What is it about?
The paper is about a model that simplifies the way that musical instruments radiate their sound into the room. The model is introduced and tested against physical and psychoacoustical measures.
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Why is it important?
Physically, almost every part of the instrumental body and the enclosed air vibrate during musical performance. All vibrating parts contribute to the sound that is radiated through air towards the ears of a listener, referred to as sound radiation characteristics. The sound radiation characteristics are physically complicated, difficult to measure, to calculate, and to compare. For many scientific applications and technical implementations, it is helpful to use a simplification which makes the data easy to measure, calculate, and compare . However, the simplification must have a meaningful physical and perceptual foundation. The complex point source model introduced in this paper is such a meaningful simplification. It is evaluated in several simulations.
Perspectives
The model can be used in auralizations of musical instruments, in simulations of instrument acoustics and room acoustics, and in psychoacoustic studies. It is suitable for sound field synthesis approaches, like wave field symthesis, higher order ambisonics and other spatial audio systems to come.
Dr. Tim Ziemer
University of Bremen
Read the Original
This page is a summary of: Complex point source model to calculate the sound field radiated from musical instruments, January 2015, Acoustical Society of America (ASA),
DOI: 10.1121/2.0000122.
You can read the full text:
Resources
Sound Radiation Characteristics of a Shakuhachi with different Playing Techniques
Application of the Complex Point Source Model for analysis of the shakuhachi, a Japanese flute.
Implementing the Radiation Characteristics of Musical Instruments in Sound Field Synthesis Applications
A research project about the implementation of the radiation characteristics of musical instruments in sound field synthesis applications. The approaches largely apply the complex point source model.
Huygens' principle
Huygens' principle for a complex point source. The color represents individual amplitude and phase in each direction.
Mauerlocheffekt
The "Mauerlocheffekt" (single slit diffraction) illustrates that the complicated, vivid sound radiation characteristics of musical instruments is lost when hearing music through a keyhole or through a mono-loudspeaker setup.
Psychoacoustic Sound Field Synthesis for Musical Instrument Radiation Characteristics
The complex point source model implemented in a sound field synthesis method for music.
Source Width in Music Production. Methods in Stereo, Ambisonics, and Wave Field Synthesis
The complex point source model, applied to predict the source width of musical instruments.
Contributors
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