Opus Suite Intensity Module User Guide – v1.4 2013-01-07 Compatible Hardware: Alto 6-Channel Concerto 4-Channel I-Track 6-Channel Soft dB Inc. 1040, Belvedere Avenue, Suite 215 Quebec (Quebec) Canada G1S 3G3 Toll free: 1-866-686-0993 (USA and Canada) E-mail: contact@softdb.
CONTENTS 1 Introduction ..............................................................................................................................1 2 Compatible Hardware ................................................................................................................2 3 Opus Environment .....................................................................................................................3 4 Main Interface ..............................................................
1 Introduction Congratulations on your purchase of the Opus Suite Intensity Module. The Opus Software Suite is a Sound and Vibration software that contains several modules: • SLM 4-ch module : 4-channels, Class 1 (IEC 61672 and ANSI S1.
2 Compatible Hardware Every hardware option has an embedded state of the art Soft dB SR-MK3 DSP board allowing realtime and precise measurement with very low energy consumption. Concerto 4-Channel Alto 6-Channel I-Track 6-Channel Handy, lightweight, fully rugged military grade (MIL-STD-810F and IP67) tablet PC with anti-glare & anti-scratch touch screen All in one instrument (no PC required) WLAN communication allows using the Concerto as a monitoring station with remote access. www.softdb.
3 Opus Environment The Concerto unit comes equipped with the Opus Environment. This environment acts as a main interface that gives access to the different modules and tools. Modules The modules buttons will launch the associated module. When a module is opened, a license verification check is done. If no license is found for that module, a message will indicate the limitations. The File Manger button will launch the File Manager Utility.
The Quit button will quit the application differently according to the hardware used. Concerto hardware: • Hold 5 sec to shut down the unit. • Press and release to enter standby mode. Alto-6ch or I-Track hardware: • Press and release to close the application and return to Windows.
4 Main Interface The main interface is divided into five sections: 1) 2) 3) 4) Measure controls (see section 5.1, p. 6) Measure info (see section 5.2, p. 6) Menu bar (see section 5.3, p. 7) Display area (see section 5.4, p.
4.1 Measure Controls RUN/PAUSE/CONTINUE When the user clicks this button, the measurement process is launched. The RUN button then automatically becomes the PAUSE button. When the user clicks this button, the measurement process is suspended. The PAUSE button then automatically becomes the CONTINUE button STOP/SAVE When the user clicks this button, the measurement stops. The STOP button then becomes the SAVE button. When the user clicks this button, the active measurement is saved.
4.3 Menu Bar File Menu Open Data: This item allows the user to open a measurement file (.rt6). Save Data: This item allows the user to save a measurement file (.rt6). When the user saves a measurement, its file number is automatically generated and saved in the measurement save directory. Export Data: This item allows the user to export the data in a tab delimited file (.txt .xls). This item launches the File manager (see section 7, p. Erreur ! File Manager: Signet non défini.
4.4 File Info File Info This area displays relevant information about the current file. It also contains controls allowing to go to the previous or next file in the current directory 4.5 Display Area The display area shows the spectrum and the global level in real-time during a measurement or of a file when it is loaded. The tabs at the left allow to switch between Intensity, Pressure and PI Index.
5 Setup Input Setup These controls allow selecting the microphone spacer, input channel, the input type and the input range from drop down lists. Record Setup These controls allow selecting the record directory, to write a custom file prefix to the file names and to select the auto-save mode that automatically records measurements when they end. Their names are automatically incremented in the record directory. Spectrum Range This control is used to define the spectrum range.
5.1 Calibration Process The calibration process includes the amplitude calibration of microphones, a phase check and a PI Index check. The amplitude calibration is performed using a sound pressure calibrator and the phase and PI Index check is performed using the G.R.A.S. 51AB sound intensity calibrator wired to the output 1 of the Concerto. Amplitude calibration is usually performed first, then Phase check is performed and only then the PI Index check will become available. 5.1.
5.1.2 Phase Check To perform phase check: 1. Connect the intensity calibrator to the output 1 of the Concerto. 2. Insert both microphones calibrator cavity. 3. Click on the Phase Check button on the Calibration Process interface to launch the Phase Check interface. 4. Click START to begin the test. An averaging is performed on the signal and the resulting phase response is displayed on the interface. An acceptable tolerance is also displayed on the graph. 5. When averaging is done, click OK to accept. 5.
6 Explorer Dialog File / Folder Operators Directory Path Shortcuts Directory Content Explorer Window Controls and Indicators File/Folder Operators Directory Path Shortcuts • • • • • Displays the path of the active directory. Accesses to common directories.
7 File Manager The File manager is used to perform most file operations: • • • • • Navigate the directory structure Create folders Rename files and folders Move or copy files and folders from one place to another Delete a file or a folder Although not very useful on a stand-alone computer, this manager is necessary on the Concerto, on which Windows explorer is unavailable.
Directory Path Displays the path of the active directory. Shortcuts • Desktop • My Documents • Computer When the File Manager is used on a Concerto, the shortcuts are linked to: Allows easy access to common directories. When the File Manager is used on a stand-alone computer, these shortcuts are linked to: • • Move/Copy Operators File/Folder Operators Directory Content Disk info Opus Root USB Device. Copies or moves a file or folder from a source to its destination.
