Pure-tone Audiometer

Pure Tone Audiometer

Estimation of pure tone hearing threshold is a part of hearing tests conducted in order to know the sensitivity of the human auditory system. This paper presents manual audiometer implemented in Matlab which can be used to conduct such measurements. Audiometer was calibrated by means of an artificial ear and pistonphone. Modified Hughson-Westlake method [1] usually used in manual audiometry is ...

The Correlation of Results between Pure Tone Audiometry and the Virtual Audiometer: A Simulated Air-Conduction Clinic-based Audiometer

Methods: Analytic, cross-sectional study set in a Philippine tertiary institution. Subjects were recruited from the outpatient department in September 2005 and comprised of cooperative, clinically normal and abnormal hearing individuals. Thirty-two subjects made 64 total ears tested (n=64), giving 0.90 correlation at 0.05 level of significance (α) (p = 0.05) and 99% power. Each subject underwen...

/JRt-*- ~7Sr Free Voice and Pure Tone Audiometer for Routine Testing of Auditory Acuity

Pure Tone Audiometry

Pure tone audiometry is the standard behavioral assessment of an individual’s hearing. The results of pure tone audiometry are recorded on a chart or form called an audiogram. In most cases a pure tone audiogram is easy to obtain and provides information about peripheral hearing acuity across the frequencies used in speech. It allows for a quick view of how well, or how poorly, an individual ca...

Off-response to pure tone burst is affected by the previous pure tone intensity

The auditory magnetic brain response, N1m, which is defined as a magnetic deflection occurring about 100 ms after the tone onset, varies depending on the stimulus interval. Hari et al. [1] measured the N1m responses to the onset of a 0.55-s white noise burst with four Stimulus Onset Asynchrony (SOA: 1.1, 2.2, 4.4, and 8.8 s) in different blocks. The results of their experiments indicated that t...