Opus Suite SLM & 3Vib Module User Guide – v2.6 2013-02-18 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 ............................................................................................................. 3 3 Opus Environment .................................................................................................................. 4 4 Quick Start ..............................................................................
7.2.4 SLM Numeric Indicators ............................................................................................ 31 7.2.5 SLM Statistic Graph ................................................................................................... 32 7.2.6 Vibration Historic Graph ............................................................................................ 33 7.2.7 Vib 1/3 Octave Spectrum Graph................................................................................ 34 7.2.
1 Introduction Congratulations on your purchase of the Opus SLM & 3Vib 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.
Audio Recording on triggered level Programmable measurement period Post-processing software Display up to 4 zones with up to 4 items per zone.
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 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.com/concerto.
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. Opus Suite V2.4a 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 (see section 0, p.
The Clock indicator displays the time and date on the unit. To change time, simply click on the indicator to display a dialog window. The Quit button will quit the application differently according to the hardware used. Concerto hardware: Press and hold (5 sec) to shut down the unit. Press and release to enter standby mode. Alto-6ch or I-Track hardware: Press and hold (5 sec) to close the application and return to Windows.
4 Quick Start The AutoStore Setup is presumed to set to OFF. Step 1 Set the Averaging Time Click on the allow this change. Step 2 field to change the Leq Averaging Time. A numerical key pad will appear to Start the Measurement Click on the button to start a measurement. The measurement will be performed according to the current measurement setup. The measurement can be paused by clicking the the Step 3 button and can be resumed by clicking button.
Before Measurement During Measurement After Measurement ← Run / Pause / Continue Button ← Stop / Save Button ← Current DataSet ← Previous / Next DataSet ← Next DataSet To Be Saved1 ← Leq Averaging Time ← Running Time ← Current Leq Period Time ← Current Dataset Time ← Time from Start ← Over / Under Range Indicator ← Audio Recording Indicator ← Photo Information Indicator ← FTP Information Indicator 1 This indicator flashes red for 10 seconds when the measurement has stopped but has not been saved.
5 Main Interface The main interface is divided in five areas: 1) 2) 3) 4) 5) Measure controls (see section 5.1, p. 10) File Info (see section 5.2, p. 10) Measure Info (see section5.3, p. 12) Menu bar (see section 5.4, p. 12) Display area (see section 5.5, p.
The setup is divided into three parts: Input Setup Input enable (on or off), Input type (ICP or AC), Sensor sentitivity, Decibel reference, Input range. Decibel reference, Input range. FFT frequency bandwidth (SLM) FFT high pass filter (SLM) Frequency weigthing (vib) FFT bandwidth and resolution (vib) Frequency weigthing (vib) Display Setup 1-, 2- or 4-zone display. Each zone with a selectable display type (Historic, 1/3 octave Spectrum, FFT Spectrum. Numerical Indicator or Statistics).
5.1 Measure Controls Run / Pause / Continue This button starts the acquisition. The Run button then automatically becomes the Pause button if the AutoStore is off or single mode. This button suspends the acquisition. The Pause button then automatically becomes the Continue button. Pause is only available if the AutoStore is off or in single mode. This button continues the acquisition. The Continue button then automatically becomes the Pause button again. Stop / Save This button stopped the measurement.
File Info Appearance – Auto-Store On (see section8.3, p.49) During Measurement During a measurement, the Current DataSet ID indicates in which DataSet the current data is saved. The Next DataSet ID is disabled until the end of the measurement. After Measurement When the measurement is stopped, the Next DataSet ID is enabled and indicates the DataSet ID in which the next measurement can be saved.
5.3 Measure Info Measure info Indicates the average duration. Click on the indicator to modify the Leq Averaging Time value. Leq: Elapsed time since the beginning of the current averaging period. Dataset: Elapsed time since the beginning of the current DataSet. Since Start: Elapsed time since the start of the measurement. When using the AutoStore Setup in Multiple Mode, a new average will start at the end of each Leq period. Those average data are stored in a DataSet, which may be referred as a data file.
