pure-tone average

pure-tone average

average in decibels of the thresholds for pure tones at 500, 1000, and 2000 Hz. In general, the pure-tone average should approximate the speech reception threshold.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
There was no significant change from preoperative baseline in pure-tone average or speech discrimination score in any patient.
Standardized methods for pure-tone average (PTA), speech discrimination score (SDS), stapedius reflex testing, and tympanometry were used to evaluate the patients.
Pure-tone average (PTA) thresholds across 0.5, 1.0, and 2.0 kHz are shown for each subject in Table 1.
We computed pure-tone average (PTA) at speech frequencies (0.5, 1, 2, and 4 kHz; speech-PTA) and high frequencies (3, 4, and 6 kHz; high-PTA) (Agrawal et al.
[Figure 1] shows Spearman's correlation between disease duration and pure-tone average ( r [sub]s = 0.288, P = 0.002).
When thresholds were greater than 20 dB on the hearing level (HL) scale (dB HL) and exhibited a ratio of low-frequency pure-tone average (LFPTA; 500-2,000 Hz) over high-frequency pure-tone average (PTA) (3,000-6,000 Hz) that was [greater than or equal to] 1.5 for the same ear, the subject's audiogram was disqualified because this configuration would not be associated with hazardous noise exposure.
They conclude that it is a feasible screening test to rule out significant hearing loss (pure-tone average > 40 dB).
MAIN OUTCOME MEASURE: Hearing loss, defined as audiometric threshold values of at least 16-dB hearing level based on a low or high pure-tone average. RESULTS: A total of 14.9% of children had low-frequency or high-frequency hearing loss of at least 16-dB hearing level, 7.1% had low-frequency hearing loss of at least 16-dB hearing level, and 12.7% had high-frequency hearing loss of at least 16dB hearing level.
The researchers evaluated hearing impairment as a pure-tone average greater than 25 decibels hearing level in either ear, and also measured word recognition at different sound levels and with male and female voices.
A longer, 25-item version of the scale was found to correlate with objective measures of hearing (p < .01) including pure-tone average (r = 0.61), spondee threshold (r = 0.59) and speech recognition (r = 0.42).
Successful treatment was defined as at least a 50% recovery of four-frequency pure-tone average relative to the unaffected, contralateral ear.
At audiometry, the air conduction pure-tone average (PTA) and bone conduction PTA of the right ear were 50 and 30 dB hearing level (HL), respectively.