Acoustic source centering of musical instrument directivities using acoustical holography

Acoustic source centering of musical instrument directivities using acoustical holography

The acoustic center of a source is commonly defined as the point from which spherical wavefronts appear to diverge. Measuring directivities of sound sources with a surrounding spherical array whose geometric origin is not aligned with the acoustic center of the source can lead to distortions in dire...

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Hauptverfasser: Bellows, Samuel D., Leishman, Timothy W.
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description The acoustic center of a source is commonly defined as the point from which spherical wavefronts appear to diverge. Measuring directivities of sound sources with a surrounding spherical array whose geometric origin is not aligned with the acoustic center of the source can lead to distortions in directivity patterns. Thus, a method is desired to obtain both the far-field directivity pattern and to determine the acoustic center of a source. This work illustrates how acoustical holography can identify the reference frame from which spherical waves diverge by studying various musical instruments’ acoustic centers.
doi_str_mv 10.1121/2.0001371
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title Acoustic source centering of musical instrument directivities using acoustical holography
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