PURPOSE: To determine the Fourier spectrum of complex waves.
DESCRIPTION: This experiment uses a Wavetek wave analyzer to determine the Fourier spectrum, simultaneously displaying the wave shape and the Fourier spectrum on its CRT. Any periodic wave from a wave generator or sound, such as a musical instrument or the singing voice, can be analyzed. This device is easy to use, but not as slick as the computer version, demonstration H4-02: FOURIER ANALYSIS - WAVE SHAPE AND SPECTRUM. A variety of waves can be input from both wave generators, such as the standard wave shapes, and a microphone, such as instrumental or vocal singing sounds.
REFERENCES: (PIRA unavailable.)
EQUIPMENT: Wavetek analyzer, wave generator, microphone and amplifier for acoustical sounds.
SETUP TIME: 10 min.
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