Chapter 11- Complex Waves Flashcards
Fourier’s theorem
Any wave pattern, no matter how complex, may be broken down into constituent sinusoids of different amplitudes
Complex wave
Any wave other than a sinusoid
Partial
Each sinusoid helping make up a complex wave
The first partial
The fundamental
The higher partials can be ____
Either harmonic or inharmonic
When the higher partials frequencies are integer multiples of the fundamental freq
Harmonic partials
When the higher partials frequencies are not integers of the fundamental freq
Inharmonic partials
Two categories of complex waves
Periodic and non periodic
Periodic waves
Waveforms that repeat after some fundamental period. Implies “harmonic partials”
Nonperiodic waves
Waveforms with no discernible pattern of repetition. Inharmonic partials.
Filter
A device which allows certain frequencies to pass through unchanged, while other frequencies are eliminated.
Wave analysis
Breaking down of a complex wave into its sinusoidal components
Wave synthesis
The building up of complex waves from its sinusoidal components.
Spectrum of a complex wave
A physical characteristic that relates to the perceptual characteristic of tone color.