Screening for hearing loss using the electronic whisper test: A prospective cross-sectional study.

Background: Hearing screening is a method for early identification of hearing loss. Hearing screening is widely used in hospitals as part of physical examination. However, some of them are difficult to operate outside the hospitals regarding portability and user-friendliness.

Validity of automated audiometry for hearing examination in patients with multidrug-resistant tuberculosis.

: The objective of this study was to test the validity of automated audiometry as a method of hearing examination in patients with multidrug-resistant tuberculosis. : This was a cross-sectional comparative study with a retrospective approach, using patient medical records. Patients with multidrug-resistant tuberculosis (MDR-TB) were recruited based-on medical records that met the inclusion and exclusion criteria at the Pulmonology outpatient unit, then referred to the Otorhinolaryngology outpatient unit of the Dr.

On- and off-frequency compression estimated using a new version of the additivity of forward masking technique.

On- and off-frequency compression at the 4000- and 8000-Hz cochlear places were estimated using a new version of the additivity of forward masking (AFM) technique, that measures the effects of combining two non-overlapping forward maskers. Instead of measuring signal thresholds to estimate compression of the signal as in the original AFM technique, the decrease in masker threshold in the combined-masker condition compared to the individual-masker conditions is used to estimate compression of the masker at the signal place. By varying masker frequency it is possible to estimate off-frequency compression.

Estimates of compression at low and high frequencies using masking additivity in normal and impaired ears.

Auditory compression was estimated at 250 and 4000 Hz by using the additivity of forward masking technique, which measures the effects on signal threshold of combining two temporally nonoverlapping forward maskers. The increase in threshold in the combined-masker condition compared to the individual-masker conditions can be used to estimate compression. The signal was a 250 or 4000 Hz tone burst and the maskers (M1 and M2) were bands of noise.