Effects of signal duration and masker duration on detectability under diotic and dichotic listening conditions

Robinson, Donald E.; Trahiotis, Constantine

doi:10.3758/bf03207216

Cited by 30 publications

(29 citation statements)

References 6 publications

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“…•This result agrees with most later studies using moderate-to long-duration, narrow-band, low-frequency signals masked by broadband maskers (Tucker et al, 1968;Robinson and Trahiotis, 1972;Wier et al, 1977;Kohlrausch, 1986). However, substantial effects are sometimes observed when the signal duration is reduced, the masker bandwidth is narrowed, or the signal frequency is raised.…”

Section: Subjectssupporting

confidence: 93%

“…In Yost's (1985) study, the signal duration was 30 ms, as measured from the beginning of the rise to the end of the fall, whereas in experiments 1-4 the signal duration was 20 ms. Robinson and Trahiotis (1972), in measuring the influence of signal duration on forward fringe effects, found considerable differences in results obtained for short (37-ms) and long (261-ms) signals. •-Specifically, they found a much larger difference between continuous and pulsed maskers under dichotic conditions when the signal duration was short.…”

Section: Vl Experiments 5--signal Durationmentioning

confidence: 84%

“…The third explanation assumes, as did McFadden (1966), Robinson and Trahiotis (1972), and Yost (1985), that the masker fringe provides a reference or baseline against which the signal is detected. For example, in an NoS•r detection task an No forward fringe provides a reference of diotic cues.…”

Section: Subjectsmentioning

confidence: 97%

“…Thresholds improved as the duration of this fringe was increased. Performance was comparable to the continuous masker condition when the duration of the fringe exceeded 600 ms. Robinson and Trahiotis (1972) considered the influence of signal duration on this effect. Their results with a 261-ms signal replicated those of McFadden.…”

Section: Introductionmentioning

confidence: 99%

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Masker fringe and binaural detection

Gilkey

Simpson

Weisenberger

1990

The Journal of the Acoustical Society of America

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Yost [J. Acoust. Soc. Am. 78,901-907 (1985)] found that the detectability of a 30-ms dichotic signal (S pi) in a 30-ms diotic noise (No) was not affected by the presence of a 500-ms dichotic forward fringe (N pi). Kollmeier and Gilkey [J. Acoust. Soc. Am. 87, 1709-1719, (1990)] performed a somewhat different experiment and varied the onset time of a 25-ms S pi signal in a 750-ms noise that switched, after 375-ms, from N pi to No. In contrast to Yost, they found that the N pi segment of the noise reduced the detectability of the signal even when the signal was temporally delayed well into the No segment of the noise and suggested that the N pi segment of noise acted as a forward masker. To resolve this apparent conflict, the present study investigated the detectability of a brief S pi signal in the presence of an No masker of the same duration as the signal. The masker was preceded by quiet or an N pi forward fringe and followed by quiet, an No, or N pi backward fringe. The present study differs from most previous studies of the effects of the masker fringe in that the onset time of the signal was systematically varied to examine how masking changes during the time course of the complex fringe-masker-fringe stimulus.(ABSTRACT TRUNCATED AT 250 WORDS)

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Section: Subjectssupporting

confidence: 93%

Section: Vl Experiments 5--signal Durationmentioning

confidence: 84%

Section: Subjectsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Masker fringe and binaural detection

Gilkey

Simpson

Weisenberger

1990

The Journal of the Acoustical Society of America

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“…It has been found in several previous studies ͑McFad-den, 1966; Robinson and Trahiotis, 1972;Yost, 1985;Bernstein et al, 2006͒ that the binaural detection of an interaurally antiphasic tonal burst ͑S͒ added to a diotic burst of white noise ͑N0͒ can be easier when N0 and S are preceded by a "forward fringe" consisting of a sample of N0 alone than when N0 and S are simply pulsed synchronously in the absence of a fringe. One might think that this observation is closely related to what we found in experiments 2 and 3, but that is probably not the case.…”

Section: Discussionmentioning

confidence: 97%

Enhancement, adaptation, and the binaural system

Šerman

Semal

Demany

2008

The Journal of the Acoustical Society of America

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In a test sound consisting of a burst of pink noise, an arbitrarily selected target frequency band can be "enhanced" by the previous presentation of a similar noise with a spectral notch in the target frequency region. As a result of the enhancement, the test sound evokes a pitch sensation corresponding to the pitch of the target band. Here, a pitch comparison task was used to assess enhancement. In the first experiment, a stronger enhancement effect was found when the test sound and its precursor had the same interaural time difference (ITD) than when they had opposite ITDs. Two subsequent experiments were concerned with the audibility of an instance of dichotic pitch in binaural test sounds preceded by precursors. They showed that it is possible to enhance a frequency region on the sole basis of ITD manipulations, using spectrally identical test sounds and precursors. However, the observed effects were small. A major goal of this study was to test the hypothesis that enhancement originates at least in part from neural adaptation processes taking place at a central level of the auditory system. The data failed to provide strong support for this hypothesis.

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Binaural masking-level difference as a function of masker and test-signal duration

Zwicker

1984

Hearing Research

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Effects of signal duration and masker duration on detectability under diotic and dichotic listening conditions

Cited by 30 publications

References 6 publications

Masker fringe and binaural detection

Masker fringe and binaural detection

Enhancement, adaptation, and the binaural system

Binaural masking-level difference as a function of masker and test-signal duration

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