This letter synthesizes musical instrument directivities by sequentially rotating a loudspeaker through multiple orientations. The synthesis is conducted in a spherical harmonic domain using the actual measured directivity of a commercial loudspeaker and an open database of musical instrument directivities. The letter further proposes a practically useful set of 26 loudspeaker orientations named Step45, which can be used to reproduce the target directivity as well as if the orientations were determined adopting mathematical methods that give equilibrium configurations.
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http://dx.doi.org/10.1121/10.0006660 | DOI Listing |
Laterality
January 2025
Department of Psychology, University of Toledo, Toledo, OH, USA.
An analysis of the handedness of the four members of the British rock band The Beatles is presented. Implications for the roles of the left and right hands in the playing of different musical instruments, for the roles of the left versus right hemispheres in song writing, and for the Beatle's legacy in popular culture are discussed.
View Article and Find Full Text PDFSci Robot
January 2025
Sony Computer Science Laboratories Inc. (Sony CSL), Tokyo, Japan.
For trained individuals such as athletes and musicians, learning often plateaus after extensive training, known as the "ceiling effect." One bottleneck to overcome it is having no prior physical experience with the skill to be learned. Here, we challenge this issue by exposing expert pianists to fast and complex finger movements that cannot be performed voluntarily, using a hand exoskeleton robot that can move individual fingers quickly and independently.
View Article and Find Full Text PDFBehav Brain Sci
January 2025
Centre for Logic and Philosophy of Science, Ghent University, Ghent,
Stibbard-Hawkes challenges the link between symbolic material evidence and behavioural modernity. Extending this to non-human species, we find that personal adornment, decoration, figurative art, and musical instruments may not uniquely distinguish human cognition. These common criteria may ineffectively distinguish symbolic from non-symbolic cognition or symbolic cognition is not uniquely human.
View Article and Find Full Text PDFJAMA Pediatr
January 2025
Department of Cardiology, Harvard Medical School and Boston Children's Hospital, Boston, Massachusetts.
Importance: Multisystem inflammatory syndrome in children (MIS-C) is a life-threatening complication of COVID-19 infection. Data on midterm outcomes are limited.
Objective: To characterize the frequency and time course of cardiac dysfunction (left ventricular ejection fraction [LVEF] <55%), coronary artery aneurysms (z score ≥2.
J Alzheimers Dis
January 2025
Department of Psychology and Visual Sciences, University of Leicester, Leicester, UK.
Background: Pharmacological treatment of behavioral and psychological symptoms of dementia is of limited benefit. The addition of non-pharmacological interventions is often essential for optimal symptom control. Music is a viable way to help patients communicate and improve their quality of life.
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