Influence of transducer types on bone conduction hearing thresholds.

ABSTRACT:

Objective

Different types of bone conduction transducers with different physical and electro-acoustic properties are available for audiometric hearing threshold measurements. The reference equivalent threshold vibratory force levels (RETVFL) specified in ISO 389-3 are based on measurements conducted with the B71 and KH70 transducers but apply to all types of transducers available for bone conduction audiometry. The objective of this study was to compare bone conduction hearing thresholds measured by different transducers.

Design

In a prospective study the hearing thresholds were measured psychometrically between 125 Hz and 8000 Hz using the Radioear B71, B81 and Präcitronic KH70 transducers.

Study sample

Twenty-one normal hearing participants and fifteen hearing impai

SUBMITTER: Frohlich L 

PROVIDER: S-EPMC5895012 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature