The effect of marker parameters on gap discrimination

Authors

  • S.M. Abel Hearing Res. Lab., Samuel Lunenfeld Res. Inst., Mount Sinai Hospital, Toronto, Ont., Canada
  • M.B. Cheskes Hearing Res. Lab., Samuel Lunenfeld Res. Inst., Mount Sinai Hospital, Toronto, Ont., Canada

Keywords:

hearing, marker rise, marker decay, marker parameters, gap discrimination, normal-hearing listeners, marker frequency, 500 Hz, 4000 Hz, 5 to 100 ms

Abstract

A preliminary investigation was conducted of the effects on gap discrimination of variation in marker rise/decay, in combination with other marker parameters. Three well-practised normal-hearing listeners participated. In each, the just noticeable increment (?t) was measured for silent gaps of 10, 20 and 100 ms, within the context of 16 different marker conditions. These reflected variations in bandwidth (octave and 1/3 octave), centre frequency (500 and 4000 Hz) intensity (75 and 85 dB SPL) and rise/decay time (5, 25 and 50 ms). The results showed that ?t increased significantly with an increase in rise/decay time. Marker intensity and bandwidth had no effect. Discrimination improved with an increase in marker frequency only for the longest gap, given the shortest rise/decay

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Published

1991-07-01

How to Cite

1.
Abel S, Cheskes M. The effect of marker parameters on gap discrimination. Canadian Acoustics [Internet]. 1991 Jul. 1 [cited 2021 Oct. 26];19(3):31-6. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/640

Issue

Section

Technical Articles