Built on almost 20 years of research and development, ongoing worldwide
field testing and award-winning, breakthrough technology, the SIM 3
audio
analyzer system is the newest generation of acoustical audio analysis
in an integrated hardware and software package. In the field or on the
bench,
the SIM 3 system analyzes
entire sound systems as easily as it verifies the performance of individual
electronic components.
1986
Based on the Hewlett-Packard 3582A dual-channel FFT analyzer, the
first generation SIM’s novel source independent measurement
capability immediately garners Mix magazine’s prestigious
TEC Award for Outstanding Technical Achievement (in) Acoustics Technology.
1992
The SIM II FFT analyzer, released in 1991, receives the prestigious
R&D 100 Award from R&D Magazine, for such innovations as
its three simultaneous transfer functions. (Pictured: SIM II unit with multi-channel
line/mic switcher and monitor)
2003
SIM 3 launches, representing a major advance, greatly increased power
and added features at a fraction of the original size and cost. (Pictured: SIM-3022 audio analyzer, with
SIM-3088 multi-channel line switcher, two SIM-3081 mic switchers,
flatscreen monitor, and keyboard/mouse)
Pioneered by Meyer Sound, SIM is a Meyer
Sound trademark for a highly developed analyzer for source
independent measurement.
The technique is a dual-channel acoustical analysis method
in which the excitation signal may be independent of –
not generated or determined by – the measurement system.
Source independent measurement uses faster, high-resolution
algorithms that substantially decrease errors and achieve
more precision than conventional dual-FFT techniques. Source
independent measurement provides the information required
to verify the components of a sound system including polarity,
distortion, dynamic range, coverage and more.
The combined components can then be precisely aligned using
the SIM 3 audio analyzer's capability to guide the process
of setting crossover
parameters, delay times, equalization, level and speaker
positioning.
Made for the road, equipped with a fast flash hard drive and blazing
fast processing speed — more than 50 times that of SIM II —
the SIM-3022 audio analyzer provides capabilities far beyond those of
existing audio measurement systems. For example, under windy conditions
the extraordinary
speed
of
the SIM 3 analyzer enables it to successfully take measurements when
the wind subsides for one brief moment. And measurements using voice
as the
source
for
microphone
equalization that formerly took minutes now take seconds.
This dedicated 2-space rack-mount hardware running proprietary software
features:
The ability to test entire acoustical/electronic
systems or individual electronic components
Unprecedented power and speed with more than
2,000 FFTs per second: results at high resolution in less than one second
Voltage and SPL calibrated measurements
Two line level and mic inputs with instrumentation
grade preamps
Optional external line or microphone signal
switchers to expand the number of signal branches to be measured
without any
re-patching
Optional internal 2-channel switcher ideal for
studio work
CD-RW storage for analysis data and export to
other environments
Digital signal generator capable of creating
a wide variety of test signals
In addition, the SIM-3022 audio analyzer’s high-quality 24-bit
converters and ability to make measurements with over 110 dB of dynamic
range enable
THD (total
harmonic distortion) measurements down to .001%. For frequency response,
the SIM 3 analyzer displays information above 1 kHz (averaged 16 times)
in less than
one second, while frequencies from 250 Hz to 1 kHz are displayed in less
than three.
