Hearing Aid Listening Devices

Personnel who dispense hearing aids often listen to them using some kind of listening device to checke if an aid is functioning, how it sounds, to check for different programmed environmental settings, or for any number of other reasons.  A representative sample of commonly-used devices to listen to hearing aids is shown in Figure 1. …

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Ear Impression Terms – Part 2

Terminology associated with ear impression material is sometimes confusing to those who take ear impressions on a routine basis.  This post continues the discussion on ear impression terms from a previous post. Compression Set   This is the amount of permanent deformation resulting when a material is compressed to a specific deformation for a specified…

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