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The loudness of directional sound fields

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The loudness of progressive sound waves has been investigated subjectively as a function of the orientation of the source at frequencies in the range 1600 c/s to 10 kc/s, and extending over the three principal planes referred to the listener. Simultaneously, measurements of sound pressure were made at the ears of the listeners, which provide a satisfactory interpretation of the subjective results. It is concluded that loudness is determined solely by the sound pressures at the left and right ears if binaural summation in accordance with approximately the “6 dB law” is assumed. The results are intended as corrections to existing equal loudness relations for normally-incident sound waves. An extension to diffuse fields is still in progress.
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Document Type: Research Article

Publication date: January 1, 1960

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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