naturerecordists
[Top] [All Lists]

Re: mic spacing vs spatial veracity

Subject: Re: mic spacing vs spatial veracity
From: madl74
Date: Tue Aug 6, 2013 7:21 am ((PDT))
>> Some years ago there was an AES paper (sorry I can't find it now) on a >=
> shoot-out between a number of popular stereo arrays. ORTF got high marks =
>> for source positioning accuracy.

Dan,

I have more on another paper below but what I have also found is:

 "Choosing and Configuring a Stereo Microphone Technique Based on
 Localisation Curves

 Magdalena Plewa1 / Piotr Kleczkowski1"

Link:
http://www.degruyter.com/view/j/aoa.2011.36.issue-2/v10168-011-0026-8/v1016=
8
 -011-0026-8.xml

URL:
http://www.degruyter.com/dg/viewarticle.fullcontentlink:pdfeventlink/$002fj=
$
Message: 002faoa.
Subject: 2011.36.issue-2$002fv10168-011-0026-8$002fv10168-011-0026-8.pdf?t:a=
c
=3Dj$002faoa.2011.36.issue-2$002fv10168-011-0026-8$002fv10168-011-0026-8.xm=
l

Spin down past the maths and look at the plots on page 9. These give the
object/image localisations for various setups. Figs 6 and 7 compare ORTF
with XY at 90 deg.

Back to another email:

> Is it this one
> http://tinyurl.com/potfwud

John,

I've just waded through this paper and it is assessing distance perception=

with different loudspeaker combinations in large auditoriums.

They settled on an ORTF mic setup:

 "In a comparison of various stereophonic
 microphone arrays, Hugonnet and Jouhaneau [8] find
 that coincident techniques (such as XY and MS) yield
 the most accurate lateral localization, while closely
 spaced techniques (including O.R.T.F.) yield the finest
 distance discrimination. In another comparison, Ceoen
 [9] found a subjective preference."

The recordings were all done on an ORTF mic rig, after rejecting AB and MS=

but "dipole" loudspeakers were included in antiphase. They were only lookin=
g
for distance and special effects, not lateral effects.

However, one reference looks interesting but I haven't located it:

C. Hugonnet and J. Jouhaneau, =E2=80=9CComparative
spatial transfer function of six different
stereophonic systems,=E2=80=9D 82nd Audio Eng. Soc.
Conv., London, Preprint 2465(H-5), 1987.


My conclusion for nature recording? Check out your rigs with a shaking
peanuts test using your ears. :-)

David Brinicombe








<Prev in Thread] Current Thread [Next in Thread>
Admin

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the naturerecordists mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU