Loudness Change in Response to Dynamic Acoustic Intensity

Autor/inn/en	Olsen, Kirk N.; Stevens, Catherine J.; Tardieu, Julien
Titel	Loudness Change in Response to Dynamic Acoustic Intensity
Quelle	In: Journal of Experimental Psychology: Human Perception and Performance, 36 (2010) 6, S.1631-1644 (14 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0096-1523
DOI	10.1037/a0018389
Schlagwörter	Acoustics; Change; Auditory Perception; Music; Speech; Adults; Foreign Countries; Australia + Suchen Sie Ihr Suchwort? Akustik; Wandel; Auditive Wahrnehmung; Akustische Wahrnehmung; Musik; Speaking; Sprechen; Ausland; Australien
Abstract	Three experiments investigate psychological, methodological, and domain-specific characteristics of loudness change in response to sounds that continuously increase in intensity (up-ramps), relative to sounds that decrease (down-ramps). Timbre (vowel, violin), layer (monotone, chord), and duration (1.8 s, 3.6 s) were manipulated in Experiment 1. Participants judged global loudness change between pairs of spectrally identical up-ramps and down-ramps. It was hypothesized that loudness change is overestimated in up-ramps, relative to down-ramps, using simple speech and musical stimuli. The hypothesis was supported and the proportion of up-ramp overestimation increased with stimulus duration. Experiment 2 investigated recency and a bias for end-levels by presenting paired dynamic stimuli with equivalent end-levels and steady-state controls. Experiment 3 used single stimulus presentations, removing artifacts associated with paired stimuli. Perceptual overestimation of loudness change is influenced by (1) intensity region of the dynamic stimulus; (2) differences in stimulus end-level; (3) order in which paired items are presented; and (4) duration of each item. When methodological artifacts are controlled, overestimation of loudness change in response to up-ramps remains. The relative influence of cognitive and sensory mechanisms is discussed. (Contains 1 footnote, 2 tables, and 8 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10