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PVC Pipe Instrument. Goal: To make a unique instrument out of PVC Pipe. Jim Pepper. Where We Left Off…. Pipes Completed Frame Needed to be Built. Objective- Portability, Easy to Assemble. Legs and Lower Frame More PVC. The Finished Project. Not screwed together, straps needed for support.
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PVC Pipe Instrument Goal: To make a unique instrument out of PVC Pipe Jim Pepper
Where We Left Off… Pipes Completed Frame Needed to be Built Objective- Portability, Easy to Assemble Legs and Lower Frame More PVC
The Finished Project Not screwed together, straps needed for support New “mallet”- Wood with mouse pad that is looser Playable in the same way as a xylophone
Off? Some lengths were off. First, the estimate from the equation (Length=12434.3125/(2*Frequency) + Radius) Second, estimate based on frequency ratios Third, exact measurement from instrument
Is the Pitch Off? Using a chromatic tuner, found each pitch difference in cents Used the equation 440*2^((Pitch-69)/12) to get the actual frequency
Sound End Correction- From Benson Effective length longer than actual length by approx. 3/5 of tube width -Sound coming out of it If this were the case, each would have to be shorter Difference is scattered, both + and - Pipe, 2 open ends Wave Equation ∂²p/∂²x² = 1/c²*∂²p/∂t² Could then be cutting error
Conclusion Despite slight differences in length, each pitch is still identifiable with its respective note Full 12 note octave can be played as well as all intervals