Soft-db OBSI Software User Guide Manual do Utilizador descarregar pdf (Página 5)

1 Introduction

Congratulations on your purchase of the OBSI Module.

The OBSI Module is a powerful tool to perform tire-pavement noise according to AASHTO TP 76-10

standard method. This software combines the measurement and post-processing tools to produce

high quality results.

The OBSI Module is intended to run on an I-Track System, but can also be used with an Alto-6 using

a stand alone computer. The software can also be installed on a stand alone computer to use the

post-processing tools.

General Specifications

Measurement Types

• Sound Intensity

• Sound Pressure

• Coherence

• PI Index

• Audio signals

• Vehicle speed

• Vehicle traveled distance

Display Types

• 1/3 Octave band

• FFT

• Time History

• Numerical indicators

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Soft-db OBSI Software User Guide Manual do Utilizador Página 5