Re: best mic(s) for environmenal recording?

>     Bearcat M. Sandor wrote:
> >     >> Soundman OKM In-Ear Binaural
Microphones?
> >     >> My preferred small and portable
solution...
> >     >
> >     > Those look really interesting. Wouldn't
they capture the sound
> >     of the
> >     > person moving their head and walking
around?
> 
>     > I have to admit though it would be a great
test of system resolution
> >     > during playback. 
> 
> On 4/11/07, *Dragan Noveski* wrote:
> > I certainly wouldn't mind going for a binaural
effect... hmmm... where 
> > to find a head?
> 
Mike Taht wrote:
me lucky to be living in berlin, borrowed a head at the
neumann company 
> once! i think it coast several 1000's of €'s.
> 

Am Mittwoch, den 11.04.2007, 17:13 +0200 schrieb Dragan
Noveski:
> but there is also a cheaper solution, those two mics
which looks like 
> in-ear-headphones. makes the same in-head-stereophonic,
only the mics 
> are not neumann, but el-cheapo.
> 

Hello all,

I did a lot of really stunning (classical) concert
recordings with
in-ear binaural mics. I.e. you really don't need a dummy
head, if you
are able to keep your own heard unmoved. It just requires a
bit of
discipline. Small movements don't hurt, they rather
drastically
improve the binaural imaging. The effect of different
people
having different head shapes (HRTFs) is noticeable, but for
the
purpose of just listening to music (and not doing angle
measurements)
this doesn't matter much. The effect when listening with
good playback
equipement and (open) headphones is really thrilling, quite
immersive.
I don't know any recording technique providing better this
"live" 
or "we are there" feeling combined with the
possibility to use
very high quality equipement at a moderate price tag (good 
loudspeakers are a great deal more expensive).

The OKMs are nice, but even the "classical"
variant is rather 
middle class quality level. For really good results you can
use
the DPA 4060 mini electret capsules. IIRC, DPA themself
provide
some "binaural set" equiped with this mics. 
I bought mine from "Core Sound" http://www.core-so
und.com/bk/1.php

Cheers,
Hermann Vosseler
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On Wed, Apr 11, 2007 at 08:02:55PM +0200, prgichthyostega.de wrote:

> I did a lot of really stunning (classical) concert
recordings with
> in-ear binaural mics. I.e. you really don't need a
dummy head, if you
> are able to keep your own heard unmoved. It just
requires a bit of
> discipline. Small movements don't hurt, they rather
drastically
> improve the binaural imaging. The effect of different
people
> having different head shapes (HRTFs) is noticeable, but
for the
> purpose of just listening to music (and not doing angle
measurements)
> this doesn't matter much. The effect when listening
with good playback
> equipement and (open) headphones is really thrilling,
quite immersive.
> I don't know any recording technique providing better
this "live" 
> or "we are there" feeling combined with the
possibility to use
> very high quality equipement at a moderate price tag
(good 
> loudspeakers are a great deal more expensive).

A good way to listen to binaural recordings using speakers
is to
use a 'stereo dipole' setup; speakers are close together so
you
see an angle of 15 to 20 degrees between them, and the
recording
is processed using a crosstalk cancelling convolution
matrix.
The net result is that each ear only gets the signal from
one
channel, as with headphones, but you can still move (a
little
bit) and turn your head w.r.t the sound stage. It works
even
better with a second pair at the back, using the same
signals.
The only practical problem is that the 'sweet spot' is
quite
small. If two persons want to listen at the same time they
should be one behind the other, not side by side.

The latest release of JACE comes with config and IR files
to
do this. 


-- 
FA

Follie! Follie! Delirio vano è questo !


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Mike Taht wrote:
> Thanks everybody for all the feedback. I spent a lot of
time lusting 
> after the km-184s, but I decided to try my luck with
the matched pair 
> Rode NT5s, being that they cost quite a bit less. In
combination with 
> the digimax fs, recording at 96khz, the results were
pretty darn good. 
> With headphones on I could hear the whole neighborhood
(at about 8PM on 
> a friday, so there was some stuff going on a few blocks
away, dogs 
> barking, and at least 5 cars drove by.....)
> 
> Later, I sat about 20 feet behind the the mics that
were facing the 
> forest - and recorded ht
tp://www.taht.net/~mtaht/outside_cybernation.ogg 
> on guitar, just to get a feel for what the relative
levels were like in 
> this decidedly non-optimal scenario. (the above ogg is
downsampled to 
> 48khz, and I haven't actually listened to it yet.
Remember that it's 
> supposed to be at a fairly low volume).

It's so low that most of it's practically inaudible to me on
headphones, 
and mostly inaudible through stereo amp and speakers. And
either there's 
no guitar on the right channel, or the right volume level is
zilch. 
Outside of that, it does sound clean and clear.

-- 
David
gnomehawaii.rr.com
authenticity, honesty, community
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