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Related Experiment Videos

The Desired Sensation Level multistage input/output algorithm.

Susan Scollie1, Richard Seewald, Leonard Cornelisse

  • 1National Centre for Audiology, Faculty of Health Sciences, University of Western Ontario, London, Ontario, Canada NG6 1H1. scollie@nca.uwo.ca

Trends in Amplification
|January 21, 2006
PubMed
Summary

The Desired Sensation Level (DSL) Method version 5.0 offers updated hearing instrument fitting for all ages, incorporating modern technology and addressing user needs across diverse listening environments. This revision ensures audibility and comfort while optimizing compression for better outcomes.

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Area of Science:

  • Audiology
  • Hearing Instrument Technology
  • Pediatric Audiology

Background:

  • The Desired Sensation Level (DSL) Method is a widely used hearing instrument fitting formula.
  • Previous versions have been supported by extensive research, but required updates for modern hearing aid technology.
  • Pediatric and adult populations have distinct audiological needs and preferences.

Purpose of the Study:

  • To revise the Desired Sensation Level (DSL) Method (v5.0) for contemporary hearing instrument fitting.
  • To integrate advancements in hearing technology, such as multichannel compression and multimemory capabilities.
  • To address age-related differences in listening preferences and requirements for pediatric and adult users.

Main Methods:

  • Review of existing research on the DSL Method with pediatric and adult populations.

Related Experiment Videos

  • Incorporation of user preferences and listening requirements into the fitting formula.
  • Development of specific guidelines for selecting frequency response, compression, and overall prescription.

    • Main Results:

    • DSL v5.0 accommodates modern hearing instrument features like compression and expansion.
    • The revised method addresses loudness discomfort and audibility requirements.
    • It provides a framework for tailoring hearing aid prescriptions to individual needs in various environments.

    Conclusions:

    • DSL v5.0 represents a significant update to hearing instrument fitting protocols.
    • The revised method enhances audibility and comfort for infants, children, and adults.
    • Case examples demonstrate practical differences between DSL v4.1 and DSL v5.0 prescriptions.