Intensity discrimination and loudness for tones in broadband noise
نویسندگان
چکیده
منابع مشابه
Asymmetry of masking between complex tones and noise: partial loudness.
This experiment examined the partial masking of periodic complex tones by a background of noise, and vice versa. The tones had a fundamental frequency (F0) of 62.5 or 250 Hz, and components were added in either cosine phase (CPH) or random phase (RPH). The tones and the noise were bandpass filtered into the same frequency region, from the tenth harmonic up to 5 kHz. The target alone was alterna...
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A classical problem in auditory theory is the relation between the loudness L(I) and the intensity just-noticeable difference ~JND! DI(I). The intensity JND is frequently expressed in terms of the Weber fraction defined by J(I)[DI/I because it is anticipated that this ratio should be a constant ~i.e., Weber’s law!. Unfortunately, J(I) is not a constant for the most elementary case of the pure t...
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We present evidence that the psychophysical function relating loudness to sound pressure is governed by a nonlinear gain control system, one of whose functions is to protect the sensory system from overload. Specifically, the loudness function is altered nonlinearly when loud sounds are added in an identification task previously containing only soft sounds but not vice
متن کاملLoudness growth in forward masking: relation to intensity discrimination.
The growth of loudness of a tone burst following an intense forward masker was measured as a function of the tone level. The level of the forward-masked tone was adjusted to balance the loudness of a standard tone presented without a forward masker, using a 2AFC, double-staircase, tracking procedure. The forward masker was a 90-dB SPL, 100-ms, 1000-Hz pure tone. The standard tone and the masked...
متن کاملEqual-loudness-level contours for pure tones.
Equal-loudness-level contours provide the foundation for theoretical and practical analyses of intensity-frequency characteristics of auditory systems. Since 1956 equal-loudness-level contours based on the free-field measurements of Robinson and Dadson [Br. J. Appl. Phys. 7, 166-181 (1956)] have been widely accepted. However, in 1987 some questions about the general applicability of these conto...
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ژورنال
عنوان ژورنال: Perception & Psychophysics
سال: 1990
ISSN: 0031-5117,1532-5962
DOI: 10.3758/bf03208170