ArticleScientific reports2023
Improving speech perception for hearing-impaired listeners using audio-to-tactile sensory substitution with multiple frequency channels.
Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 11 citations in OpenAlex.
- Spectral peak picking improves tactile speech perception.Scientific reports · 2025Article
- Tactile stimulations reduce or promote the segregation of auditory streams: psychophysics and modeling.PLoS computational biology · 2025Article
- Sensory-substitution based sound perception using a spinal computer-brain interface.Scientific reports · 2024Article
- Improved tactile speech perception and noise robustness using audio-to-tactile sensory substitution with amplitude envelope expansion.Scientific reports · 2024Article
- Improved tactile speech robustness to background noise with a dual-path recurrent neural network noise-reduction method.Scientific reports · 2024Article
- Improved tactile speech perception using audio-to-tactile sensory substitution with formant frequency focusing.Scientific reports · 2024Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cochlear implants (CIs) have revolutionised treatment of hearing loss, but large populations globally cannot access them either because of disorders that prevent implantation or because they are expensive and require specialist surgery. Recent technology developments mean that haptic aids, which transmit speech through vibration, could offer a viable low-cost, non-invasive alternative. One important development is that compact haptic actuators can now deliver intense stimulation across multiple frequencies. We explored whether these multiple frequency channels can transfer spectral information to improve tactile phoneme discrimination. To convert audio to vibration, the speech amplitude envelope was extracted from one or more audio frequency bands and used to amplitude modulate one or more vibro-tactile tones delivered to a single-site on the wrist. In 26 participants with normal touch sensitivity, tactile-only phoneme discrimination was assessed with one, four, or eight frequency bands. Compared to one frequency band, performance improved by 5.9% with four frequency bands and by 8.4% with eight frequency bands. The multi-band signal-processing approach can be implemented in real-time on a compact device, and the vibro-tactile tones can be reproduced by the latest compact, low-powered actuators. This approach could therefore readily be implemented in a low-cost haptic hearing aid to deliver real-world benefits.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.