ViAcoustics

Proportional Octave Band Analysis

The proportional octave band display and control allow user configuration for 1/1, 1/3, 1/6, 1/12 or 1/24 octave analysis over a frequency range of 1 Hz to 20kHz. Both ANSI and IEC compliant filters specifications are available.

Multi-Channel Display

The Trident mX multi-channel display is a very useful tool for viewing proportional octave band data for all measurement channels on the system at one time. The horizontal axis is frequency and the vertical axis is microphone position number, with color representing the level in each band at each position. This display can be used as a system diagnostic aid to detect dead or noisy input channels or as a measurement tool to visualize spatial directivity patterns.

High Resolution FFT Analyzer

The Trident FFT Analyzer runs in parallel with the proportional octave and ISO 532B Loudness analyzer.

System controls allow selection of Power Spectrum, Power Spectral Density or Magnitude Analysis. Windowing functions include Hanning, Hamming, Blackman-Harris, Exact Blackman, Blackman, Flat-Top, 4 Term B-Harris, 7Term B-Harris, Low Sidelobe or None.

FFT resolution is controlled by adjusting the system sampling rate and analysis block size on the Sampling Configuration Control tab. FFT resolutions of 1 Hz or less are achievable using the Trident mX application.

Graphical Frequency Zoom controls and a pair of energy cursors make Trident mX a fully functional real-time FFT analyzer.

FFT results can be exported to MSExcel or Text files.

ISO 532B Loudness

Trident mX includes a free-running, real time, ISO 532B Loudness meter. ISO 532B Loudness is the most basic of the Sound Quality metrics and is quite useful in estimating subjective reactions to the overall loudness of different sounds. The ISO 532B Loudness analysis is conducted for either Free or Diffuse sound fields. Both overall Loudness and specific Loudness vs Bark or Frequency are calculated and displayed.

Tabular Results Table

Linear, Awtd and Loudness of each measurement channel displayed numerically
Calibration Status Window

Tabbed Control Menu

LabView Tab controls provide easy access to all user settings
Configure Data Acquisition Boards, Sampling Rates
Control 1/3 OB, FFT and ISO 532B Analysis Settings
Control Audio and Display Settings
Easy Access to Calibration Routine

Input Ranging Controls for Each Channel

MS Excel Configuration

All Trident mX Configuration Settings available on the Tabbed Menu controls can be pre-configured using MSExcel based configuration files. Users may have multiple configuration files, allowing the data acquisition system and Trident mX software to be used in a variety of instrumentation configurations. Pre-programmed configuration files are also very helpful in laboratories where technicians that may not understand all system settings will be operating the system. Since most all system configuration parameters and export parameters can be set in this configuration file, users can highly customize Tridents operations to meet their unique needs.

MS Excel Export

Trident mX uses Active X calls to Microsoft Excel to export any or all system data into pre-configured MSExcel workbooks. The result is a system that looks and feels like you’re measuring directly into Excel. Users can build custom export templates with data analysis, graphing and reporting to meet their unique needs. Once Trident exports data into the template, the analysis is conducted and the report is ready to print.

Trident mX allows users to export data to any cell, on any worksheet of any MSExcel workbook. If the workbook does not already exist, a template file may be used to create the export workbook, allowing formulas, graphs and reports to be pre-programmed into the MSExcel template file. Worksheet names can be used to guide system users through an organized test procedure.

Trident mX allows full control over the data to be exported. FFT data may be save to either Text or MSExcel workbooks. Audio WAV file Precision may be selected. Basic test conditions and a note field may be attached to each data export.

MS Excel Export Templates

MSExcel workbooks are created for export, analysis and reporting of Trident mX data. Turnkey measurement systems provided by ViAcoustics are typically provided with “starter templates” for your measurement applications. MSExcel templates are completely user configurable, allowing users to analyze, graph and report on data in a way that meets their unique measurement needs.

Trident mX is a full featured measurement application designed for product noise emissions and general acoustics measurements using National Instruments Digital Signal Analyzer. Trident is available from ViAcoustics as part of turnkey measurement systems that include hardware, software, transducers, system integration and training.

Like the Screenshot Tour? Want to See a Live Trident mX Demo?

Live Trident mX demos are available by contacting ViAcoustics. Using GoToMeeting software we can invite you to visit us in the Acoustic Systems' Acoustical Research Facility, where you can watch on our video cameras and see our screens as we use Trident mX to make real-world acoustic measurements. If Trident mX looks like the acoustic measurement application you’ve been looking for, let us know. We’ll be glad to conduct a demo to show you how Trident mX can be configured to meet your measurement needs.