Virtual car Modifying

LMS Test.Lab Virtual Car Sound is a solution for sound design and sound quality target setting. You can also use it for advanced vibro-acoustic troubleshooting in the vehicle refinement stage. You can apply Virtual Car Sound to vehicles but can also use it to analyze rotating machinery product and component sounds.

You start from experimental or CAE data to generate a sound quality equivalent model (SQE) that classifies the interior car noise into powertrain, road/tire and wind noise. The SQE model contains the same sound quality features as the original sound. That means it can be used in subjective evaluations (replay, jury testing) and objective evaluations (order analysis, sound quality metrics)." For troubleshooting and target-setting applications, you can refine the model with a transfer path analysis model to study the different structure-borne and airborne path contributions.

This vehicle sound quality solution allows you to interactively drive the virtual vehicle while applying a variety of operating conditions which are a variation of speed, RPM, throttle, gear and braking variations. While driving, you can listen to generated sounds to simulate realistic operation conditions for a subjective evaluation. For objective evaluation and target setting, FFT-based spectral analysis is complemented with real-time sound quality metrics such as loudness, articulation index and roughness. Different sound sources and path contributions are displayed in real-time. Repeatable drive profiles and an external control mode provide flexibility.

You can modify all model components in real-time for what-if scenarios. Click-free switching between modified models provides straightforward A/B comparison under any operating condition.

Virtual Car Sound Capabilities

Virtual Car Sound provides you with these features:

• Interactive real-time multimedia engineering environment
• Single measurement to simulate sound under different driving conditions
• One-click interior noise decomposition from time data recordings
• Data measurement, decomposition, SQE model creation and simulation on one platform
• Multiple driving modes: free interactive driving, drive control by file and drive scenarios

Virtual Car Sound Benefits

Virtual Card Sound helps you:

• Evaluate sound at all development stages with CAE and experimental data input
• Set targets on a component level
• Save time by building models using limited operational data that has been automatically processed
• Perform a transfer path optimization using objective and subjective sound quality criteria