jörn,
On Tue, Jan 26, 2016 at 12:52 PM, Jörn Nettingsmeier <
netti...@stackingdwarves.net> wrote:
>
> Of course, that does not take into account dual-band decoding. But if we
> express the cross-over filters as another convolution and split the
> decoding matrix into a hf and lf part, we ca
On 01/26/2016 06:36 PM, Stefan Schreiber wrote:
2. < 8 > impulses (for 4 virtual speakers) implies that you don't
support 3D decoders (?). If not, why this? (Immersive/3D audio is on the
requirement list for VR. It wouldn't make a lot of sense if all sound
sources will follow your gaze - looking
38 matches
Mail list logo
