Smartphone Technology Improves Hearing Devices

Author: University of Texas at Dallas
Published: 2015/02/06 - Updated: 2021/09/08
Peer-Reviewed: N/A
Contents: Summary - Main - Related Publications

Synopsis: Harnessing the power of smartphones to improve life of people who use hearing assistive devices including hearing aids, cochlear implants and personal sound amplifiers. Current hearing aids don't enhance speech signals optimally in an automatic manner. The success of this project will open the door to the development of a wide collection of smartphone apps to be used in conjunction with hearing aid devices. UT Dallas researchers are especially interested in the automatic classification of various background noise signals and enhancement of both quality and intelligibility of speech signals in noisy environments and crowded places.

Main Digest

Many scientists agree: The smartphone offers many applications and has become one of the most sophisticated technologies out there. With the support of a $522,000, two-year grant from the National Institutes of Health, a UT Dallas team wants to harness the power of smartphones to help improve the quality of life of people who wear hearing assistive devices (HAD), including hearing aids, cochlear implants and personal sound amplifiers.

Also known as "Personal Sound Amplification Devices," or by the acronym PSAP, are defined by the U.S. Food and Drug Administration as wearable electronic products that are intended to amplify sounds for people who are not hearing impaired. They are not hearing aids, which the FDA describes as intended to compensate for impaired hearing. PSAPs can be a useful alternative to a hearing aid.

"Current hearing assistive devices are able to fit inside or behind the ear, but come with small, not very powerful processors to keep the device small, low power and low cost," said Dr. Issa Panahi, associate professor of electrical engineering in the Erik Jonsson School of Engineering and Computer Science and principal investigator of the research.

"On the other hand, smartphones used by billions of people have very powerful processors and other features such as large memories, microphones, speakers, wireless technology and long-lasting batteries that could aid HAD wearers."

"Current hearing aids don't enhance speech signals optimally in an automatic manner. The success of this project will open the door to the development of a wide collection of smartphone apps to be used in conjunction with hearing aid devices."

Dr. Issa Panahi,associate professor of electrical engineering in the Erik Jonsson School of Engineering and Computer Science HAD algorithms can differentiate between a limited number of noises, Panahi said. More sophisticated algorithms are needed to cover more types of background noise signals, and these algorithms for noise classification and speech enhancement require more powerful processors and additional power consumption - the capabilities that smartphones can provide.

Continued below image.
Dr. Issa Panahi, associate professor of electrical engineering in the Erik Jonsson School of Engineering, is part of a UT Dallas research team looking to tap into the power of smartphones to boost the quality of hearing assistive devices. Photo: University of Texas at Dallas
Dr. Issa Panahi, associate professor of electrical engineering in the Erik Jonsson School of Engineering, is part of a UT Dallas research team looking to tap into the power of smartphones to boost the quality of hearing assistive devices. Photo: University of Texas at Dallas
Continued...

UT Dallas researchers are especially interested in the automatic classification of various background noise signals and enhancement of both quality and intelligibility of speech signals in noisy environments and crowded places.

"Current hearing aids don't enhance speech signals optimally in an automatic manner," Panahi said. "The success of this project will open the door to the development of a wide collection of smartphone apps to be used in conjunction with hearing aid devices."

The research team also includes Dr. Nasser Kehtarnavaz, professor of electrical engineering in the Jonsson School, and Dr. Linda Thibodeau, a professor in the School of Behavioral and Brain Sciences and member of the Callier Center for Communications Disorders.

"We are lucky at UT Dallas that we have the Callier Center," Panahi said. "Not many universities have the technological, signal processing, real-time algorithm development, and engineering capabilities and experiences, as well as expertise in clinical testing and interfacing with HAD users in one place."

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This quality-reviewed publication pertaining to our Disability Apps section was selected for circulation by the editors of Disabled World due to its likely interest to our disability community readers. Though the content may have been edited for style, clarity, or length, the article "Smartphone Technology Improves Hearing Devices" was originally written by University of Texas at Dallas, and submitted for publishing on 2015/02/06 (Edit Update: 2021/09/08). Should you require further information or clarification, University of Texas at Dallas can be contacted at utdallas.edu. Disabled World makes no warranties or representations in connection therewith.

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