Ansys Sound — Advanced NVH Analysis & Sound Quality Engineering

Ansys Sound is a comprehensive software suite for analyzing, designing, and optimizing the acoustic performance of products. It enables engineers to transform simulation data or physical recordings into immersive 3D soundscapes, allowing for the evaluation of sound quality and the design of active sound signatures.

• Psychoacoustic Analysis: Quantify human perception of sound using standardized metrics such as Loudness, Sharpness, Roughness, and Articulation Index.
• Sound Design & Synthesis: Create unique acoustic identities for electric vehicles (AVAS) and interior brand sounds using an intuitive, real-time synthesis engine.
• Acoustic Benchmarking: Listen to and compare simulation results from Ansys Fluent, Mechanical, or Maxwell to evaluate noise sources before physical prototypes exist.

Technical Performance & Signal Processing

• Interactive 3D Sound Perception: Experience sounds in a calibrated 360¡ VR environment to assess spatial acoustics and source localization in vehicle cabins or industrial cockpits.
• Advanced Order Tracking: Analyze noise and vibration relative to rotational speed (RPM) to identify critical resonances in electric motors, transmissions, and powertrains.
• Time-Frequency Analysis: Utilize high-resolution spectrograms and Wigner-Ville distributions to detect transient noises, clicks, and squeaks (BSR analysis).

Why Engineers Choose Ansys Sound?

In the transition to silent electric powertrains, sound design becomes a key brand differentiator. Ansys Sound bridges the gap between raw decibel levels and the actual human listening experience, ensuring products are not just quiet, but acoustically pleasing.

Key Operational Benefits

• EV & AVAS Compliance: Design and validate Acoustic Vehicle Alerting Systems (AVAS) to meet global regulatory safety standards for pedestrian protection.
• Troubleshooting & Root Cause: Isolate specific frequency components to identify which mechanical or aerodynamic source is causing cabin discomfort.
• Cross-Disciplinary Workflow: Seamlessly import vibro-acoustic data from Ansys multiphysics solvers to perform virtual jury testing and subjective sound evaluations.

License & Integration

Ansys Sound is available as a standalone suite or integrated into the VRXPERIENCE platform. It supports a wide range of hardware for high-fidelity playback and binaural recording. Contact our acoustics specialists for a technical consultation.

Frequently Asked Questions

What is Ansys Sound?

Ansys Sound is an acoustic analysis and sound quality engineering platform for NVH (Noise, Vibration, and Harshness) engineers. It enables analysis, design, and virtual validation of vehicle sound signatures including EV AVAS sounds, interior cabin acoustics, and active sound design for electric vehicles.

What is AVAS and why is it required for electric vehicles?

AVAS (Acoustic Vehicle Alerting System) is an artificially generated sound legally mandated for electric and hybrid vehicles at low speeds to alert pedestrians. UN Regulation No. 138 requires AVAS in most markets. Ansys Sound enables engineers to design, simulate, and validate AVAS signatures before physical prototyping.

What is psychoacoustic analysis in NVH engineering?

Psychoacoustic analysis evaluates sound quality using human perception metrics, including loudness, sharpness, roughness, and tonality rather than purely physical measurements. Ansys Sound applies these metrics to ensure vehicle sounds are technically compliant, perceptually pleasant, and brand-aligned.