Curvature could give you info on the size of the object as well ..... On 24 January 2018 at 02:45, Augustine Leudar <augustineleu...@gmail.com> wrote:
> Hi Stefan - > Im aware of the role of ILDs and ITDs at close distances - but I couldnt > find any papers on the curvature being a cue at very close distances though > - be interested to read some - have you got any links ? > > On 24 January 2018 at 02:12, <st...@mail.telepac.pt> wrote: > >> Citando Augustine Leudar <augustineleu...@gmail.com>: >> >> Hi Jack, >>> >>> Aside from ILDs, ITDs, I also wondered if the pinna was able to >>> distinguish >>> >>> very close sound sources due to the fact the wavefront would be much >>> more >>> >>> curved almost spherical to the degree that it would be different >>> pressure >>> >>> present at different folds of the pinna (ie very close up sound slike >>> a >>> >>> mosquito) . I dont think theres been much done on that... >>> >> >> Hi Augustine, >> >> I think "there has been done quite a lot on that"... 😉 >> >> (Reproduction of near-field audio sources) >> >> Beside of spherical waves (and their consequences) we should not overlook >> that any high-frequency emitting (annoying) mosquito next to your left ear >> would be heard much softer at your right ear, the head shadow being even >> more relevant at close distances. >> >> BR >> >> Stefan >> >> P.S.: It is important to know about the "depth" of a mosquito audio >> object relative to your head, both in VR and in real life... >> >> On 23 January 2018 at 11:58, jack reynolds <jackreynolds...@gmail.com> >>> >>> wrote: >>> >>> It looks like a method for binaural rendering with multiple distance >>>> HRTFs. >>>> >>>> >>>> >>>> Ambisonics could be one of the inputs, but it seems to be aimed more at >>>> >>>> object based virtual reality, where the listener is more likely to come >>>> >>>> very close to an audio source. >>>> >>>> >>>> >>>> Most HRTFs are currently measured at 1m distance, so any objects closer >>>> >>>> than 1m are not currently rendered correctly. >>>> >>>> >>>> >>>> Far field HRTFs are closer to plane waves, whereas close up audio >>>> objects >>>> >>>> emit more spherical waves, creating greater differences in interaural >>>> time >>>> >>>> difference (ITD). >>>> >>>> >>>> >>>> Jack >>>> >>>> >>>> >>>> On 23 January 2018 at 11:18, Bearcat Şándor <bearcatsan...@gmail.com> >>>> >>>> wrote: >>>> >>>> >>>> >>>> I don't know a lot about patent law, but is this an attempt to tie up >>>> our >>>> >>>> beloved Ambisonics? >>>> >>>> >>>> >>>> http://www.freepatentsonline.com/y2017/0366912.html >>>> >>>> >>>> >>>> .... >>>> >>> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: <https://mail.music.vt.edu/mailman/private/sursound/attachme >> nts/20180124/16ff3135/attachment.html> >> >> _______________________________________________ >> 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. >> > > > > -- > Dr. Augustine Leudar > Artistic Director Magik Door LTD > Company Number : NI635217 > Registered 63 Ballycoan rd, > Belfast BT88LL > > -- Dr. Augustine Leudar Artistic Director Magik Door LTD Company Number : NI635217 Registered 63 Ballycoan rd, Belfast BT88LL -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20180124/a95766c8/attachment.html> _______________________________________________ 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.
