SIM 3 Audio Analyzer
Three Concurrent Transfer Functions
Rig It, Measure It, Align It!
Power, Speed and Accuracy
Hardcore Hardware
Total System Approach
Setup & Data Viewer
Software & User Guides

SIM-3022 audio analyzer

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.

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.

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)

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.