By Mary Florentine (auth.), Mary Florentine, Arthur N Popper, Richard R. Fay (eds.)
The subject of loudness is of substantial predicament either in and outdoors of study laboratories. most folks have built an opinion approximately a few point of loudness, and lots of bitch in regards to the loudness of historical past sounds of their day-by-day environments and their affects on caliber of existence. furthermore, such sounds intrude being able to pay attention priceless sounds, and such covering may be specially frustrating for individuals with listening to losses, little ones, older adults, and non-native audio system of a language.
At an analogous time, now not all loud sounds are bad. a few loud sounds are very important for human health and wellbeing, corresponding to caution indications, while different loud sounds, similar to song, will be pleasant. in reality, loudness is vital for playing the dynamics of song. therefore, loudness is a pervasive and complicated factor, and person who has to be tested from a variety of views, and that's the function of this quantity.
Research in loudness has been played in lots of international locations, and this quantity is a world exercise with authors from Europe, Japan, and the U.S., making the quantity an try and offer an international community of knowledge approximately loudness. The editors are more than happy so that it will collect details on many features of loudness during this one quantity, in addition to to spotlight ways from many alternative perspectives.
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Additional info for Loudness
When comparing loudness matches obtained over a wide range of levels in different experimental studies, therefore, it is important to consider the sequence of stimulus levels presented within each study. Methods of measuring equal loudness vary among research laboratories and some of the methods have not been fully evaluated with regard to internal consistency. E. Marks and M. Florentine Fig. 4 Amount of temporal integration as a function of level. Data of Florentine et al. (1998) for the level difference between equally loud 5- and 200-ms tones at 1 kHz are plotted as a function of the SPL of the 5-ms tone.
J Exp Psychol Human Percept Perf 13:216–227. Zahorik P, Wightman FL (2001) Loudness constancy with varying sound source distance. Nat Neurosci 4:78–83. wwww Chapter 2 Measurement of Loudness, Part I: Methods, Problems, and Pitfalls Lawrence E. 1 Introduction It is a matter of everyday experience that sounds vary in their perceived strength, from the barely perceptible whisper coming from across the room to the overwhelming roar of a jet engine coming from the end of an airport runway. Loudness is a salient feature of auditory experience, closely associated with measures of acoustical level (energy, power, or pressure) but not identical to any of them.
1993), and 2 Measurement of Loudness: Methods, Problems, and Pitfalls 25 across normal hearing and hearing loss (Zwislocki and Jordan 1986; Stillman et al. 1993), JNDs fail to provide a constant unit of loudness. This failure was recognized early by Riesz (1933), who proposed a possible solution to the failure of JNDs to provide a constant unit of loudness across sound frequency. Riesz suggested that, at every sound frequency, one may ascertain the range of loudness from bottom to top and then determine the number of JNDs in this range.