Last Sunday I tried to compare four of the new "point-and-shoot"
recorders with their internal mics in the field (in Berlin, Germany).
I placed them all on a stack one above the other and recorded the
following tracks simultaneously:
http://www.avisoft.com/test/R09_field.mp3
http://www.avisoft.com/test/DR-1_field.mp3
http://www.avisoft.com/test/LS-10_field.mp3
http://www.avisoft.com/test/PCM-D50_field.mp3
I tried to match the different recording levels a bit, but the results
it might not be perfect.
On the SONY PCM-D50, the mic orientation was set to 120=B0. This is the
reason why the left and right channels are audibly reversed.
Unfortunately, the sample rate on the PCM-D50 was only 22.05 kHz (I
simply forgot about that while struggling with the numerous devices).
There was a soft breeze. I therefore covered the stack of recorders
with a T-shirt in order to reduce the wind noise a bit. There is of
course still some noise originating from the reed on the left channel
(right channel on the PCM-D50).
I believe that this real-world test reveals some interesting
differences (certainly on the frequency responses of the different
microphones and the nature of their noise) but it also demonstrates
that it is quite difficult to get reliable results under field
conditions.
Regards,
Raimund
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