Open in new window
Title (eng)
Perceived spatial extent of local active noise control for broadband disturbances
Author
Felix Holzmüller
Author
Alois Sontacchi
Abstract (eng)
This paper investigates the perceived spatial extent of a local active noise control system for different types of disturbances. Several publications determined size and shape of the zone of quiet for various arrangements through analytical and numerical methods. However, these studies have often overlooked human perception, focusing solely on technical properties. Therefore, a listening experiment has been conducted to determine the perceived size of the zone of comfort in a scenario close to reality, using an active headrest setup. Several operational frequency limits for different types and directions of broadband disturbances are examined. Within this experiment, lateral transitions to the front and head rotations at the target position have been considered. Statistically consolidated subjective ratings exhibit limits of around 2 cm to 4 cm for lateral transitions, with an expected decrease towards higher frequencies. When comparing participants’ answers to measurements, the majority of the median responses converge at a point with loudness reduction of 20 %. The rotational limits of 7° to 15° are not as dependent on frequency, but are confined by the distinct perception of the secondary sources as well.
Keywords (eng)
ANCActive ControlActive Noise ControlActive Noise CancellationNoise ControlNoise CancellationNoiseLoudnessHeadrestBroadbandIACFIACC
Type (eng)
other
Language
[eng]
Persistent identifier
https://phaidra.kug.ac.at/o:134790
URI
https://aes2.org/publications/elibrary-page/?id=22616
Is in series
Title
Proceedings of the AES 5th International Conference on Automotive Audio
Issue
5
Issued
2024-06-26
Publication
Audio Engineering Society
Version type (eng)
version of record (published version)
Date issued
2024-06-14
Access rights (eng)
open access
License
All rights reserved