Removing harmonics degrades f0 discrimination but it stays precise without them

Evidence

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

Categorization

• QUESTION: A striking quantitative anchor: F0DL of ~2.5% even with harmonics removed - worth noting for pitch perception application detail.