Journal article
Standards: Clarification of Some Hearing Aid Terminology: Bands and Channels versus Handles; First‐Order versus Second‐Order Microphones
Acoustics today, Vol.5(3), pp.39-42
07/2009
DOI: 10.1121/1.3238125
Abstract
The digital hearing aid was first introduced to the US in the late 1980s. Due, in part, to its large size and high power consumption, the first marketing attempt was not successful. In the mid‐90s ear‐level digital hearing aids made their way to the market and now account for nearly all hearing aids sold. In fact, many manufacturers have discontinued their analog products in favor of these higher‐tech, easier‐tomanufacture options. How they work The digital hearing aid performs its complex operations in one or more digital signal processors that are packaged in miniature integrated circuits (ICs). Sound received by a microphone is converted to analog electrical voltages and then converted to a digital format by analog‐to‐digital (A‐to‐D) converters. This process is reversed at the output when electrical voltages are directed to a transducer (usually called a receiver) to generate sound. The digital hearing aid is typically fitted by adjusting programmable microprocessors which control the hearing aid's smart internal micro‐signal processors using “controls” or “handles” on the computer's graphic user interface (GUI) that is provided by each digital hearing aid manufacturer.
Details
- Title: Subtitle
- Standards: Clarification of Some Hearing Aid Terminology: Bands and Channels versus Handles; First‐Order versus Second‐Order Microphones
- Creators
- Ruth A. Bentler - University of IowaBarbara Kruger - Kruger Associates Inc. 37 Somerset Drive, Commack, New York, 11725
- Resource Type
- Journal article
- Publication Details
- Acoustics today, Vol.5(3), pp.39-42
- DOI
- 10.1121/1.3238125
- ISSN
- 1557-0215
- eISSN
- 1557-0223
- Number of pages
- 4
- Language
- English
- Date published
- 07/2009
- Academic Unit
- Communication Sciences and Disorders
- Record Identifier
- 9984384322902771
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