Pure-tone instruments readily produce audible combination tones

Evidence

Combination tones are perceived quite easily when two musical instru­ ments produce fairly pure tone outputs, such as the descant recorder, baroque flute or piccolo, whose f0 values are high and close in frequency. — David Howard, Jamie Angus, coustics and Psychoacoustics, 1621

Categorization

• corroborated: 3 independent passages support this claim — David Howard, Jamie Angus, coustics and Psychoacoustics, 1621
• XREF: connects to: Cancellation equalizes internally produced combination tones with an external tone; Combination tones beat against other near-pitched instruments unless masked; Combination tones exist below both source tones and vary in audibility (+1 more)

Broader Connections

• The ear generates audible combination tones not present in the stimulus #corroborates (0.90) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1571
• Combination tones exist below both source tones and vary in audibility #expands (0.85)
• Combination tones beat against other near-pitched instruments unless masked #expands (0.82)