Open and stopped organ pipes audibly start on different overblown 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

Categorization

• DEFINE: Explains chiff voicing’s audible signature via overblown mode physics.
• XREF: Relates directly to the flute-pipe acoustics theory the reader should hold from Chapter 4. — connects to: Organ pipes’ timbre arises from resonances cooperating with edge tone; Chiff-voiced open pipes briefly sound an octave high at onset; Stopped pipes save space but sacrifice even-numbered harmonics (+4 more)
• corroborated: 2 independent passages support this claim — David Howard, Jamie Angus, coustics and Psychoacoustics, 1471

Broader Connections

• Open-open and open-closed tubes produce different harmonic series #corroborates (0.85)