Hearing Aid Having Greatly Improved Signal-to-Room Noise Ratio

Abstract

The objective of this project is to replace existing hearing aid (HA) designs with one incorporating an adaptive noise-reduction process, in order to reduce room noise received through a microphone to be called the Primary sensor. The Primary sensor is paired with a second, or Reference, sensor which feeds into a bank of filters called a spectral equalizer. Both sensors then feed into an adaptive filter which reduces the noise but retains the Target Signal.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 19, 1995
Accession Number
ADA637140

Entities

People

  • Harry B. Miller

Organizations

  • Naval Undersea Warfare Center

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Sensors

DTIC Thesaurus Topics

  • Acoustic Absorption
  • Acoustic Impedance
  • Adaptive Filters
  • Comb Filters
  • Filters
  • Free Field
  • Frequency
  • Interferometers
  • Microphones
  • Noise
  • Noise Reduction
  • Radiation Patterns
  • Ship Noise
  • Ships
  • Signal Processing
  • Undersea Warfare
  • Warfare

Fields of Study

  • Engineering

Readers

  • Acoustics.
  • Phased Array Antenna Design.
  • Sensor Fusion and Tracking Systems.