Acoustic Analysis

Octave Analysis

Noise is increasingly the subject of new regulations for the protection of human health and safety as well as for improving the environment in general. SO Analyzer Software for noise & vibration measurements and analysis provides a comprehensive range of applications from basic 1/3 octave spectrum analysis to the latest human factor analysis for sound engineering, product refinement and comparative product ranking. It serves as a real-time acoustic analyzer for fractional octave analysis according to ANSI S1.4 and IEC 60651 type 1.

Sound Intensity and Sound Power

The online sound intensity measurement module uses a standard dual microphone intensity probe to measure sound pressure, intensity and pressure-residual intensity index. Unlike standard single microphone pressure measurement this technique can be used in difficult environments that have high background noise or multiple sources to calculate sound power and perform sound source localisation. The acoustic intensity mapping option uses a 3D model and guided sound intensity measurements to quickly develop a 3D colour contour map for source localisation. SO Analyzer’s sound power module provides you with a range of standard methods, using either pressure or intensity measurements, to determine sound power emission levels and also includes the sound transmission loss calculation wizard. The ECMA 74 standard providing a method of characterization the audible significance of tones within a sound pressure measurement is also included.

Sound Quality

Sound quality is becoming more and more important: Product designers and developers have to find the “right” sound that attracts their customers. The SO Analyzer sound quality analysis module based on Zwicker loudness offers a range of functions to assess perceived sound quality and also includes pitch and warble analysis.

Human Vibration

For protection from mechanical vibration, exposure limits have been defined, for example, for the use of hand-held power tools or riding in vehicles. SO Analyzer’s human vibration module enables the evaluation of hand-arm and whole body vibration according to the latest ISO and BS standards.