Vibration or Oscillation?

Discussion in 'Trumpet Discussion' started by Ed Lee, Jan 15, 2013.

  1. Ed Lee

    Ed Lee Utimate User

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    While most consider the "buzz" to be vibration, one axis only, as the sound proceed through the brass instrument I perceive it changes to oscillation with a pulsing rotation. Any comments?
     
  2. acarcido

    acarcido Forte User

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    Read the following for the physics of the trumpet.

    Trumpet

    It's great source of info and I am currently working on a program that will analyze the frequency characteristics of the sound a trumpet makes.

    In simple perspective: The "buzz" is the vibration of the lips that create sound. That sound can be translated as analog sine waves that pass through the trumpet creating a standing wave that comes back to the mouthpiece. I think this standing wave is what you are considering to be the oscillation, but the frequency has many components in there (harmonics) that vary from horn to horn and there are limitations as well. Not sure I can break it down into simple terms.
     
  3. gzent

    gzent Fortissimo User

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    Art:

    Here is a page with a collection of articles on trumpet physics:

    Trumpet Physics

    Greg
     
  4. acarcido

    acarcido Forte User

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    Greg, thank you very much for this bit of info.
     
  5. Ed Lee

    Ed Lee Utimate User

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    While you did say you hadn't updated these recently (disclaimer), I did find many of the reference sites now unaccessible.
     
  6. acarcido

    acarcido Forte User

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    Ed, I noticed the same thing, but the core page is still accessible.
     
  7. gzent

    gzent Fortissimo User

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    Yep, I just have not had time to keep that web site up to date.

    At some point (getting sooner) I will have to give it to someone or take it down.
     
  8. acarcido

    acarcido Forte User

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    Don't take it down, better to give to a knowlegeable person. This is a great source of info for those interested in how it works from a scientific method.
     

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