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Forum Acusticum 2026

8–12 Sept 2026
Europe/Vienna timezone

Session

A16.06 Active design and control of sound fields in enclosed spaces

A16.06
9 Sept 2026, 16:40

Conveners

A16.06 Active design and control of sound fields in enclosed spaces: S118

  • Jamilla Balint (Rohde Acoustics)
  • Sebastian Schlecht (Friedrich-Alexander-Universität Erlangen-Nürnberg)
  • Tapio Lokki (Aalto University)

Presentation materials

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  1. 4427. Contribution of feedback components to the instability of Reverberation Enhancement Systems: a Case Study (FA2026/228)
    Gian Marco De Bortoli (Aalto University)
    09/09/2026, 16:40
    A16 Room Acoustics

    Reverberation enhancement systems (RESs) are designed primarily for large concert halls, in which case the energetic and statistical properties of the feedback paths have been extensively studied. However, RESs are also used in smaller and less reverberant spaces, where room acoustic parameters differ from concert halls'. As the stability threshold, or gain-before-instability (GBI), of a RES...

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  2. 4428. On Regeneration and Colouration in Active Acoustics Systems (FA2026/231)
    William Blayney (L-Acoustics)
    09/09/2026, 17:00
    A16 Room Acoustics

    In active acoustics, controlled feedback is often used to extend a room’s reverberation time by regeneration. This brings an inherent risk of instability, while at stable gains a poorly conditioned feedback system can exhibit quality-limiting colouration. The gain before instability is usually estimated using frequency‑domain eigenvalue measures computed from the open‑loop response, and...

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  3. 4429. Perceptual optimization of active acoustic presets via iterative musician feedback (FA2026/483)
    Leon Merkel (Amadeus Acoustics GmbH)
    09/09/2026, 17:20
    A16 Room Acoustics

    Active acoustic systems whose algorithms are adapted to a room’s underlying passive acoustics can effectively modify acoustical conditions without compromising the room’s inherent character. This technology is particularly valuable for those rehearsal spaces that are designed to be highly absorbent in order to control sound strength. It can bridge the gap to the concert halls musicians are...

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  4. 4430. Simulation of Quality Parameters for Microphone Coverage in Sound- Reinforcement Planning (FA2026/585)
    Julian Ebert (Audio Communication Group, Technische Universität Berlin)
    09/09/2026, 17:40
    A16 Room Acoustics

    In sound-reinforced concert halls, theaters, and multipurpose venues, the microphones of the reinforcement system shape the perceived sound just as much as the loudspeakers do. Yet while loudspeaker coverage is routinely optimized during system design, the way microphones cover a stage or performance area is rarely quantified. Room-acoustic simulations based on geometrical and statistical...

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