Soft-db OBSI Software User Guide Manuale Utente

Soft dB Inc. 1040, Belvedere Avenue, Suite 215 Quebec (Quebec) Canada G1S 3G3 Toll free: 1-866-686-0993 (USA and Canada) E-mail: [email protected] OB

7 3 Quick Start Step 1 Start up 1) Turn on the laptop by pressing the power button. 2) Once Windows® started, launch the OBSI software from the

8 Step 3 Launch the measurement 1) Launch the measurement by clicking the RUN button: 2) Run the measurement for a while and stop it by pressing

9 4 Software Description 4.1 Main Interface The main interface is used for both performing a measurement and post-processing. Main Interface 4.1.1

10 The auto-stop duration defines a logging maximum duration. When this duration is reached, the logging process is automatically stopped. This durat

11 The bottom left slider applies an additional gain to the operating system volume control and the bottom right vertical scales represent the audio

12 4.1.5 Display Area, Legend, display Settings and Rescale Axis The display area can be one of the following displays: • Time history graph, • 1/

13 4.2.1 Sensor Selection The sensor selection radio buttons allow the selection of the Leading Edge Probe, the Trailing Edge Probe or the Tachomete

14 4.3 Record Setup The record setup describes the software behaviour when it comes to record measurement files. To launch this interface, go to Set

15 4.5 Main Display Setup The main Display Setup controls how the software will display the results. To launch this interface, go to Setup / Display

16 Each graph can display up to 4 plots which can be of two different types, intensity and pressure or coherence and PI index for example. The availa

17 4.5.2 Main Historic Tab The main historic tab allows to define the data contained in the main time history. The main time history graph is a use

18 4.5.3 Plot Colors Tab The plot colors tab allows to define the plot colors. The positive and negative colors are used to specify the direction

19 4.6 Data Export The data can be exported as a tab delimited file that can be opened with any spreadsheet software. The data contained in this fil

20 Appendix 1 Standard Reference Test Tire (SRTT) Purchasing Procedure

21

22

i CONTENTS 1 Introduction ...

1 1 Introduction Congratulations on your purchase of the OBSI Module. The OBSI Module is a powerful tool to perform tire-pavement noise according to

3 2 System Description This user guide covers only the software part of the measurement system as the sensors and the fixture are not supplied with

4 General OBSI Setup - Probe position The current OBSI standard specifies use of an ASTM F2493 Standard Reference Test Tire (SRTT) (P225/60R16) avai

5 2.2 Connections Right Side Back Left Side Power Headphones Sensors