Related Experiment Videos
[Presentation of a 16-filter hearing aid with selective amplification and compression]
J Genin1, C H Chouard, B Meyer
1Laboratoire de Recherches ORL, CHU Paris Saint-Antoine, Paris.
Summary
This study introduces a novel hearing aid device utilizing a Texas 320C25 microprocessor for real-time audio processing. The device analyzes sound and adjusts gain based on patient audiometry, offering improved hearing assistance.
Area of Science:
- Digital Signal Processing
- Audiology
- Biomedical Engineering
Context:
- Existing hearing aid technology limitations.
- Need for personalized audio gain adjustment.
- Advancements in microprocessor-based signal analysis.
Purpose:
- To develop and evaluate a novel hearing aid device.
- To implement real-time signal processing using Fourier transforms.
- To personalize amplification based on individual audiometric data.
Summary:
- A compact, battery-operated hearing aid employs a Texas 320C25 microprocessor for 16 kHz real-time signal analysis.
- Fourier transform is used to derive 16 energy levels (0-8 kHz), with gain adjusted per patient's stored audiometric profile.
- Reverse Fourier transform synthesizes the signal for the earphone, with performance compared to existing devices.
Impact:
- Potential for more effective and personalized hearing rehabilitation.
- Demonstrates feasibility of advanced digital signal processing in wearable audio devices.
- Provides a benchmark for future hearing aid technology development.