Stopped pipes save space but sacrifice even-numbered harmonics

Evidence

Careful listening to pipes voiced with a chiff will reveal that open pipes start briefly an octave high since their first over­ blown mode is the second harmonic, and stopped pipes start an octave and a fifth high since their first overblown mode is the third harmonic. — David Howard, Jamie Angus, coustics and Psychoacoustics, 1471 (#complicates, via linked claim)

Categorization

• XREF: connects to: A closed pipe end reflects a pulse with no energy loss without moving; Short wavelengths escape open pipe ends while long wavelengths reflect back; An open-open pipe’s modes form a complete harmonic series at integer multiples (+5 more)

Broader Connections

• Open and stopped organ pipes audibly start on different overblown harmonics #complicates (0.75) — David Howard, Jamie Angus, coustics and Psychoacoustics, 1471