directional microphone technology - Phonak

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• 48 adults, 2 sites • Presbycusis • Transmitter 3 inches from loudspeaker • Correlated HINT noise from 4 other loudspeakers • SuperZoom setting on HandyMic, Claro HI‟s. • Source: Valente 2002 FM Classroom February 2013
• Dynamic FM is different than fixed gain systems in that it adjusts the FM gain depending on the environmental noise level • Additional gain is added if the background noise level increases • Ambient noise levels are measured by the FM transmitter during speech pauses • If the ambient noise level rises to over 57 dB SPL, a command is sent from the transmitter to the Dynamic FM receivers to increase the FM Advantage • Examples: inspiro, SmartLink+, ZoomLink+, EasyLink+ and any 3 rd generation <strong>Phonak</strong> receiver (eg MLxi, ML9i to ML16i)
Page 1 and 2: Peter Stelmacovich FM Classroom and
Page 3 and 4: SNR in typical Listening situations
Page 5 and 6: FM Classroom February 2013
Page 7 and 8: Pediatric_A_GB without dNC with dNC
Page 9 and 10: • Improvements in SNR for directi
Page 13 and 14: 13 -35° 0° 35° - 60° 60° -90°
Page 15 and 16: • Directional microphones have pr
Page 17 and 18: • By moving a microphone from the
Page 19 and 20: 19 • Wireless, omnidirectional mi
Page 21 and 22: • Wear it at the correct location
Page 23: • To achieve an improvement in SN
Page 27 and 28: • Ambient noise levels are estima
Page 31 and 32: 1. Children with hearing loss that
Page 33 and 34: • LiSN-S PGA is a brand new diagn
Page 35 and 36: Run the test Professional clicks
Page 37 and 38: LiSN-S PGA‟s results mention clea
Page 39 and 40: X Even with amplification, the pati
Page 41 and 42: X FM Classroom February 2013 Even w

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