MAA Audiology: FM Systems

FM Systems:

Regardless of the distance between speaker and listener the FM receiver transmits the speech directly to the sound processor for listening, at a constant intensity level. The major factors that influence the quality of the speech signal are: background noise, reverberation, and distance. Cochlear implant recipients experience similar difficulties to hearing instrument users in challenging environments. It is well documented that improving the signal-to-noise ratio (SNR – Speech to noise ratio) for cochlear implant users through the use of an FM system significantly improves speech recognition in the presence of background noise.