Periodic and aperiodic spectra differ in discrete versus continuous partials

Evidence

Thus the main difference between the spectrum of periodic and aperiodic waveforms is that periodic waveforms have discrete partials, which can be represented as lines in the spectrum with a spacing that is inversely proportional to the period of the 7F Hz 5F Hz 3. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 460

Categorization

• DEFINE: Distills the periodic/aperiodic spectral distinction into one sentence right where the paragraph is cut off mid-sentence in the source — but the claim stands.
• corroborated: 2 independent passages support this claim — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 460
• XREF: connects to: Signals with autocorrelations that decay to zero need continuous spectra; Periodic sounds give line spectra while aperiodic sounds give continuous spectra — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 822; Periodic pressure waves are perceived as pitched while nonperiodic ones are not — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 826

Broader Connections

• Periodic pressure waves are perceived as pitched while nonperiodic ones are not #expands (0.90) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 826