Discriminability of Differences in the Rise Time of a Tone

Tenney, James

doi:10.1121/1.1937296

Cited by 5 publications

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“…The ability to discriminate different rates of onset has been explored by Tenney (1962), Pollack (1963), and Niib•lek (1965). B•k•sy (1960, pp.…”

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confidence: 99%

Loudness perception of signals of monotonically changing sound pressure

Small

1977

The Journal of the Acoustical Society of America

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Listeners were required to judge whether a 500-Hz stimulus, whose SPL was monotonically changing, was increasing or decreasing in loudness over its 2-sec duration. Performance was best when single stimuli wer•e presented in isolation. Providing a second, fixed SPL stimulus for use as a reference generally resulted in poorer performance especially as the initial SPL of the changing stimulus departed from that of the reference. It made little difference whether the variable was presented before or after the reference stimulus.Under optimal conditions listeners could discern changes as small as 0.25 dB/sec 75% of the time. The traditional differential threshold for stimuli whose SPL was not changing was 0.37 dB, a value similar to that reported by other investigators. The question as to whether judgments were being made on the basis of the rate of change of sound pressure per se, or the range over which SPL changed was not directly addressed by this experiment and was therefore not resolved.

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“…The ability to discriminate different rates of onset has been explored by Tenney (1962), Pollack (1963), and Niib•lek (1965). B•k•sy (1960, pp.…”

mentioning

confidence: 99%

Loudness perception of signals of monotonically changing sound pressure

Small

1977

The Journal of the Acoustical Society of America

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“…For stimuli having the intended onset durations, discrimination performance decreased monotonically with increasing onset duration (Rosen and Howell, 1981, 1983). Other investigators also questioned the categorical perception of the onset-duration continuum and suggested that the ability to discriminate or match onset durations rather follows Weber's law (Tenney, 1962; Pollack, 1963; van Heuven and van den Broecke, 1979; Hary and Massaro, 1982; van den Broecke and van Heuven, 1983; Kewley-Port and Pisoni, 1984; Smurzyński, 1985; Smurzyński and Houtsma, 1989), which states that the Weber fraction is constant.…”

Section: Introductionmentioning

confidence: 99%

“…However, Weber fractions are approximately constant over only a limited range of onset durations. Below this range, they consistently increase with decreasing onset duration (Tenney, 1962; Pollack, 1963; van Heuven and van den Broecke, 1979; van den Broecke and van Heuven, 1983; Kewley-Port and Pisoni, 1984). Moreover, Weber fractions may decrease with training (Smurzyński and Houtsma, 1989), and they depend on stimulus level.…”

Section: Introductionmentioning

confidence: 99%

Onset-Duration Matching of Acoustic Stimuli Revisited: Conventional Arithmetic vs. Proposed Geometric Measures of Accuracy and Precision

Friedrich

Heil

2017

Front. Psychol.

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Onsets of acoustic stimuli are salient transients and are relevant in humans for the perception of music and speech. Previous studies of onset-duration discrimination and matching focused on whether onsets are perceived categorically. In this study, we address two issues. First, we revisit onset-duration matching and measure, for 79 conditions, how accurately and precisely human listeners can adjust the onset duration of a comparison stimulus to subjectively match that of a standard stimulus. Second, we explore measures for quantifying performance in this and other matching tasks. The conventional measures of accuracy and precision are defined by arithmetic descriptive statistics and the Euclidean distance function on the real numbers. We propose novel measures based on geometric descriptive statistics and the log-ratio distance function, the Euclidean distance function on the positive-real numbers. Only these properly account for the fact that the magnitude of onset durations, like the magnitudes of most physical quantities, can attain only positive real values. The conventional (arithmetic) measures possess a convexity bias that yields errors that grow with the width of the distribution of matches. This convexity bias leads to misrepresentations of the constant error and could even imply the existence of perceptual illusions where none exist. This is not so for the proposed (geometric) measures. We collected up to 68 matches from a given listener for each condition (about 34,000 matches in total) and examined inter-listener variability and the effects of onset duration, plateau duration, sound level, carrier, and restriction of the range of adjustable comparison stimuli on measures of accuracy and precision. Results obtained with the conventional measures generally agree with those reported in the literature. The variance across listeners is highly heterogeneous for the conventional measures but is homogeneous for the proposed measures. Furthermore, the proposed measures show that listeners tend to under- rather than to overestimate the onset duration of the comparison stimuli. They further reveal effects of the stimulus carrier on accuracy and precision which are missed by the conventional measures. Our results have broad implications for psychophysical studies that use arithmetic measures to quantify performance when geometric measures should instead be used.

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Risset¹

1968

Ann. Télécommun.

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Discriminability of Differences in the Rise Time of a Tone

Cited by 5 publications

References 0 publications

Loudness perception of signals of monotonically changing sound pressure

Loudness perception of signals of monotonically changing sound pressure

Onset-Duration Matching of Acoustic Stimuli Revisited: Conventional Arithmetic vs. Proposed Geometric Measures of Accuracy and Precision

Sur certains aspects fonctionnels de l’audition

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