Audio-Frequency Induction Loops (AFILs) as a Design Materialfor Architectural Interactivity: An Illustrated Guide. Economidou, E., Hengeveld, B., Kubesch, M., Krischkowsky, A., Murer, M., & Tscheligi, M. In Proceedings of the 2021 ACM Designing Interactive Systems Conference, of DIS '21, pages 1201–1214, New York, NY, USA, 2021. Association for Computing Machinery.
Audio-Frequency Induction Loops (AFILs) as a Design Materialfor Architectural Interactivity: An Illustrated Guide [link]Paper  doi  abstract   bibtex   
Audio-frequency induction loops (AFILs) are commonly used as an assistive listening technology for hard-of-hearing individuals. They generate an electromagnetic field proportional to a sound source receivable by hearing aids. Our interactive system, the Sound of Space, is based on AFILs that generate a multi-dimensional soundscape in space. Cochlear implant (CI) listeners and hearing-aids wearers can experience the soundscape through bodily movement, whereas hearing individuals can experience it via a corresponding tangible device. While typical AFIL installations transmit a single sound source, in our interactive system we implement overlapping loops and their interference to locate multiple synchronised audio sources (i.e., corresponding electromagnetic fields) in space. The designed system is installed permanently in an integrative school for deaf, hard-of-hearing and hearing students and teachers. In this pictorial, we illustrate our design and implementation process and contribute our learnings of using AFILs as a design material for architectural interactivity.
@inproceedings{10.1145/3461778.3462070,
author = {Economidou, Eleni and Hengeveld, Bart and Kubesch, Moritz and Krischkowsky, Alina and Murer, Martin and Tscheligi, Manfred},
title = {Audio-Frequency Induction Loops (AFILs) as a Design Materialfor Architectural Interactivity: An Illustrated Guide},
year = {2021},
isbn = {9781450384766},
publisher = {Association for Computing Machinery},
address = {New York, NY, USA},
url = {https://doi.org/10.1145/3461778.3462070},
doi = {10.1145/3461778.3462070},
abstract = {Audio-frequency induction loops (AFILs) are commonly used as an assistive listening technology for hard-of-hearing individuals. They generate an electromagnetic field proportional to a sound source receivable by hearing aids. Our interactive system, the Sound of Space, is based on AFILs that generate a multi-dimensional soundscape in space. Cochlear implant (CI) listeners and hearing-aids wearers can experience the soundscape through bodily movement, whereas hearing individuals can experience it via a corresponding tangible device. While typical AFIL installations transmit a single sound source, in our interactive system we implement overlapping loops and their interference to locate multiple synchronised audio sources (i.e., corresponding electromagnetic fields) in space. The designed system is installed permanently in an integrative school for deaf, hard-of-hearing and hearing students and teachers. In this pictorial, we illustrate our design and implementation process and contribute our learnings of using AFILs as a design material for architectural interactivity.},
booktitle = {Proceedings of the 2021 ACM Designing Interactive Systems Conference},
pages = {1201–1214},
numpages = {14},
location = {Virtual Event, USA},
series = {DIS '21}
}

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