For clarification:
Could the eigenmike also do some 4th order recording (in a "real" sense,
not giving some 4th order "output"), or is it a 3rd order microphone?
Thanks,
Stefan
Fons Adriaensen wrote:
On Sat, Jun 15, 2013 at 09:21:55PM +0100, Paul Power wrote:
so it seems that the microphone is still not a perfect solution for
HOA recording and requires some highly technical tinkering before it
will give half decent results.
It depends very much on the application. Some of those recordings
made by Farina's team are quite good, for example the collection
of 'ambient sounds' of the city they made earlier this year. But
the musical ones so far failed to convince me. It's the processing
SW that isn't yet what it could be - I've no doubts about the
quality of the mic itself.
I've been present at some of the music recordings, so I can compare
my own impression of the event and the reproduction. One of these
was at the opera house in Parma. The mic was placed just behind the
conductor, and maybe half a meter above his head. Not and ideal
position, but it provides a reference point. I was sitting in the
first row, less than a meter from the mic stand. The recording was
'decoded' using a number of spot mics looking down on the orchestra
and four or so covering the stage (an angle of 120 degrees or so as
seem from the mic). The spot mics were then panned into 3rd order AMB,
and also used as primary sources in the WFS system of the Sala Bianca.
In particular the stage mics needed quite some EQ in order to sound
more or less natural, but even then the result lacked the presence
of the original sound. Parma's opera house is very 'dry' - the result
of the layers of plaster added with each restoration without removing
the older ones. So sitting in the first row you really get a sound
that is quite 'direct', I wouldn't want a seat there normally. But it
seemed impossible to reproduce anything like that.
Ciao,
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