The fundamental frequency of a pitched sound is measurable from its waveform period
Evidence
The temporal theory of pitch perception is based on the fact that the waveform of a sound with a strong musical pitch repeats or is periodic (see Table 3.2). An example is shown in Figure 3.1 for A4 played on four instruments. The f0 for a periodic sound can be found from a measurement of the period of a cycle of the waveform using Equation 3.1. β David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 891
Categorization
- DEFINE: Explains how the temporal theory defines pitch via waveform periodicity and f0 measurement.
- corroborated: 2 independent passages support this claim β David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 891
- XREF: connects to: Peaked ripple noise pitch strength stays stable across a wide level range β Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 828; Sound can be captured as permanent physical markings that encode its pitch; Frequency measured in Hertz is dimensionally inverse seconds (+13 more)
Broader Connections
- Listeners perceive the fundamental frequency even when its lowest partials are absent
#expands(0.78) β Ville Pulkki, Matti Karjalainen, Communication Acoustics- Anβ¦, 1115 - Pitch correlates with frequency but is also slightly level-dependent
#expands(0.75) - Pitch perception depends on harmonics being integer multiples of the fundamental
#qualifies(0.72) β David Howard, Jamie Angus, coustics and Psychoacoustics, 864