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POS_18 - Physics of Sound Lecture 18 1 Fourier analysis and...

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Physics of Sound Lecture 18 1. Fourier analysis and synthesis of waves. 2. Fourier Analysis of tones. 3. Tone quality.
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Fourier Analysis Mathematically, any sound can be analyzed in terms of (taken apart – seen as the linear superposition of) pure constant tones. They can must be added with the correct amplitude and phase, but in this way you can make any sound.
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The trace on the bottom is the sum of all the cosine waves above it.
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Two representations Time domain Frequency domain
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Spectrogram is in the middle
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