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New Developments in Hearing Technology Dave Gordey, M. Sc. AUD (c)
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Let’s Talk About….. New Features of Hearing Aids Directionality Noise Reduction Adaptation Manager Datalogging New Designs And Next Generation in Hearing
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What is Directionality? Two microphones Optimal Port spacing Optimal mic alignment A good way to improve speech in noise! Directionality index (DI) - dB
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First Generation -Manual Directionality Underlying assumptions Target is in front Noise is elsewhere Manual switching required Microphone Directionality
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Now - Automatic Directionality Switches automatically between omni-directional and fixed directional microphones. Uses Artificial Intelligence to make decisions.
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Noise Reduction Noise interferes with speech understanding Likely linked to auditory fatigue Most environments have some noise present
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Noise Reduction 1.Modulation Based Noise Management 2. Tristate Noise Management Two Types
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Speech Noise Speech + Noise “Looks like noise” Minimal Modulations Highly Modulated First Generation of Noise Reduction - Modulation Detection
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Tristate Noise Reduction
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Automatic Adaptation Manager Automatic transition to the target prescription Customizable transition time (start and end- time) Smooth adaptation for a smoother acclimatization
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SKI-Slope Losses Focus on more than just audibility Less gain in HF More gain in MF More focus on transition region
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Data logging Hearing aid has a built in “artificial memory” Tells us about: Hearing aid use Operation of on/off switch Battery consumption
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Introducing Delta... The look of the future
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Delta Design Nothing like a traditional hearing aid Fits Mild to Moderate-Severe Understanding in noise Excellent bandwidth Advanced directionality Sound quality and comfort Open fitting/Micromold Speaker in the ear State-of-the-art automatics
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How can people with hearing loss become hearing empowered?
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Answer Connecting them to the Near World and the Far World
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The Near World Hearing our friends, family and colleagues in different environments. Hearing and understanding the sounds of our world Living in the soundscape.
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18 Connecting to the Far World
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The Far World The world is going wireless Multimedia is now a big part of our life Professional and Personal Lives We all need access to the far world
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20 Ramsdell and WWII Veterans
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21 Social Signal/Warning Primitive Disconnected from their Soundscape
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22 The importance of auditory spatial resolution (or why it’s good to know where sounds come from..) Demo with lights out
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23 Speech understanding in noise: De-construct the auditory scene, find the voice of interest Not just identifying components, but “following a voice” Speech events have little or no meaning in isolation – Meaning accumulates over time…
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24 What is the most important mechanism to maintain a persons Soundscape?
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25 Hint #1
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26 Hint #2
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27 Two ears are better than one Binaural hearing gives us a sense of place Binaural hearing allows us to localize
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28 Localization ability: Maintains SoundScape Improves Speech/Noise Binauaral hearing is most important for good localization ability
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29 How do Hearing Aids Currently Affect Localization ability
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Video Excitement and Innovation….
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Binaural Processing Spatial Sound: Ensures that auditory system is sent and accurate representation of the spatial environment 31
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32 Binaural DFC Unique - First DFC system ever to benefit from binaural processing Benefit - More precise feedback detection - Avoid “false positives” and common artifacts of conventional DFC systems. Conventional Epoq
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34 Extreme Bandwidth Unique - Bandwidth extends up to ~10,000 Hz Benefit - Improved sound quality - Better localization - Greater naturalness and fidelity.
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Extended Bandwidth & Audibility... can they hear it?
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36 Life Learning Unique 1. Detailed learning of Volume Control preferences – in many different types of environments Benefit - Convenience, ease of use - Discreetness (reduce need to use VC) - Volume is automatically adjusted to match each situation - Higher acceptance and long term satisfaction
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Phone and Streamer Demo video
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38 Streamer
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39 Streamer Benefits Mobile phone: Hassle free, wire free. Listen with both ears Connect to your IPOD - Stream music - directly into the hearing aids Easy to Use. Etc.
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Summary
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Questions?
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