All complex sounds, including noise, are superpositions of pure sinusoids
Evidence
So how can we analyze real sound waveforms and make sense of them in acoustical terms? The answer is based on the concept of superposition and a technique called Fourier analysis. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 439 (
#corroborates, via linked claim)
Categorization
- XREF: connects to: Sinusoidal vibration is the fundamental atom of all sound; Only a sinusoid has a single frequency; every other shape contains multiple frequencies; Superposition lets complex waveforms be solved as sums of sine wave solutions — David Howard, Jamie Angus, coustics and Psychoacoustics, 439 (+4 more)
Broader Connections
- Sinusoidal vibration is the fundamental atom of all sound
#corroborates(0.95) - Any complex waveform can be decomposed into simple sine waves
#corroborates(0.95) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 439 - Superposition lets complex waveforms be solved as sums of sine wave solutions
#corroborates(0.90) — David Howard, Jamie Angus, coustics and Psychoacoustics, 439 - Any complex waveform can be built from independent orthogonal sine waves
#corroborates(0.90) - Complex real-world sounds can be analyzed via Fourier analysis
#corroborates(0.88) — David Howard, Jamie Angus, coustics and Psychoacoustics, 436 - Only a sinusoid has a single frequency; every other shape contains multiple frequencies
#corroborates(0.85) - A resonant cavity can isolate a single frequency from complex sound.
#exemplifies(0.80) — Schafer, Murray R, The Soundscape- Our Sonic Environment…, 920