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Steve Temme of LISTEN, Inc. gave an thought-provoking presentation September 14, 1999 on virtual
instrumentation optimized for acoustical test and measurement. He was assisted by Mark Dailey during
the informal Q & A period.
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Temme began by describing the
state of T&M equipment before
inexpensive, powerful PCs and
software came on the scene: dedi-
cated instruments for electronic
measurements but with no opti-
mization for electro-acoustical
use; proprietary software and
unique interfaces; DOS-based
programs; and proprietary (black-
box, "keep-your-hands-off or
else!") data acquisition units.
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PC-based systems can be multi-channel and have analog and digital sound cards, all with great resolution
and s/n. Combine this with a virtual instrument suite -- ala National Instruments LabView or equivalent
-- and you have a very powerful electro-acoustic data acquisition, processing and display system in a pack-
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age hardly larger
than a laptop PC
(not including
peripheral devices
such as mics and
their power sup-
plies.). The power
of the system,
beside the software
that LISTEN, Inc.
has developed,
(Continues p. 2)
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