Page 10 - Vibrations
P. 10
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Many sine waves when added will create a single
waveform, for example.
() = sin( ) + cos( ) + sin( )
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The frequencies , , can be unrelated.
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This is what your ears are hearing all the time.
The process of identifying all the different frequency
components is known as spectral analysis – more this
later.
Beating
If two sine waves of very close frequencies are added
together they create a beat frequency.
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