# Acoustics

Independent Study contract

Text: *The Physics of Music and Musical Instruments*, David Lapp.

**Assignments**
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Read and answer questions from pages 1 - 14.
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Experiment: Determine the speed of sound using two independent methods.
Write a brief report (400 words) describing these methods and the results.
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Read and answer questions from pages 15 - 26.
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Experiment: For both a closed/open and open/open pipe with adjustable lengths, graph frequency
versus pipe length. Write a brief report describing the methods and results.
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Read and answer questions from pages 27 - 39.
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Experiment: For a metal wire, graph frequency versus tension. Write a brief report
describing the methods and results.
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Read and answer questions from pages 40 - 54.
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Experiment: Record four stringed instruments playing various notes and compare the FFT
graphs. Write a brief report describing the methods and results.
SpectrumView is a good, basic FFT program.
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Read and answer questions from pages 55 - 65.
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Experiment: Record four brass instruments playing various notes and compare the FFT
graphs. Write a brief report describing the methods and results.
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Read and answer questions from pages 66 - 78.
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Experiment: Record four reed instruments playing various notes and compare the FFT
graphs. Write a brief report describing the methods and results.
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Read and answer questions from pages 79 - 88.
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Experiment: Record four percussion instruments and compare the FFT graphs. Write
a brief report describing the methods and results.
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Read and answer questions from pages 89 - 96.
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Experiment: Construct an instrument capable of playing a full octave of notes. Record
the tones and compare the FFT graphs to those of manufactured instruments. Write a brief
report describing the methods and results.
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Read and answer questions from pages 97 - 110.
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Experiment: Record performances at various positions within the school auditorium, measuring
relative tone quality and loudness. Write a brief report describing the methods and results.