Higher F0 reduces pitch resolvability because harmonics interact less within a filter.

Evidence

The results of the simulation plotted in Fig. 3 are strongly consistent with Oxenham et al. ( 2011 ). Using a plausible refractory period of 2500 Hz, the simulation is able to extract the TE × TSFperiod even if the TSFperiod are too fast to be correctly encoded. The decrease in performances reported in Oxenham et al. ( 2011 ) when increasing the F0 from 1200 Hz to up to 2000 Hz is also simulated. This decrease is probably explained by a decrease in resolvability (less and less interactions between harmonic components) when increasing the F0. — Dijk, Pim van, Physiology, Psychoacoustics and…, 4613 (#expands, via linked claim)

Removing the lowfrequency harmonics led to greater and greater difficulties discriminating between two sounds with different f0s. A general trend is that as long as the harmonic stimuli contained harmonics 1 to 10, f0 discrimination was very good, but became worse off after more harmonics were removed. Although the F0DL was larger when some of the harmonics are removed, it was still very low at about 2.5% of the fundamental frequency. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1306 (#complicates, via linked claim)

Categorization

• XREF: connects to: High-pitched sounds above 5 kHz offer few harmonics, so pitch perception degrades sharply. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 908; Rising F0 lowers resolved harmonic interactions and worsens pitch extraction; Raising fundamental frequency worsens pitch perception by reducing harmonic resolvability — Dijk, Pim van, Physiology, Psychoacoustics and…, 4613 (+2 more)

Broader Connections

• Rising F0 lowers resolved harmonic interactions and worsens pitch extraction #expands (0.95)
• Raising fundamental frequency worsens pitch perception by reducing harmonic resolvability #expands (0.93) — Dijk, Pim van, Physiology, Psychoacoustics and…, 4613
• Removing harmonics degrades f0 discrimination but it stays precise without them #complicates (0.78) — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1306