Hi Augustine,
Whilst it is generally said that that our angular acuity is better
on the horizontal plane, this way of expressing things is, frankly, a
snare and a delusion since it only applies when the head is upright.
Unless your listeners are restrained using something like the infamous
Green-Lee neck brace they will be able to move and change the
orientation of their heads so the direction of maximum acuity can be
essentially anywhere. So, if it is remotely possible, the rig should
be as homogeneous as possible in all directions. The other thing to
beware of is the difficulty of retaining equi-loudness in all panned
directions with uneven speaker rigs.
Dave
On 11 July 2013 10:15, Augustine Leudar <augustineleu...@gmail.com> wrote:
> Hi Eero,
> Al revers amigo. I dont know how it works with ambisonics and soundfield
> reconstruction but basically generally speaking your ears cant tell the
> difference if a speaker directly overhead is half a metre this way or the
> other - in effect your ears have lower resolution straight above so extra
> speakers are just wasted as you cant hear the difference anyway- conversley
> where your ears have good localisation you need more speakers as your ears
> are less easily fooled . This resulted in several speakers in the sonic lab
> at the sonic arts research centre being removed overhead as listening tests
> showed they were making little difference to the listener experience.
> Unless I was taught wrong - In which case Im all ears (pun not intended)
>
> On 11 July 2013 10:34, Eero Aro <eero....@dlc.fi> wrote:
>
>> I must confess that I don't know much about what you are discussing
>> about, but I think I read in one of the posts (that I already have deleted)
>> that "there is no need to place a lot of speakers directly above, as our
>> localization is at it's worst in that direction".
>>
>> However, I have always thought that you need _more_ speakers (with
>> smaller angles) in those directions where the hearing localization of
>> phantom
>> images is not very good. You don't need as many speakers in those
>> directions
>> where the localization of phantom images is good. In front of the listener
>> on the
>> horizontal plane two speakers at an angle of 60 degrees is good for most
>> people.
>> Elsewhere you need more.
>>
>> This of course applies to when the listener's head is not moving.
>>
>> Just ask Thomas Chen.
>>
>> Eero
>>
>> ______________________________**_________________
>> Sursound mailing list
>> Sursound@music.vt.edu
>> https://mail.music.vt.edu/**mailman/listinfo/sursound<https://mail.music.vt.edu/mailman/listinfo/sursound>
>>
>
>
>
> --
> 07580951119
>
> augustine.leudar.com
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL:
> <https://mail.music.vt.edu/mailman/private/sursound/attachments/20130711/c0d83a94/attachment.html>
> _______________________________________________
> Sursound mailing list
> Sursound@music.vt.edu
> https://mail.music.vt.edu/mailman/listinfo/sursound
--
--
As of 1st October 2012, I have retired from the University.
These are my own views and may or may not be shared by the University
Dave Malham
Honorary Fellow, Department of Music
The University of York
York YO10 5DD
UK
'Ambisonics - Component Imaging for Audio'
_______________________________________________
Sursound mailing list
Sursound@music.vt.edu
https://mail.music.vt.edu/mailman/listinfo/sursound
