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Wireless telephones and hearing aids: an overview
1Lexington Center for the Deaf, Queens, New York, USA.
Journal of the American Academy of Audiology
|July 7, 2001
Summary
Wireless telephones generate electromagnetic interference (EMI), impacting hearing aid usability. Digital phones produce more EMI than analog ones, requiring further design for accessibility.
Area of Science:
- Audiology
- Electromagnetics
- Telecommunications
Background:
- Wireless telephones are increasingly prevalent.
- Many wireless telephones interfere with hearing aid functionality.
- Electromagnetic interference (EMI) is the primary cause of this disruption.
Purpose of the Study:
- To investigate the extent of electromagnetic interference (EMI) from wireless telephones.
- To assess the impact of this EMI on hearing aid users.
- To determine the accessibility of current wireless telephones for individuals with hearing aids.
Main Methods:
- Analysis of electromagnetic interference (EMI) levels emitted by various wireless telephones.
- Evaluation of the interaction between wireless telephone EMI and hearing aid performance.
- Comparison of EMI levels between digital and analog wireless telephone technologies.
Main Results:
- Wireless telephones generate significant electromagnetic interference (EMI).
- Digital wireless telephones exhibit substantially higher EMI levels compared to analog models.
- This EMI actively interferes with the normal operation of hearing aids.
Conclusions:
- Current wireless telephones pose accessibility challenges for hearing aid users due to EMI.
- Digital wireless telephone technology requires further development to mitigate interference.
- Enhanced design is necessary to ensure wireless telephone accessibility for the hearing impaired.
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