Forum Acusticum 2026

Session

A21.01 Automotive noise and vibration

A21.01

11 Sept 2026, 09:00

Conveners

A21.01 Automotive noise and vibration: P435

• Martin Czuka (AIT Austrian Institute of Technology)
• Manfred Haider (AIT Austrian Institute of Technology GmbH)

A21.01 Automotive noise and vibration: S151

• Manfred Haider (AIT Austrian Institute of Technology GmbH)
• Martin Czuka (AIT Austrian Institute of Technology)

4603. A Comparative study of transfer function between Target and Error microphone due to seat position changes for ARNC performance development (FA2026/291)

Kwihyun Kang (HYUNDAI MOBIS)

11/09/2026, 09:00

A21 Transportation Noise and Vibration

This study examines the influence of seat‑position changes on the transfer functions between the target point, representing the occupant’s ear location, and the error microphones installed at each seat to optimize Active Road Noise Control (ARNC) performance. In ARNC systems, error microphones remain fixed at predefined locations, while the target position varies with seat adjustment. This...

4604. Auditory Arrival Time Estimation for Approaching Vehicles With and Without Sound Level Cues and Azimuthal Angle Cues (FA2026/516)

Thirsa Huisman (Johannes Gutenberg University Mainz)

11/09/2026, 09:00

A21 Transportation Noise and Vibration

When a vehicle approaches, there are several acoustic cues that can inform about the arrival time of the vehicle (time-to-collision, TTC), such as the change in intensity at the pedestrian’s position or the change in azimuthal angle. But which cues do we actually make use of? To answer this question, we manipulated the availability of sound level and angle cues. In the normal condition, both...

4605. SPEAKeR-Project: Simulation-based Product Development of Acoustic Systems for Electric Vehicles for the Conceptual Implementation of Adjustable Directivity (FA2026/942)

Tim Kliem (Fachhochschule Dortmund)

11/09/2026, 14:20

A21 Transportation Noise and Vibration

As road traffic becomes increasingly electrified, Acoustic Vehicle Alerting Systems (AVAS) are gaining importance. Their development involves a fundamental trade-off: vulnerable road users must be reliably warned and protected, requiring compliance with legal specifications such as UN R138 and FMVSS 141 regarding frequency range and minimum sound pressure levels. At the same time, noise...

4606. EEG-Based Evaluation of AVAS Sound Signatures for Perceptual Assessment in Urban Environments (FA2026/811)

Manish Manohare (Transportation Research and Injury Prevention Centre, IIT Delhi)

11/09/2026, 14:40

A21 Transportation Noise and Vibration

The rapid adoption of electric vehicles (EVs) has led to regulatory mandates for Acoustic Vehicle Alerting Systems (AVAS) to ensure pedestrian safety at low speeds. While AVAS effectively compensate for reduced propulsion noise, their widespread deployment introduces new challenges for urban soundscapes, particularly when sound design neglects perceptual integration and contextual...

4608. Order-Based Spatial Decomposition in Higher-Order Ambisonics for Vehicle Interior Noise Analysis (FA2026/933)

Zhenxian Li (INSA Lyon, LVA UR677)

11/09/2026, 15:00

A21 Transportation Noise and Vibration

In multi-motor battery electric vehicles the loss of combustion masking makes the order-structured tonal noise of each drive unit perceptually salient, and units that share the same machine and single-speed gear ratio, such as the two wheel motors of one axle or the twin units of a symmetric dual-motor vehicle, hold their same-numbered orders within about one percent of each other whenever...

4609. Enhancement of composite firewall airborne insulation through locally resonant low frequency tuned vibration absorbers (FA2026/170)

Benjamin Morin (Autoneum Management AG)

11/09/2026, 15:20

A21 Transportation Noise and Vibration

Improving low‑frequency airborne insulation in automotive firewall panels is challenging because structure‑borne transmission dominates below 500 Hz, where traditional acoustic treatments are less effective. Measurements performed on a dash panel from a battery-electric-vehicle (BEV) revealed a pronounced transmission‑loss (TL) dip near 500 Hz, indicating a structural weakness linked to the...