5.4 Menu Bar File Menu Open DataSet Opens a DataSet. Save DataSet Saves a DataSet if not saved yet. Export DataSet Exports DataSets in a spreadsheet file. (see section 0, p. 65) File Manager Launches the File Manager (see section 0, p. 66) Open Config Restores a saved software configuration. Save Config Saves the software configuration. Quit: Quits the SLM module and to returns to the Opus Suite Interface. Input / Display / Record Setup Buttons Launches the Input Setup (see section6, p.
5.5 Display Area One, two or four graph areas can be displayed in the Display Area. During a measurement, data is displayed in real-time. For each graph area, five types of display can be selected: Historic Graph (see section 7.2.1 p. 26) 1/3 Octave Band Spectrum Graph (see section 7.2.2 p. 29) FFT Spectrum Graph (see section 7.2.3 p. 30) Numerical Indicators (see section 7.2.4 p. 31) Statistics Graph (see section 7.2.5 p. 32) Each of these displays can show up to four different elements.
5.5.2 Y Axis Scaling Each graph has a graph data. 5.5.3 icon at the bottom left corner. Clicking on this icon adjusts the Y scale to the Cursors A cursor can be used on each graph to help the user access an individual datum. However, the cursor on a historic graph is only available when the acquisition is stopped. Cursor Actions Get Cursor Click on graph to position the cursor. Cursor Value Cursor X value is displayed below the graph.
5.5.3.1 Complementary Actions Associated to the Cursors 1) The length of the Historic graph is limited to 1000 values. When the number of values excides 1000, the graph slides on the left so that only the most recent data is displayed. Moving the cursor on the left of the graph moves the time window back in time to display past values. 2) When the cursor on the Historic graph is moved, the values displayed in other graph areas will update to the current Historic cursor position.
5.5.4 Listening to Audio Records When audio signals have been recorded during a measurement (see section 8.5, p. 56), a red line is displayed on the top of the Historic graph. The start position and length of the line corresponds to the recording period. To listen to the recording, the Historic graph must be magnified. Click on the corner of the graph to magnify the graph. icon on the top left Recording Period 5.5.4.
Recording Controls 5.5.4.2 Click the Playing the record button at the right end of the Audio Recording Indicator to start playing the record. Adjust the volume with the control.
6 Input Setup Click the button on the main interface to launch the Input Setup interface. The Input Setup includes the SLM Input Setup (section 6.1, p.19) and the Vibration Input Setup (section 6.2, p.22). 6.1 6.1.1 SLM Input Setup SLM Input Selection The SLM and Vib application uses its first input to perform SLM measurements. Click on the input button (at the right of the window) to enable (light green) or disable (dark green) the SLM input. 6.1.
6.1.3.1 SLM Calibration Interface Figure 1 SLM Calibration Interface Step 1 Adjust the calibration parameters The defaults values are: Averaging time: 5 s Frequency: 1 kHz Calibrator Level: 94 dB Step 2 Install the calibrator device on the microphone Step 3 Click START After the average time is elapsed, the sensitivity value will update. Step 4 6.1.
6.1.5 SLM Dynamic Range The dynamic range of the SLM input is around 94 dB. Two ranges are available (Low or High)2. The table below provides examples of the dynamic ranges for given sensitivities of 40 and 50 mV/Pa. Microphone Sensitivity 40 mV/Pa 50 mV/Pa Low Range 27 to 121 dB(A) 25 to 119 dB(A) High Range 39 to 132 dB(A) 37 to 130 dB(A) 6.1.
6.2 6.2.1 Vibration Input Setup Vib Input Selection The SLM and Vib application uses its inputs 2, 3 and 4 (X, Y and Z axis) to perform vibration measurements. Click on the input button (at the right of the window) to enable (light green) or disable (dark green) the corresponding input. If the Measurement Type is set to one of the ISO 2631 measurements, the three vibration channels will be enabled or disabled as a whole. 6.2.2 Vib Input Type The available input types are DC, AC and ICP sensors. 6.2.
6.2.3.1 Vib Calibration Interface Step 1 Adjust the calibration parameters The defaults values are: Averaging time: 5 s Frequency: 157 Hz Calibrator Level: 1 g rms Step 2 Install the calibrator device on the microphone Step 3 Click START After the average time is elapsed, the sensitivity value will update. Step 4 Click OK to accept the sensitivity value After the average time is elapsed, the sensitivity value will update. 6.2.
