The Journal of Auditory Research, Volume 2C. W. Shilling Auditory Research Center., 1962 - Audiology |
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Page 13
MASKING EFFICIENCY OF WIDE BAND AND NARROW BAND NOISE ON 250 CYCLE TONE * FRED HARBERT , M.D. , D.Sc. , and DAVID GREEN , Ph.D. The purpose of this study was to determine the relative efficiency of wide band white noise versus a narrow band ...
MASKING EFFICIENCY OF WIDE BAND AND NARROW BAND NOISE ON 250 CYCLE TONE * FRED HARBERT , M.D. , D.Sc. , and DAVID GREEN , Ph.D. The purpose of this study was to determine the relative efficiency of wide band white noise versus a narrow band ...
Page 14
... noise and narrow band noise centered at 250 cps were obtained using the black attenuator of the Grason - Stadler audiometer for controlling the noise intensity and a tape recorder for supplying the noise . A standard interrupter switch ...
... noise and narrow band noise centered at 250 cps were obtained using the black attenuator of the Grason - Stadler audiometer for controlling the noise intensity and a tape recorder for supplying the noise . A standard interrupter switch ...
Page 15
... narrow band noise was used it was possible to mask out both the 70 and 80 db sensation levels of the 250 cps tone for 100 % of the subjects . The highest absolute intensity of narrow band masking required to completely mask out the test ...
... narrow band noise was used it was possible to mask out both the 70 and 80 db sensation levels of the 250 cps tone for 100 % of the subjects . The highest absolute intensity of narrow band masking required to completely mask out the test ...
Contents
Speech Reception Threshold and Discrimination Scores as a Function | 1 |
Masking Efficiency of Wide Band and Narrow Band Noise on 250 Cycle | 13 |
Speech Discrimination Scores and Threshold Measurements in | 21 |
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Common terms and phrases
Acoust amplitude amplitude modulation analysis of variance attenuator audiograms audiometer auditory cortex bands of noise Bekesy carrier phrase characteristic frequencies clicks clinical coefficient correlation cortex DECIBELS double talk earphone effect eighth nerve experimental exposure factor function GLORIG hearing level hearing loss Hirsh indicate inferior colliculus intelligibility scores interrupted noise interruption rate interval Jerger LOSS IN DECIBELS masked threshold masking noise masking tone mean neurons NITTS noise band noise level normal hearing obtained octave PB word presbycusis procedure Psychol pure tone thresholds quency range recorded recovery reliability response rise-fall round window S/N ratio sample sensation level sensitivity SHIFT IN DB significant single talk sound pressure sound pressure levels speaker speech discrimination scores speech reception threshold spondaic spread of masking standard deviations stimulus subjects Table techniques test frequencies test tone threshold curves threshold measurements tion variables vibration conditions white noise word lists