Loudness Discomfort Levels for Pure Tones and Noise
نویسندگان
چکیده
منابع مشابه
Equal-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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Studies of loudness change for tones with linearly varying levels using different loudness rating methods, such as direct estimation or indirect estimation based on the start and end levels, have revealed an asymmetry depending on the direction of change (increasing vs decreasing). The present study examines loudness asymmetry between increasing and decreasing levels for 1-kHz tones over the ra...
متن کاملAsymmetry 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...
متن کاملModeling the relation between the intensity just-noticeable difference and loudness for pure tones and wideband noise
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...
متن کاملAcoustic reflex threshold and loudness discomfort.
OBJECTIVE Trying to find an accurate relation between loudness discomfort level and acoustic reflex threshold. METHODS Seventy patients were involved in this study. Ten normal patients, 30 patients of unilateral conductive hearing loss and 30 patients of unilateral or bilateral, mild to moderate sensorineural hearing loss were tested by 1, 2, KH2 pure tones, 0.5, 1, 2, 4, 8 KHz narrow band no...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1972
ISSN: 0001-4966
DOI: 10.1121/1.1982050