Microphone Sensitivity 100 mV/g = 10.2mV/(m/s²) Range 6.2.6 ± 15 g = 1.53 m/s² Vib Measurement Type The Measurement Type menu provides predefined settings for ISO 2631 measurements. For a given ISO 2631 measurement, specific frequency weightings will be used for each axis. A specific k Factor for each axis will also be used in the vector summation of the three axes. It is also possible to set the Measurement Type to “Custom” and use user defined values of frequency weighting and k Factor. 6.2.
7 Display Setup During a measurement, all acoustical parameters are calculated and available for display. The button launches the Display Setup interface used to define: Display Area Disposition (see section 7.1, p. 26) Display Type (see section 7.2, p.26) Display Data Selection(see section 7.3, p. 37) X axis and Y axis properties (see section 7.4, p.
7.1 Display Area Disposition 1, 2 or 4 graphs can be displayed at the same time. Click one of the icons in the upper part of the Display Setup to select the desired number of graphs for display. 7.2 Display Type For each zone, the Display Type controls allow the user to select the type of display. A display zone will either display SLM data, vibration data or Camera according to the leftmost menu ring of the display type. Then a display type can be selected from the rightmost menu ring. SLM display.
Camera display (see section 7.2.9).
7.2.1 SLM Historic Graph Available data Data Type Time Weighting SPL Slow Freq Weighting Display Type A, C or Z Instant, Max or Min A, C or Z Running Average SPL Fast SPL Impulse SLM Global level SPL Peak Leq SEL Length of the historic graph The historic displays the last 1000 measured samples. Past samples may be displayed once the acquisition has been stopped (see section 5.5.3.1, p. 16).
7.2.2 SLM 1/3 Octave Spectrum Graph Available data Data Type Time Weighting SPL Slow Freq Weighting Display Type A, C or Z Instant, Max or Min A, C or Z Running Average SPL Fast SLM 1/3 Octave Spectrum SPL Impulse SPL Peak Leq SEL Legend Values Selecting versus on a 1/3 Octave Band Spectrum graph displays either the Global value or the Band value (associated to the cursor) on the Legend (see section 5.5.3.1, p. 16).
7.2.3 SLM FFT Spectrum Graph Available data Data Type SLM FFT Spectrum Time Weighting Leq SEL Freq Weighting Display Type A, C or Z Running Average Legend Values Selecting versus on a FFT Spectrum graph displays either the Global value or the Band value (associated to the cursor) on the Legend (see section 5.5.3.1, p. 16). FFT High Pass Filter A high pass filter is applied on the FFT spectrum to match the 1/3 Octave Spectrum frequency span, which is 6.3 Hz to 20 kHz (see section 6.1.6, p.21).
7.2.
7.2.5 SLM Statistic Graph Available data Data Type Time Weighting SPL Slow Freq Weighting Display Type A, C or Z Max, Min and Statistics SPL Fast SLM Global level SPL Impulse SPL Peak Graph / Data Display Selecting versus on a Statistic graph displays either the Cumulative Statistic Graph or a Table of most common Percentiles. Calculation Period The calculation period on which the statistics are computed is the same as the Leq Averaging Time (see section 0, p. 12).
7.2.6 Vibration Historic Graph Available data Data Type Input Vibration Global level X, Y, Z or SUM XYZ Display Parameter Instant Average Freq Weighting For details, see the section 6.2.6, p.24 Length of the historic graph During the acquisition, the historic only displays the last few samples. The time span is adjusted to match the SLM historic graph. Past samples may be displayed once the acquisition has been stopped (see section 5.5.3.1, p. 16).
7.2.7 Vib 1/3 Octave Spectrum Graph Available data Data Type Vib 1/3 Octave Spectrum Input X, Y, Z or SUM XYZ Display Parameter Instant Average Freq Weighting For details, see the section 6.2.6, p.24 Legend Values Selecting versus on a 1/3 Octave Band Spectrum graph displays either the Global value or the Band value (associated to the cursor) on the Legend (see section 5.5.3.1, p. 16).
