Moving sources make reflected-sound comb-filtering audible as pitch rather than mere colouration

Evidence

Repetition pitch is perceived (by most but not all listeners) if a non-periodic noisebased signal, for example the sound of a waterfall, the consonants in see, shoe, fee, or a noise generator, is added to a delayed version of itself and played to listeners. When the delay is altered a change in pitch is perceived. — David Howard, Jamie Angus, coustics and Psychoacoustics, 939 (#corroborates, via linked claim)

Categorization

• XREF: connects to: Sitting near walls creates repetition-pitch coloration in perceived sound; A time delay of a reflection imprints a comb of enhanced and suppressed frequencies; Ground reflection colors all outdoor speech and creates comb-filter pitch (+5 more)

Broader Connections

• Mixing noise with its own delayed copy can create a sense of pitch #corroborates (0.75) — David Howard, Jamie Angus, coustics and Psychoacoustics, 939