User Manual
Instrument Reexion Filter Technical Manual
The IRF is also invaluable on
acoustic guitar recordings,
particularly if you prefer to use
omni or gure-of-eight pattern
mics rather than cardioids as these
are very sensitive at the rear — the
direction looking away from the
instrument. By shielding the rear
of the microphone with an IRF,
the amount of spill from other
instuments, as well as reections
from walls, is again reduced by a
very worthwhile amount. Similarly
the IRF is well-suited to recording
electric guitar or bass cabinets,
especially if using ribbon mics
(which have a natural gure-of-
eight pattern), but even if you are
using cardioid mics, the extra screening is worthwhile, especially if the microphone is some distance
from the amplier.
Other applications include violin and viola recording where the normal position of the microphone
above the instrument oers similar challenges to the drum overhead mic. Similarly, a stand
mounted cello mic will benet from the extra isolation aorded by an IRF. In fact the IRF can make an
improvement in any acoustic instrument recording scenario situation where either sound reections
or crosstalk from other sound sources pose a problem.
Using Your Instrument Reexion Filter