7.2.8 Vibration FFT Spectrum Graph Available data Data Type Input Vibration FFT spectrum X, Y, Z or SUM XYZ Display Parameter Instant Average Freq Weighting For details, see the section 6.2.6, p.24 Legend Values Selecting versus on a FFT Spectrum graph displays either the Global value or the Band value (associated to the cursor) on the Legend (see section 5.5.3.1, p. 16).
7.2.9 Camera display The camera display can be used to display the life video captured by a webcam. The camera settings can be adjusted from the Photo Setup within the Record Setup interface (section 0, p.60). The software manages up to 4 cameras (acquires one at once). However, no more than one camera should be used on a Concerto unit to ensure real-time acquisition. Camera buttons Indicates that the camera is being displayed. Indicates that the picture is being taken and recorded.
7.3 Display Data Selection The Edit button of the Data Selection allows selecting the data to display on each display zone. The data selection panel is different for a SLM display (section 7.3.1) and for a vibration display (section 7.3.2). 7.3.1 SLM Data Selection / The Display Element Enable enables or disables an element in the display. Each display zone can have up to four elements. The Input Channel select input to display. Only enabled inputs will be available (see section 6.1.1).
The Time Weighting selects the parameter for each element. Some parameters may be restricted depending on the display type (see section 0 to 7.2.5). The Frequency Weighting selects the weighting among the A, C or Z. The user can choose to display the maximum or minimum value of the period or the instantaneous values. There are cases where only the instantaneous value is available (see section 0 to 7.2.5). The Average Period selects the reference period of the element.
7.3.2 Vibration Data Selection Figure 2 : Vibration Data Selection Interface / The Display Element Enable enables or disables an element in the display. Each display zone can have up to four elements. The Input Channel select input to display. In the SLM & 3Vib application, only the inputs 2, 3 and 4 (X, Y and Z) are available for the vibration part. (see section 6.2.1).
7.4 X axis and Y axis properties The X axis range automatically adjusts to the contained data. However, the 1/3 octave spectrum and FFT spectrum graphs X axis (frequency axis) range can be set manually to zoom in on a specific portion of the spectrum. For FFT spectrum specifically, the X axis (frequency axis) mapping can be set to linear or logarithmic. The Y axis range is automatically adjusted to contained data by clicking on the button at the bottom left corner of a graph display (see section 5.5.2, p.
8 Record Setup The Record Setup allows the user to define: Record Destination (see section 8.1, p. 42) Dataset ID (see section 8.2, p. 47) Auto-Store Setup (see section 8.3, p. 49) Data Selection (see section8.4, p. 50) Audio Setup (see section8.5, p. 56) Photo Setup (see section 8.6, p. 60) Generator Setup (see section 8.7, p.
8.1 Record Destination Obviously, the measurements can be saved on the local drive. These data are recorded in a format compatible for post-processing (either the Opus SLM-4ch module or the SLM Data Analyzer). A more advanced feature also allows saving the measurements on remote location on the Web. The data sent to the Web use a dedicated format for easier Web monitoring, but the data are also compatible with the SLM Data Analyzer. 8.1.
These DataSets are displayed as on the explorer window. The File/Open function in the main interface opens these DataSets to display them on the Main Interface. On the Opus SLM 4ch software, access to the DataSet content is prohibited to avoid suppression of any attached file. However, on a stand alone computer the access to the DataSet content is allowed to enable user to access the Data File and associated audio and photo files individually.
8.1.2 Record on the Web Notice: The vibration data of this module is not yet supported by the Web mode. Only the SLM data are transferred to the FTP server. When Web + Local Drive is selected, the data are saved both locally (see above) and remotely. New controls appear on the panel to configure the Web transfer. This is an advanced mode intended for web monitoring. It is also possible to post-process the data sent on the Web (FTP server) with the post-processing software (SLM Data Analyzer).
Login password Port number of the FTP server. The default value is 21. To unlock the control, press and hold the port number indicator for 5 sec. The combination of the Base Path, Unit Serial Number and Station Name form the record path on the FTP server. The Unit Serial Number is related to the hardware used. Therefore, it cannot be changed by the user. When recording to the Web, up to 4 different averaging periods can be enabled.
