Assistive technologies like hearing aids and cochlear implants can enhance communication for those with hearing loss, but many people who could benefit from these devices do not use them due to technological issues.
Performance issues with assistive technologies, particularly in noisy environments where these devices struggle to isolate speech from background noise, are one of the main reasons many choose to abstain from using tech like hearing aids and cochlear implants.
Hearing loss has a significant impact on daily communications; for those suffering, this can lead to frustration, social isolation and mental health challenges – so what can advancing technology do to help?
Allowing more accurate hearing through research and innovation
Hearing aids amplify sound but fail to filter out unwanted noise, making it harder for users to focus on conversations. Cochlear implants, while effective for some, may not provide a detailed enough representation of sound to distinguish speech in complex auditory environments.
Addressing these challenges requires new research into signal processing algorithms and real-world testing.
A promising approach includes developing portable, open-source platforms that allow researchers to customise sound processing algorithms for hearing aids and cochlear implants.
For example, tools like CCi-MOBILE enable the replacement of commercial digital processors with modifiable interfaces, allowing for real-time testing and adaptation of algorithms in everyday settings. Also, platforms like Open Master Hearing Aid (openMHA) and Tympan offer researchers access to flexible software and hardware solutions, encouraging the development of advanced sound processing techniques outside of traditional lab environments.
Exploring alternatives to traditional devices
Research efforts also extend to alternatives for individuals who can not benefit from conventional devices. Some collaborative initiatives, like the NIH BRAIN initiative, are exploring new technologies like auditory system damage. This can focus on improving precision and effectiveness in auditory stimulations, targeting specific brain areas for better hearing restoration.
Recent discussions between experts at the National Deafness and Other Communication Disorders Advisory Council highlighted ongoing plans to improve accessibility and affordability in hearing health care. Workshops aimed at revisiting and expanding on previous recommendations emphasise the need for over-the-counter hearing aids accessible to adults with mild to moderate hearing loss.
Researchers and developers are encouraged to use open-source tools and platforms, which can help with the breakthrough in hearing aids and cochlear implant technologies.
