View Tag: ‘frequency’

Volume 5

A Primer on Equivalent Volume, Impedance, and Couplers for Hearing Aids

So, next time you hear the word impedance, and your eyes start to glaze over, don’t panic! substitute “equivalent volume” and note that it is larger for lower frequencies and smaller for higher frequencies.

Volume 3

Frequency Lowering For All! – Is There Evidence for this Practice in Adult Fittings?

The manufacturer default settings for a hearing aid fitting are not always the most appropriate settings for the individual. Frequency lowering default settings are a good example, particularly since there has been an abundance of research interest in this area that can inform (impact?) clinical practice. In commercial hearing aids, one of two techniques is used: frequency compression or frequency transposition. Frequency compression is the more common technique.

Volume 2

In-Ear Monitors Need To Be Aimed at the Eardrum… True or False?

Inspired by a trip to the vet, Marshall Chasin explores the question of whether “In-Ear Monitors Need To Be Aimed at the Eardrum.”

Volume 1

What is “Soft,” “Medium,” and “Loud” for Speech and Music?

Marshall Chasin gives us the scoop on What is “Soft,” “Medium,” and “Loud” for Speech and Music?