The filename format of a DataSet is the The Start time of the DataSet (YYYYMMDD_hhmmss) The period number (Per1, Per2, Per3 or Per4) The DataSet index (DS0, DS1, DS3, …) For example: 20120831_14h56m15_Per1_DS0.dat: DataSet started on 2012-08-31 at 14:46:15, averaging period 1 (the main one), the first DataSet of the measurement. 20120901_00h00m00_Per3_DS1.dat: DataSet started at the beginning of the day on 201209-01, averaging period 3 (the 3rd one), the second DataSet of the measurement.
8.2 Dataset ID DataSet ID The ID Format allows the user to choose the name format of dataset files to be recorded. Four-digit increment of the DataSet in the Record Directory DataSet start time in format YYYYMMDD_hhmmss DataSet start time in format MMDD_hhmmss DataSet start time in format DD_hhmmss The ID increment allows the user to choose when to switch to a new measurement file. This control is enabled only when AutoStore is in Multiple Mode (see section 8.3, p. Erreur ! Signet non défini.).
8.2.1 DataSet and Leq Alignment In several cases, it is useful to align the Leq measurements to match the time on the clock. For example, it may be useful to align the 1 hour Leq periods of a 24 hours acquisition (in Multiple AutoStore Mode) in order for the Leq to start exactly at the beginning of a new hour on the clock. A measurement started at 7:35 AM would then start a new Leq at 8:00 and every hour afterward.
8.3 Auto-Store Setup The Auto-Store Setup provides several options for saving measurements. AutoStore Modes The measurement will stop after the Leq Average Time elapses. The resulting DataSet must be stored manually by pressing the SAVE button. The measurement will stop after the Leq Average Time elapses. The resulting DataSet is stored automatically. The measurement continues after the Leq Average Time elapses, averaging is reset and each period data is stored automatically.
8.4 Data Selection The Data Selection area of the Record Setup Interface displays a summary of the options selected by the user. It also displays some relevant data size information. The button launches the Record Data Selection interface that defines: Data Recording Mode (see section 8.4.1, p. 50) Data Record Rate (see section 8.4.2, p. 54) Values to Record (see section 8.4.3, p. 54) Sampling Rate Instantaneous / Average Record Mode Data Selection Options Data Selections 8.4.
8.4.1.1 Instantaneous Record Mode The Instantaneous Record Mode records the instantaneous values at a relatively high rate. The SLM record rate is defined by the SLM Instant rate while the vibration record rate depends on the frequency resolution (Input Setup, section 6.2.7, p.24). This record mode allows for more flexibility in post-processing, but creates large files. It is recommended for short measurements that require high temporal resolution like impulsive events.
In the same way, the recorded vibration data consist of the spectrums of each input without any frequency weighting. All the vibration data will be extracted from those spectrums in postprocessing. 8.4.1.2 Average Record Mode The Average Record Mode records the average values at a relatively low rate. The record rate is defined by the Leq Average Time for both SLM and vibration data. This record creates smaller files, but allows for less flexibility in post-processing.
Only the Z weighting of the SLM spectrums can be recorded. The other frequency weightings can be easily applied on the recorded spectrum in post-processing. In the same way, the recorded vibration data consist of the spectrums of each input without any frequency weighting.
8.4.2 8.4.2.1 Sampling Rate SLM Instantaneous Rate The SLM Instantaneous Rate spans from 10 ms to 1 s. This parameter defines the rate at which the SLM data are managed in the application in general. This impacts the sampling of the SLM historic graph as well as the record rate of SLM data in Instantaneous Record Mode. Some sampling rates may not be suitable for some measure types. If such a combination occurs, a warning is displayed but does not prevent the user from proceeding with measurement.
Option All parameters used in the Display Setup are recorded in Instantaneous mode All acoustical parameters are recorded. Only desired data is recorded Advantage Back-draw Records what is displayed on the Main Interface Display Area. (Minimises the errors and oversights in data selection) File size in instantaneous mode can sometimes be significantly larger than in average mode. Ensures the availability of data should advanced postprocessing is required. File size can be significantly large.
8.5 Audio Setup Notice: In the SLM&3Vib module, only the SLM input (input #1) is supported for the audio recording. Do not take into account any reference to input 2, 3 and 4 in this section. The audio recordings are useful to identify the source of the noise that was measured. Recordings can be done on a level trigger and/or periodically. Audio Format The file format of the audio recordings. - .mp3 file, 16-bit & 24 kHz sampling rate compressed to 32 kbps - .
