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[Hearing aids with distorsion].

J C Lafon1, T Gharbi

  • 1Laboratoire expérimental d'ORL, Université de Franche Comté.

Acta Oto-Rhino-Laryngologica Belgica
|January 1, 1989
PubMed
Summary

This study revisits the discovery of sound reinforcements in early amplifier tube hearing aids. It details the development of devices that use compensation and coded signals to enhance low-frequency information in distorted hearing aids.

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Area of Science:

  • Acoustics
  • Audiology
  • Signal Processing

Context:

  • Historical review of early hearing aid technology
  • Discovery of harmonic reinforcements in amplifier tubes
  • Development of signal processing for auditory devices

Purpose:

  • To trace the evolution of hearing aid technology focusing on low-frequency information
  • To explain the principles behind compensation and coded signals in hearing aids
  • To acknowledge the contributions to the field of auditory device development

Summary:

  • Recalls the discovery of fundamental and first harmonic reinforcements in older amplifier tube hearing aids.
  • Reports on the evolution and principles of devices employing compensation and coded signals.
  • Focuses on selecting low-frequency information in hearing aids with distortion.

Impact:

  • Provides historical context for advancements in hearing aid signal processing.
  • Highlights the importance of compensation and coded signals for low-frequency audibility.
  • Underscores the foundational discoveries in auditory amplification technology.

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