Conveners
A06.02 Electroacoustics and transducers arrays: P431
- Marko Horvat (University of Zagreb Faculty of EE and Computing)
- Manuel Melon (Université du Mans - LAUM - UMR 6613 CNRS)
- Thomas Gmeiner
A06.02 Electroacoustics and transducers arrays: S038
- Thomas Gmeiner
- Manuel Melon (Université du Mans - LAUM - UMR 6613 CNRS)
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Baptiste FOURRIER (IKT - Leibniz Universität Hannover)09/09/2026, 09:00A06 Electro-Acoustics
Open-ear clip-on earbuds, a growing consumer product category, place a transducer against the pinna without occluding the ear canal, preserving natural ambient awareness and improving wearing comfort over traditional headphones. Their low-occlusion design would make them attractive for research applications requiring simultaneous acoustic interaction with the real environment, such as spatial...
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Benjamin Pries (IKT - Leibniz Universität Hannover)09/09/2026, 09:00A06 Electro-Acoustics
Current headphone-based binaural audio playback systems rely on conventional stereo headphones with a single transducer per ear. Their frequency response, shaped by interactions between the sound field produced by the transducer, the headphone cup, and the pinna, is typically equalized first to enable hardware-independent playback. Individual adaptation to the user is then achieved using...
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Romain Degraeve (Le Mans Universite)09/09/2026, 09:00A06 Electro-Acoustics
An important aspect of loudspeaker development is understanding how structural geometry and material properties influence the small-signal frequency response and directivity. This question can be answered by the use of numerical methods such as FEA, which approximate the solution of the governing partial differential equations by solving their weak variational form over a discretised...
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Pierre Lecomte (LMFA UMR 5509 CNRS, Ecole Centrale de Lyon)09/09/2026, 14:20A06 Electro-Acoustics
Compact spherical loudspeaker arrays enable the synthesis of controllable directivities using loudspeakers distributed over a rigid spherical surface. However, most existing designs rely on a shared rear enclosure, leading to acoustic coupling between loudspeakers. This coupling requires the use of multiple-input multiple-output crosstalk cancellation systems.In this paper, we propose an...
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Juha Backman (Bang & Olufsen)09/09/2026, 14:40A06 Electro-Acoustics
Array design typically aims to direct the beam towards or away from a given direction. However, certain applications — such as surround channels in sound reproduction or acoustical measurements — require a wide polar pattern. This paper describes a method for achieving such a pattern using arrays in which individual transducers are fed with randomly phased signals.Traditional array design...
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Manuel Melon (Université du Mans - LAUM - UMR 6613 CNRS)09/09/2026, 15:00A06 Electro-Acoustics
Personal sound zones (PSZ) aims to create bright and dark acoustic zones within a space by filtering a reference signal to drive multiple loudspeakers. Adapting the control filters is challenging due to variations in acoustic conditions or shifts of the zones, since error microphones are assumed to be fixed in the zones and the estimated acoustic transfer functions cannot be updated.Under...
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Perttu Laukkanen (Akukon Ltd.)09/09/2026, 15:20A06 Electro-Acoustics
Spatial room acoustic measurements have become common practice in room and concert hall acoustics. The authors have been using different spatial microphone-probes in room acoustic measurements for several years. These microphone-probes typically consist of 4 to 8 microphone capsules either omni-directional or cardioid directivity pattern. Slight differences have been noticed in auralisation...
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Lukas Gölles (University of Music and Performing Arts)09/09/2026, 15:40A06 Electro-Acoustics
Curved line arrays are typically optimized through geometric curvature and, when needed, delay loading to realize a prescribed direct-sound level decay over distance. While this effectively controls broadband level distribution, spectral inconsistencies remain due to discretization, element-to-element variability, and mutual coupling. This work proposes an element-wise equalization method that...
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Louis Duparc (International Master's Degree in Electroacoustic and Audio)09/09/2026, 16:00A06 Electro-Acoustics
Electrodynamic loudspeaker suspension stiffness degrades over time, altering resonance frequency and compromising long term reliability. The aim of this paper is to characterize stiffness evolution during loading and recovery phases to isolate specific degradation mechanisms. An automated measurement system applies a continuous 20 Hz sine wave to induce high excursion, monitoring applied...
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