Trig Tab The file format of the audio recordings. - OFF: No audio recording is performed. - ON: Continuous audio recording is performed from the start to the end of a measurement. - On Trig: Recording is triggered by a noise event and lasts the specified duration. - On Multi-Trig: Recording is triggered by a noise event and the duration resets on every trigger value. 8.5.
The recording mode sets how the recording is done: OFF No audio recording is performed. ON Continuous audio recording is performed from the start to the end of a measurement. On Trig On Multi-Trig Recording is triggered by a noise event and stops after the user-specified duration. Recording is triggered by a noise event and the duration is reset if the trigger value is exceeded before the duration has elapsed.
8.5.
8.6 Photo Setup Along with the audio recordings, photos can be taken as an event occur or periodically. If activated, a camera will record a photo every time a new audio file is created. Virtually all webcams are compatible (use DirectShow interface). Press the Edit button to access the Photo Setup interface. 8.6.1 Photo Setup Interface Photo Setup Interface The Autofocus Delay should be adjusted to the time the camera takes to properly set its focus once it is powered.
8.6.2 Camera Setup Interface The Camera Setup interface is available from the Photo Setup interface. Camera Setup Interface The Camera Preview is the video streaming that outputs the camera. The Picture File Sample is a sample of the file that is recorded with the current camera setup. Select a camera from the Camera Selection menu. Select the image definition from the Image Mode menu. Adjust the Image File Quality from 0 to 100%. This quality factor is used in the jpeg compression process.
8.7 Generator Setup To edit the Generator Setup, press the corresponding button on the Record Setup interface. There are two independent generators that can be used. Output Channel Generator Output Channel Generator PC Sound Card Generator PC Sound Card Generator Uses the output channels 1 and 2 of the unit. Uses the sound card line out of the PC. Embedded generator with tone, white noise and DC offset. The optional Larson Davis 426A12 signal will output 2 VDC.
8.7.1 Calibration Check The calibration check is generally used in long term or permanent environmental system. It is intended to periodically verify that a system is working properly and that the acquisition level is adequate. To achieve this goal, an actuator has to be installed near the input sensor. Prior the measurement, the actuator will be exited to provide a reference signal at the input and the obtained reference spectrum will be saved.
Averaging Controls Starts and stops the average of the averaging of the spectrum. Once the Average Time in completed, the user is asked if the current spectrum should be used as the reference. Resets the averaging of the spectrum. The elapsed time since the beginning of the averaging. The duration of the averaging. Current spectrum on inputs Spectrum Graph The FFT spectrum of the enabled inputs. The legend of the plots and the global levels of are displayed in the upper right corner.
9 Data Exporter The Data Exporter utility is used to export data contained in a dataset in a .txt or .
Directory Path Displays the path of the active directory. File/Folder Operators Can be used to: Go to parent directory Open directory Rename folder or file Transfer Operator Transfers the Dataset content to the output data file. Export File Content Displays the content of the output file. To add data, drag DataSets from the Directory Content to the Output File Content or click on the Transfer Operator to transfer selected DataSets. Shortcuts Allows easy access to common directories.
10 Explorer Dialog File / Folder Operators Directory Path Shortcuts Directory Content Explorer Window Controls and Indicators File/Folder Operators Directory Path Go to parent directory Open directory Create new folder Rename folder or file Delete folder or file Displays the path of the active directory. Accesses to common directories.
11 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. Allows easy access to common directories. When the File Manager is used on a stand-alone computer, these shortcuts are linked to: Shortcuts Desktop My Documents Computer When the File Manager is used on a Concerto, the shortcuts are linked to: Move/Copy Operators 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 70 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 Inputs 4 Outputs 2 Linear Range 2 x (25-120 dBA or 30-130 dBA) + 2 x (25-120 dBA) Conditioning AC, DC, ICP (4 mA) Physical (DAP Tech 9000 Tablet PC) Intel Atom E660T 1.3 GHz Operating system Storage 16 GB SSD Data Transfer USB Display 180 mm (7 inches) WVGA (800 x 480) Dimensions 230 x 185 x 60mm (9.0 x 7.3 x 2.4 inches) Weight 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.
