On 12/06/2015 11:46 AM, Jörn Nettingsmeier wrote:
On 12/05/2015 05:26 PM, Stefan Schreiber wrote:
I wrote: "8-channel ... hedgehog", which is/was already some form of
educated guess.
See:
http://www.hauptmikrofon.de/HW/TMT2012_3DNaturalRecording_Theile_Wittek_2012_11.pdf,
pg. 19.
This hedgehog layout really fits to the microphone openings of the Ozo
camera...
btw, since you're quoting this very interesting article, it has been
partly superseded by recent research of lee at al. at huddersfield (see
latest JAES), who found that there is _no_ vertical precendence effect
and that interchannel time differences in vertically spaced loudspeakers
do not contribute to localisation in any way. helmut is aware of this
and has presented a much more compact 8-channel mic array at ICSA 2015
in graz, where the top and bottom mics are practically coincident.
i should have mentioned that the main reason for schoeps to move away
from vertically spaced arrays was not localisation (as mentioned
elsewhere, wittek's main interest is ambience in the height channels),
but the evidence presented by lee that such spacing does not produce any
noticeable difference in AB comparisons. so there is no reason to put up
with the additional bulk of vertical spacing.
--
Jörn Nettingsmeier
Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487
Meister für Veranstaltungstechnik (Bühne/Studio)
Tonmeister VDT
http://stackingdwarves.net
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