Equivalent threshold sound pressure levels (ETSPLs) for Oscilla H210A circumaural audiometric headphones.

Objective: To determine ETSPLs for the Oscilla H210A circumaural audiometric headphones.

Design: ETSPL measurements were performed for 11 audiometric frequencies with the ISO 8253-1 (2010) bracketing procedure.

Study Sample: The study was based on 25 otologically normal test subjects.

Influence of response-time limits on automated hearing threshold determination.

Objective: In automated hearing threshold determination procedures, prespecified response- time limits can be applied to evaluate whether a stimulus was truly heard by checking whether the test subject reacts to the onset and the offset of the stimuli within given time intervals. The influence of different response-time limits on the threshold of normal-hearing test subjects was investigated.

Design: Two-stage hearing threshold level measurements applying the ISO 8253-1 (2010) bracketing procedure were performed.

Temporal integration of infrasound at threshold.

Infrasounds are signals with frequencies below the classical audio-frequency range, i.e., below 20 Hz.

Free-field correction values for RadioEar DD65v2 circumaural audiometric headphones.

Objective: Free-field correction values were measured for RadioEar DD65v2 audiometric headphones.

Design: Free-field correction values, that is, the difference - between the free-field sensitivity level and the ear simulator sensitivity level , were determined by loudness level comparisons between the headphone and a plane progressive wave in a free sound field.

Study Sample: The study was based on 17 otologically normal test subjects.