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Advances in FM Technology Improving Performance in APD

Advances in FM Technology Improving Performance in APD. Miranda Weidle, MS Pediatric and FM Specialist. The ear will pick it up, the brain will process it. ADHD. Other Sensory Processing. SLI. Memory. Language. Attention. SPEECH PERCEPTION. (C) APD. LD. CAP. Learning.

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Advances in FM Technology Improving Performance in APD

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  1. Advances in FM Technology Improving Performance in APD Miranda Weidle, MS Pediatric and FM Specialist

  2. The ear will pick it up, the brain will process it. ADHD Other Sensory Processing SLI Memory Language Attention SPEECH PERCEPTION (C) APD LD CAP Learning Cognition Intelligence

  3. Hearing is an important sense for Learning • Parents and teachers capitalize on this – using the auditory-oral communication mode as the primary approach in the majority of learning situations • In our communication we engage in small talk, fiery discussions, romantic discourse, philosophy & politics,… • This emphasis on listening can pose difficulties for those who cannot use this information successfully Information carried from the ear to the brain must be of high fidelity or the information available to the listener will be faulty

  4. Sometimes people lose high-fidelity listening – despite normal hearing thresholds… • Auditory Processing Disorder • Attention Deficit/Hyperactivity Disorder • Specific Learning Disability • Multiple Sclerosis • Non-native speakers • Sensory Processing Difficulties, e.g. Asperger‘s syndrome, Autism Spectrum Disorder, Sensory Integration Disorder • Speech-Language Disorder • Cerebral Palsy • Traumatic Brain Injury

  5. …or near-to-normal hearing thresholds… • Unilateral Hearing Loss • Slight Hearing Loss • Permanent Conductive Hearing Loss • Fluctuating Conductive Hearing Loss • High-frequency Hearing Loss • Auditory Neuropathy/Dys-synchrony

  6. Children are more at risk than adults in the presence of background noise • Children bring a different listening to a learning or communicative situation • Background noise masks speech and reduces speech quality • Understanding speech means that we combine what we hear with what we know • The auditory system doesn’t mature until the age of 16 • Children don’t have the language and life experiences adults use to fill in gaps

  7. An Auditory Processing Disorder • Affects the efficiency & precision with which we handle auditory system, primarily in the central auditory system • 3-5 % of all children (Musiek, 1997) • 2 times more boys than girls • Many different possible causes

  8. Identification Process • Electrophysiologic Tests • Behavioral Test Monaural Low-Redundancy Speech Tests • Dichotic Speech Tests • Dichotic digit test • Temporal Patterning Tests • Frequency pattern sequences test • Binaural Interaction Tests • Rapidly Alternating Speech Perception (Schminky & Baran, 1999)

  9. LISN-S

  10. Audiologists can offer • Direct remediation therapy • Compensatory strategies • Environmental modifications

  11. Use of an FM system • Considered a corner-stone intervention • It gives the listener an upfront & high-quality access to the speaker‘s voice • Listeners can focus on content

  12. Evidence shows a clear FM benefit for children with learning difficulties • Increased attention • Optimal spoken language understanding • Higher academic achievement • More consistent on-task behavior • Maximum speech understanding in noise • Improvement in classroom behavior • Important for long-term benefits: having children tune in again (Blake et al., 1991; Musiek & Chermak, 1997 ; Stach et al., 1987; Crandell et al., 2002)

  13. Massive improvement of speech understanding in noisy situations Speech understanding in noise (Basler): Improvement 30 25 20 15 Improvement (dB SNR) 10 5 0 typical value for directional microphones FM 27 dB SNR improvement with FM system St.Gallen Study, 2004

  14. FM increases auditory memory skills "Telephone game" (Audiolog): Improvement after 4 months % 16 14 12 Improvement (procent points) 10 8 6 4 2 0 Experimental group (with FM) Control group (without FM) Improvement in auditory memory is significant better for the FM users compared to the controls St.Gallen Study, 2004

  15. [µV] Pz P3 P4 18 16 14 P2 12 P3 10 8 6 4 500 600 700 [ms] 2 N1 -100 100 200 300 400 -2 -4 -6 -8 -10 -12 -14 -16 -18 AERP results show brain change/maturation FM Group Matched Control Group onset ½ year 1 year (Friedrichs 2004)

  16. iSense

  17. The NEW Dynamic FM system for those with normal or near-to-normal hearing iSense Micro & iSense Classic with inspiro ) ) ) )

  18. iSense with Dynamic FM – inside Dynamic FM features: • Dynamic Speech Extractor • DataLogging FM • Monitoring with Earwax detection • ChannelFinder • SoundCheck • MultiTalker Network Specific for the iSense receivers

  19. Dynamic Speech Extractor Automatic brilliance Comprises several sub-features: • AFMA Adaptive FM Advantage • VAD Voice Activity Detection • EAFMA Easy Adjustment of FM Advantage

  20. Dynamic Speech Extractor Adaptive FM volume • iSense adapts volume automatically - based on the level of background noise • iSense’s output stays within safe limits – at all times

  21. Dynamic Speech Extractor Voice Activity Detector VAD in the transmitter mutes the receiver when the speaker stops talking • Benefit 1: ambient noise is not amplified during speech pauses • Benefit 2: FM channel noise is not audible when the receivers are silent

  22. Dynamic Speech ExtractorEasy Adjustment of FM Advantage • allows for quick and easy adjustment to individual needs and preferences in real conditions • separate adjustment of left/right receivers in case of binaural fitting • remote volume control for the iSense Micro receiver • via the wireless sub audio data link • ± 8 dB range, 2 dB step size • talk into the microphone and ask the listener for feedback

  23. Monitoring for daily reassurance Monitored parameters: • Receiver channel • FM receiver settings • FM gain • Battery status • User name / serial number • Earwax detection results (iSense Micro only!) The iSense wearer hears beeps confirming finalization of monitoring

  24. Datalogging FMProviding comprehensive insight • DataLogging FM data is accessible from FM SuccessWare 4.0 onwards, so only to the audiologist/FM fitter • DataLogging FM enables the fitter to give excellent support to FM users and their environment (parents, teachers, partner, friends) • DataLogging FM saves teachers to take notes when something happens • DataLogging FM provides detailed insight in the FM system‘s performance and use over time

  25. iSense products Receivers iSense Micro iSense Classic

  26. iSense Micro Lightweight and stylish • Ergonomic, beautiful design • Flexible and secure • Small in size • 6 colors • 312 battery

  27. iSense Micro – different parts Cerustop Pin battery door on/off One-size Flex, left/right compatible, no bending tool necessary iSense housing Retention

  28. iSense Micro – client preferences iSense Micro • micro-style for lightweight wearing • fully automatic • choice of colors to suit personal preferences • virtually invisible resembling a Bluetooth headset • remote volume control via inspiro • earwax detection

  29. iSense Classic – client preferences iSense Classic • affordable solution for binaural fitting • a directly accessible volume control • easy-to-operate receiver with clear LED indication • robust body-worn housing • contemporary MP3-player like design

  30. inspiro iLapel iBoom Dynamic FM Transmitters

  31. iSense – with “Dynamic FM” transmitter options

  32. Conclusions • FM systems prove beneficial for those challenged understanding and/or concentrating in background noise – despite normal or near-to-normal hearing thresholds • Lisn-S • Dynamic FM is a revolutionary new platform and has set the bar for FM in the classroom. • iSense Micro and iSense Classic - two NEW trendy FM receivers • The transmitter of choice for educational environments is inspiro

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