Appendix 1: Concerto Hardware Connections Mic Stand 4 Inputs Loudspeaker Headphone Jack Power-on button 2 Outputs DC in ¼ 20 insert Second Battery USB port Battery indicator Right click 15 Enter Arrow keys
Power on/off Power-on Turn On Turn Off Press the trigger button located at the back of the unit This key has two (2) functions: 1. To turn the unit ON. 2. Start a measurement once the SLM Module is loaded After a few seconds, the Opus Environment Interface will appear. The stand-by mode allows fast load time. Stand-by • To put the unit on stand-by, click the Turn Off button.
Power Reset If the Concerto happens to crash and it is not possible to take back the control, a power reset might be necessary. To complete the power reset, the three buttons on the front of the Concerto must be used. Here is the procedure: Step 1 Press and hold the Function, Enter and Down Arrow button for 5 seconds until the Concerto shuts down Step 2 Wait 5 seconds and press the power button Step 3 Wait 5 seconds and press the power button a second time to restart the Concerto from a power reset.
Inputs and Signal Processing Specifications (Embedded Signal Ranger MK3 DSP Board) Texas Instruments TMS320C6424 DSP Processor 4 Inputs 2 Outputs 2 x (25-120 dBA or 30-130 dBA) + 2 x (25-120 dBA) Linear Range AC, DC, ICP (4 mA) Conditioning Physical (DAP Tech 9000 Tablet PC) Intel Atom E660T 1.3 GHz Operating system Storage Data Transfer Display Dimensions Weight Battery 16 GB SSD USB 180 mm (7 inches) WVGA (800 x 480) 230 x 185 x 60mm (9.0 x 7.3 x 2.4 inches) 1350 g (2.
Appendix 2: 1/3 Octave Filters – IEC 61260 Class 1/ANSI S1.11 1/3 Octave Filters The 1/3 octave filters are computed at low-level in real time (at 48 kHz) on the digital signal processor (DSP) of the Concerto system. The filters comply with all requirements of IEC 61260 for Class 1. Frequency Range 20 Hz to 20 kHz. Filter Shape The following curve presents the filter shape test done for the 1000 Hz 1/3 octave band. The red and green curves represent the limits associated with the IEC standard (Class 1).
Shape Test Numerical Results at 1 kHz The following table presents the numerical results of the shape test at 1 kHz: Frequency (Hz) Low limit (dB) Measurement (dB) High limit (dB) 185.5 -inf -96.0 -75.0 327.5 -inf -85.1 -62.0 531.4 -inf -61.1 -42.5 772.6 -inf -28.2 -18.0 891.3 -4.5 -3.0 -2.3 919.6 -1.1 -0.3 0.15 947.0 -0.4 0.0 0.15 974.0 -0.2 0.0 0.15 1000.0 -0.15 0.0 0.15 1026.7 -0.2 0.0 0.15 1055.8 -0.4 0.0 0.15 1087.5 -1.1 -0.3 0.15 1122.0 -4.5 -3.
1/3 Octave Filter Linearity The linearity of the 1/3-octave filter has been measured for both ranges (low and high). The experimentation is done with an adaptor (ADP092) and an electric signal. The results in dB are for an input sensitivity of 50 mV/Pa. The maximum and the minimum linear levels are measured for each 1/3 octave band along with the noise floor. Filter Linearity (Low Range) Saturation Level Frequency (Hz) (dB) 120.5 20 Minimum Linear Level (dB) 39.5 Linear Dynamic Range (dB) 81.
Minimum Linear Level (dB) 27.0 Linear Dynamic Range (dB) 93.5 Noise Floor (dB) 12500 Saturation Level (dB) 120.5 16000 120.5 27.6 92.9 19.5 20000 120.5 28.3 92.2 19.7 Minimum Linear Level (dB) 51.5 Linear Dynamic Range (dB) 81.0 Noise Floor (dB) Frequency (Hz) Filter Linearity (High Range) Saturation Level Frequency (Hz) (dB) 132.5 20 17.5 7.3 25 132.5 49.2 83.3 5.3 31.5 132.5 47.1 85.4 2.0 40 132.5 44.2 88.3 7.9 50 132.5 41.8 90.7 9.3 63 132.5 39.1 93.4 9.
Minimum Linear Level (dB) 33.5 Linear Dynamic Range (dB) 99.0 Noise Floor (dB) 10000 Saturation Level (dB) 132.5 12500 132.5 34.1 98.4 25.2 16000 132.5 35.8 96.7 27.3 20000 132.5 37.1 95.4 27.7 Frequency (Hz) 23.5 1/3 Octave Filter Summation For this test, sine waves from 20 Hz to 20 kHz are measured with the Concerto system. For each sine wave the summation of the 1/3 octave filters is computed to form the following curves. The sine waves are electrical signals at 1 VRMS.
Summation Test (High Range Case) 0.5 0.4 0.3 Amplitude dB 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.