scholarly journals Temporal integration of forward masking in normal and hearing‐impaired listeners

1980 ◽  
Vol 68 (S1) ◽  
pp. S38-S38
Author(s):  
G. Kidd ◽  
L. L. Feth ◽  
M. Corban ◽  
C. Beachler
Keyword(s):  
Temporal Integration ◽  
Forward Masking ◽  
Hearing Impaired

Masking of Noise Bursts by an Adjacent Vowel for Hearing-Impaired Listeners

1981 ◽  
Vol 24 (4) ◽  
pp. 576-579 ◽  
Author(s):  
Sally Revoile ◽  
J. M. Pickett ◽  
Mary Pat Wilson
Keyword(s):  
Forward Masking ◽  
Hearing Impaired ◽  
Frequency Bands ◽  
Temporal Intervals ◽  
Voiceless Stop

Some masking effects of synthetic vowels on adjacent noise bursts are reported for hearing-impaired listeners. The 200-ms vowels were similar to [ά] and [i]; the 50-ms noise bursts were in one of three frequency bands: .5 to 1.5, 1.5 to 4, or 4 to 6 kHz. With voiceless-stop-like temporal intervals between the stimuli, there was little backward or forward masking of the noise bursts by either vowel. Some forward masking occurred under proximate conditions of vowel and burst in time and frequency.

Auditory Time Constants for Off-Frequency Forward Masking in Normal-Hearing and Hearing-Impaired Listeners

1989 ◽  
Vol 32 (2) ◽  
pp. 298-306 ◽  
Author(s):  
David A. Nelson ◽  
Rosemary Pavlov
Keyword(s):  
Time Constant ◽  
Exponential Model ◽  
Normal Hearing ◽  
Forward Masking ◽  
Hearing Impaired ◽  
Time Constants ◽  
Temporal Masking ◽  
Short Term Adaptation ◽  
Probe Frequency ◽  
Parameter Values

Previous research has shown that frequency-specific estimates of auditory time constants for recovery from short-term adaptation can be made using a fixed-probe forward-masking procedure (Nelson & Freyman, 1987) if the masker and the probe stimuli are at the same frequency. This study examines the validity of time-constant estimates for off-frequency forward-masking conditions in which the masker frequency is below (900 Hz) or above (1100 Hz) the probe frequency (1000 Hz). Fixed-probe-level temporal masking functions were obtained from four normal-hearing and four hearing-impaired listeners. Auditory time constants were estimated with iterative least-squares procedures to derive parameter values for an exponential model of recovery from forward masking. After appropriate corrections were made for attenuation to the maskers provided by the auditory filter centered at the probe frequency, recovery from forward masking produced by either off-frequency or on-frequency maskers could be described by a single time constant. That time constant was around 50 ms in normal-hearing listeners and was larger in those hearing-impaired listeners who demonstrated moderate hearing loss at the probe frequency.

Sign in / Sign up

Export Citation Format

Share Document