Acoustic Analysis of Musical Instruments

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Discussion Overview

The discussion focuses on the acoustic analysis of musical instruments, exploring how to model instruments to predict tone and timbre. Participants discuss the relevance of various fields such as finite element analysis (FEA), computational fluid dynamics (CFD), and digital signal processing in this context.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant expresses interest in modeling musical instruments and seeks guidance on the necessary knowledge and methods, questioning the roles of FEA and CFD in this analysis.
  • Another participant suggests resources and websites that provide insights into acoustic analysis and sound modeling.
  • A third participant recommends a specific book by Rossing as a starting point for understanding the subject.
  • It is proposed that a background in structural and fluid mechanics is essential for understanding the physics of acoustic instruments, while digital signal processing is important for simulating instruments in real-time.
  • Additional resources are provided, including websites focused on acoustics and music technology.

Areas of Agreement / Disagreement

Participants generally agree on the importance of both physical modeling and digital signal processing in the analysis of musical instruments, but there is no consensus on the specific approaches or methodologies to be used.

Contextual Notes

The discussion does not resolve the specific methodologies for modeling instruments or the balance between physical accuracy and computational efficiency in simulations.

czechman45
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I'd like to learn more about acoustic analysis of musical instruments, but I have no idea where to even start. I've taken some acoustics courses and some fluid dynamics courses as well as structural vibrations. What I'd like to do is model an instrument and then have a numerically predicted tone and timbre. I know that this has been done at least several times with a guitar model. Is this primarily an FEA problem? Does CFD come into play here? How would I go about doing this and what types of things would I have to learn about?

Thanks for your input!
 
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You might want to start with Rossing's book on the subject.
 
If you want to understand the physics of an acoustic instrument, then structural and fluid mechanics (both computational an experimental) is a good starting point.

On the other hand if you want to simulate an instrument (real or imagined), especailly if you want to be able to "play" it in real time, you want a strong background in digital signal processing, and there has been a lot of work on producing fast approxmate algorithms that "sound good" even if they are not an accurate detailed model of the physics.

Two more websites:
https://ccrma.stanford.edu/
http://www.phys.unsw.edu.au/music/
 

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