Selecting and Implementing FM Solutions Most hearing-impaired listeners notice they have difficulty hearing in certain situations. Understanding speech in the presence of noise (with or without hearing instruments) is one of the most common problems hearing-impaired individuals face (Kochkin, 1994). FM systems are used to overcome these communication obstacles. Noise is defined as any ... Article
Article  |   April 01, 2004
Selecting and Implementing FM Solutions
Author Affiliations & Notes
  • Patrick Henry
    Phonak, Warrenville, IL
  • Christine Jones
    Phonak, Warrenville, IL
Article Information
Hearing Aids, Cochlear Implants & Assistive Technology / Audiologic / Aural Rehabilitation / Articles
Article   |   April 01, 2004
Selecting and Implementing FM Solutions
SIG 7 Perspectives on Aural Rehabilitation and Its Instrumentation, April 2004, Vol. 12, 15-17. doi:10.1044/arii12.1.15
SIG 7 Perspectives on Aural Rehabilitation and Its Instrumentation, April 2004, Vol. 12, 15-17. doi:10.1044/arii12.1.15
Most hearing-impaired listeners notice they have difficulty hearing in certain situations. Understanding speech in the presence of noise (with or without hearing instruments) is one of the most common problems hearing-impaired individuals face (Kochkin, 1994). FM systems are used to overcome these communication obstacles.
Noise is defined as any signal other than what the listener wishes to hear. Noise is particularly annoying when it interferes with speech. Of course, the annoyance level is related to the signal-to-noise (SN) ratio. As the signal-to-noise ratio decreases, the annoyance and the difficulty understanding speech increase. Four major factors influence the signal-to-noise ratio and thus the quality of the speech signal. These are hearing loss, background noise, reverberation, and distance (Stock, Fichtl, & Heller, 1997).
First Page Preview
First page PDF preview
First page PDF preview ×
View Large
Become a SIG Affiliate
Pay Per View
Entire SIG 7 Perspectives on Aural Rehabilitation and Its Instrumentation content & archive
24-hour access
This Issue
24-hour access
This Article
24-hour access
We've Changed Our Publication Model...
The 19 individual SIG Perspectives publications have been relaunched as the new, all-in-one Perspectives of the ASHA Special Interest Groups.