Introduction
Transfer Path Analysis (TPA) is crucial for addressing acoustic comfort challenges in various modes of transport such as cars, trains, planes, and ships. Despite efforts during the design phase, further action is often needed post-prototype release to enhance comfort by identifying and modifying noise and vibration sources and their transfer paths.

OROS Comprehensive TPA Solution
OROS offers an innovative solution for TPA, developed in collaboration with ICR, which includes testing software, services, and instrumentation. This solution helps determine and rank noise and vibration contributions and their transmission paths.

Instrumentation
The solution provides high-end acquisition and analysis instrumentation tailored to NVH (Noise, Vibration, and Harshness) testing needs. It supports multichannel impact testing and in-vehicle data recording, with capabilities ranging from 2 to 32 channels, expandable to 1000 channels.

Software
The software component focuses on contribution ranking and extends analysis to a wider frequency range using coherent and energetic methods. It separates air-borne from structure-borne contributions and allows for synthesis calculations to ensure test validity.

Services
OROS offers consultancy services for NVH measurements, test data analysis, and problem-solving. They provide technical training for NVH engineers and customized training for specific applications, including electric motor noise characterization and sound quality analysis.

Applications
The solution is complemented by a range of applications such as Operating Deflection Shapes (ODS), Operational and Experimental Modal Analysis (OMA, EMA), sound power and quality analysis, and source localization using advanced techniques like Nearfield Acoustic Holography (NAH) and beamforming.

Conclusion
OROS's TPA solution is designed to meet the NVH testing requirements of the automotive industry, enhancing vehicle comfort, durability, and performance through comprehensive analysis and testing capabilities.