Re: [Sursound] Renting a TetraMic or other ambisonic mic

2016-01-24 Thread John Leonard
Yep, that’s a bigger ship alright. There looks to be a pretty good mounting point on the bow, in which case my major concern would be structure/cable-borne vibration. I’ve recorded on a couple of large vessels, especially to capture the throbbing drone that they make: handheld works well to all

Re: [Sursound] Sennheiser Easy 3D Recording and Modeling

2016-01-24 Thread Stefan Schreiber
Jörn Nettingsmeier wrote: On 01/06/2016 06:36 PM, Courville, Daniel wrote: « Sennheiser realizes that content is king and that for any new technology to gain traction, it must be easy to develop in. Sennheiser is therefore looking to help content creators take advantage of their 3D audio platf

Re: [Sursound] Sennheiser Easy 3D Recording and Modeling

2016-01-24 Thread Stefan Schreiber
(Sorry, 2nd posting should look better...) Jörn Nettingsmeier wrote: On 01/06/2016 06:36 PM, Courville, Daniel wrote: « Sennheiser realizes that content is king and that for any new technology to gain traction, it must be easy to develop in. Sennheiser is therefore looking to help content cre

[Sursound] How to derive a good "universal" HRTF data set?

2016-01-24 Thread Stefan Schreiber
http://www.blueripplesound.com/hrtf-amber The IRCAM AKG "Listen" HRTF data contains measured HRTFs from about 50 different people - this must have taken a lot of effort and we're very grateful to the good folk of IRCAM for doing the work and making the results available to the world! What we'v

Re: [Sursound] How to derive a good "universal" HRTF data set?

2016-01-24 Thread Augustine Leudar
er HRTF itself is derived from IRCAM AKG "Listen" HRTF data, a public > available list. And even IRCAM should be interested to provide a good > universal HRTF based on its own and public HRTF research!) > ___ > Sursound

Re: [Sursound] How to derive a good "universal" HRTF data set?

2016-01-24 Thread Augustine Leudar
data, a public >> available list. And even IRCAM should be interested to provide a good >> universal HRTF based on its own and public HRTF research!) >> ___ >> Sursound mailing list >> Sursound@music.vt.edu >> https

Re: [Sursound] Renting a TetraMic or other ambisonic mic

2016-01-24 Thread Billy Wirasnik
llyWirasnik.com <http://BillyWirasnik.com>* 845-417-8290 ------ next part -- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20160124/4c5e036b/attachment.html> __

Re: [Sursound] How to derive a good "universal" HRTF data set?

2016-01-24 Thread Marc Lavallée
The LISTEN set from IRCAM, the KEMAR set from MIT and the spherical set by R. Duda are included in the Ambisonic Toolkit. I use them on http://ambisonic.xyz/ . The spherical set is probably a good enough compromise for VR applications, because perfection is not required for a good experience. What

Re: [Sursound] How to derive a good "universal" HRTF data set?

2016-01-24 Thread Stefan Schreiber
Augustine Leudar wrote: In reply to your original question - I believe there are available data sets for Kemar head measurements - not quite what you asking for but it is supposed to be an "average" head http://sound.media.mit.edu/resources/KEMAR.html I was aware of the fact that dummy head

Re: [Sursound] How to derive a good "universal" HRTF data set?

2016-01-24 Thread Stefan Schreiber
Marc Lavallée wrote: The LISTEN set from IRCAM, the KEMAR set from MIT and the spherical set by R. Duda are included in the Ambisonic Toolkit. I use them on http://ambisonic.xyz/ . The spherical set is probably a good enough compromise for VR applications, because perfection is not required for

Re: [Sursound] How to derive a good "universal" HRTF data set?

2016-01-24 Thread Marc Lavallée
On Sun, 24 Jan 2016 21:00:37 +, Stefan Schreiber wrote : > Should we "normalize" anthropometric data or (measured) HRTF data > sets? That would discriminate potential users at the sides of the normal curve... There could be a way to find a "best match" from sets of measured heads, maybe usi

Re: [Sursound] How to derive a good "universal" HRTF data set?

2016-01-24 Thread Marc Lavallée
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 Ge

Re: [Sursound] How to derive a good "universal" HRTF data set?

2016-01-24 Thread Stefan Schreiber
Marc Lavallée wrote: On Sun, 24 Jan 2016 21:00:37 +, Stefan Schreiber wrote : Should we "normalize" anthropometric data or (measured) HRTF data sets? That would discriminate potential users at the sides of the normal curve... There could be a way to find a "best match" from set

Re: [Sursound] How to derive a good "universal" HRTF data set?

2016-01-24 Thread Marc Lavallée
You are right, the SOFA effort is important. Here I see that many more data sets are available now: http://www.sofaconventions.org/mediawiki/index.php/Files I suspect that there will be many different solutions based of the available sets. I don't think there could be a "universal" or optimal HR

Re: [Sursound] How to derive a good "universal" HRTF data set?

2016-01-24 Thread Stefan Schreiber
Marc Lavallée wrote: The LISTEN set from IRCAM, the KEMAR set from MIT and the spherical set by R. Duda are included in the Ambisonic Toolkit. I use them on http://ambisonic.xyz/ . The spherical set is probably a good enough compromise for VR applications, because perfection is not required for

Re: [Sursound] How to derive a good "universal" HRTF data set?

2016-01-24 Thread Marc Lavallée
On Sun, 24 Jan 2016 23:57:37 +, Stefan Schreiber wrote : > Marc, just some idea: > > If the ATK includes different HRTF sets, doesn't it already provide > an open interface/standard for exchangeable HRTF data? ATK provides HRTF data as wav files, ready to be used with convolvers. It a "read

Re: [Sursound] How to derive a good "universal" HRTF data set?

2016-01-24 Thread Stefan Schreiber
Marc Lavallée wrote: Formats like 5.1 to 22.2 are application specific, so I think they should not be part of a standard. No, but any 5.1 to binaural decoder (application, as you say) would have to use some HRTF data brought into some specific shape/format. You would have to match loudspea

Re: [Sursound] How to derive a good "universal" HRTF data set?

2016-01-24 Thread Augustine Leudar
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 th

Re: [Sursound] How to derive a good "universal" HRTF data set?

2016-01-24 Thread Marc Lavallée
On Mon, 25 Jan 2016 01:04:30 +, Stefan Schreiber wrote : > >ATK provides HRTF data as wav files, ready to be used with > >convolvers. It a "ready to use" application specific format. > > > In which (angular) resolution, etc.? Azimuth/elevation resolution? The wav files are impulse response f