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Wireless assistive listening devices (ALDs), such as induction loops, radio-frequency transmitters, and digital streaming systems, improve accessibility for people with hearing loss by transmitting from a venue’s sound system directly to the listener. Today, ALDs are used primarily for lectures and performances. When paired with advanced hearing devices, however, they could form part of an augmented listening system that lets users "remix" sounds in their environment, including from loudspeakers in public spaces. For example, users could amplify public announcements or suppress background music while having a conversation. In the proposed system, a binaural adaptive filter uses the ALD signal to estimate the loudspeaker sound at the ears. The hearing device can then either enhance or remove the loudspeaker sound in the hearing device output while preserving other nearby sounds. We demonstrate the proposed system using several commercial ALDs and assess the effects of delay, bandwidth, distortion, and noise on real-world system performance.
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Forgetting in social chains: the impact of cognition on information propagation.
Listening to a speaker selectively practicing previously encoded information leads to better memory for the practiced information, but at the same time results in induced forgetting of related memories. These effects have been found to occur due to the concurrent, and covert, retrieval of information on the part of the listener. Using a modified version of the method of serial reproduction (Bartlett, 1932), this study explored the degree to which rehearsal and retrieval-induced forgetting effects propagated in 64 3-person-chains of connected participants. We manipulated the degree of concurrent retrieval from the part of the listener by activating high and low relational motivations during the listening task. We showed that the degree of propagation of retrieval-induced forgetting was larger when concurrent retrieval was activated (high-relational motivation) than when concurrent retrieval was attenuated (low-relational motivation). This study provides a framework that aims to bridge between micro-level cognitive phenomena and macro-level social dynamics.
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- Award ID(s):
- 1748285
- PAR ID:
- 10124833
- Date Published:
- Journal Name:
- Journal of cognition and culture
- Volume:
- 18
- Issue:
- 3-4
- ISSN:
- 1568-5373
- Page Range / eLocation ID:
- 390-409
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Journal Article:
- https://doi.org/15685373-12340036
